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		<title><![CDATA[Ginnungagap]]></title>
        <link>http://agbjarn.blog.is/blog/agbjarn/</link>
        <description><![CDATA[Ginnungagap]]></description>
        <language>is-is</language>
        <pubDate>Sat, 20 Mar 2010 00:03:22 GMT</pubDate>
        <webMaster>blog@mbl.is</webMaster>
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            <title><![CDATA[Norðurljós á Satúrnusi og geimveðrið --- Myndir og myndbönd...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1028235/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1028235/?t=1268470052</guid>
            <description><![CDATA[<p>&nbsp;</p><div style="text-align: center"><img class="align_lcenter" src="/users/fa/agbjarn/img/aurora1_wikipedia_big.jpg?img_id=969678" border="1" alt="Norðurljós" title="Norðurljós" width="600" /></div> <br /><br /><p><font size="3" color="#006400">Ekki bara norðurljós, heldur auðvitað einnig suðurljós....&nbsp; Allir hafa séð norðurljósin dansa á himninum, en hve margir hafa séð norðurljós á öðrum reikistjörnum? Þau eru einnig þar, það er að segja ef reikistjörnurnar hafa nægilega öflugt segulsvið til að fanga rafagnir frá sólinni. Þannig eru engin norðurljós á Venusi og Mars, en undurfögur á Satúrnusi og Júpíter.&nbsp; Satúrnus ber þó af í fegurð.</font></p><p><font size="3" color="#006400">Hér fyrir neðan eru nokkrar myndir og myndbönd af norðurljósum á þessari fallegu reikistjörnu. Sjón er sögu ríkari - njótið myndanna! </font></p><p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="494"><param name="movie" value="http://www.youtube.com/v/7AmyfuJDMlY&amp;rel=1" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://www.youtube.com/v/7AmyfuJDMlY&amp;rel=1" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="494"></embed></object></div> <br /><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/-saturnaurora28jan04-1280x800.jpg?img_id=968643" border="1" width="600" /></div><p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/hst1998-aurora_969680.jpg?img_id=969680" border="1" width="600" /></div> <br /><br /><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/saturnaurora.jpg?img_id=969681" border="1" width="600" /></div><br /><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="494"><param name="movie" value="http://www.youtube.com/v/02P3ODtRwWw&amp;rel=1" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://www.youtube.com/v/02P3ODtRwWw&amp;rel=1" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="494"></embed></object></div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><font size="4">--- --- ---</font></div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><strong><a href="http://olgeir.zenfolio.com/p1027692929/hd8e0c12#h1e4e0f39">&nbsp;</a><u><a href="http://olgeir.zenfolio.com/p1027692929/hd8e0c12#h1e4e0f39">Fallegar norðurljósamyndir eftir Olgeir Andrésson </a></u></strong></div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><strong><a href="http://www.flickr.com/photos/gunnargestur/sets/72157613557157699/"><u>Fallegar norðurljósamyndir eftir Gunnar Gest </u></a></strong><br /></div><div style="text-align: center">&nbsp;</div><div style="text-align: center">Í myndasafni <a href="http://www.verkis.is/um-okkur/starfsmenn/persona/skt"><strong><u>Skarphéðins&nbsp; Þráinssonar &quot;Skarpa&quot;</u></strong></a> leynast fallegar og skarpar <strong><u><a href="http://www.flickr.com/photos/skarpi/">norðurljósamyndir</a></u></strong></div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><font size="3" color="#008000">Vissulega eru norðurljósin falleg, en allt er best í hófi:</font></div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><strong><u><a href="/blog/agbjarn/entry/941577/">Carrington sólblossinn </a></u></strong><br /></div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><u><a href="http://brunnur.rt.is/ahb/pdf/Severe-Space-Weather-Events-Report.pdf"><strong>Severe
 Space Wether Events - Understanding Social and Economic Impacts. 
Workshop Report</strong></a></u> <br /></div><p align="center"><u><br />&nbsp;</u><font size="3"><u><strong><font color="#ff0000"><font size="2" style="color: #000000; font-weight: normal"><a href="/blog/agbjarn/entry/779174/"><strong>Öflug 
sólgos geta haft afdrifaríkar afleiðingar á jörðu niðri</strong></a></font></font></strong></u></font></p><p align="center">&nbsp;</p><p align="center">&nbsp;</p>]]></description>
            <pubDate>Sat, 13 Mar 2010 08:47:32 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Flugvélar framtíðarinnar verða margar hverjar rafknúnar - Myndbönd...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1026363/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1026363/?t=1267869294</guid>
            <description><![CDATA[<p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/yuneec-e340-electric-aircraft-post.jpg?img_id=967260" border="1" width="600" /></div><p>&nbsp;</p><p>Þessi draumur er orðinn að veruleika. Þessi fallega tveggja manna flugvél á myndinni er rafknúin og því næstum hljóðlaus. Þetta er alvöru flugvél í fullri stærð, en ekki leikfang. Flugvélin er kínversk og kallast <u><a href="http://yuneeccouk.site.securepod.com/index.html">Yuneec</a></u> e430. <font size="1">(Yuneec er borið fram eins og unique). <font size="2">Sjá myndir og myndbönd <u><a href="http://yuneeccouk.site.securepod.com/Aircraft_News.html">hér</a></u>.</font><br /></font></p><p>Áður hefur verið fjallað um rafknúnar mannbærar flugvélar í pistlinum:&nbsp; <u><font size="2"><a href="/blog/agbjarn/entry/616428/">Rafknúnar
 alvöru flugvélar - Myndir og myndbönd</a></font></u></p><p>&nbsp;</p><p>&nbsp;Sjón er sögu ríkari:</p><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="494"><param name="movie" value="http://www.youtube.com/v/TwyyQ1BckK0&amp;rel=1" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://www.youtube.com/v/TwyyQ1BckK0&amp;rel=1" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="494"></embed></object></div> <p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="494"><param name="movie" value="http://www.youtube.com/v/Vxfsz95XHb0&amp;rel=1" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://www.youtube.com/v/Vxfsz95XHb0&amp;rel=1" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="494"></embed></object></div> <br /><br /><br /><p>&nbsp;</p><p>Þessi stóra B-50 sprengjuflugvél sem er í eigu <u><a href="http://www.modelflying.co.uk/news/article.asp?a=4703">Tony Nijhuis</a></u> er rafknúin. Ekki þó mannbær eins og Yuneec:</p><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="494"><param name="movie" value="http://www.youtube.com/v/jFSOMzTromM&amp;rel=1" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://www.youtube.com/v/jFSOMzTromM&amp;rel=1" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="494"></embed></object></div><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p>]]></description>
            <pubDate>Sat, 06 Mar 2010 09:54:54 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Heimur á heljarþröm - Yfirvofandi loftslagsbreytingar...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1025839/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1025839/?t=1267770721</guid>
            <description><![CDATA[<p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/global_warming.gif?img_id=967053" border="0" width="500" align="absmiddle" /></div> <br /><p>&nbsp;</p><p>&nbsp;</p><p><strong><font size="3"><font color="#808080">Undanfarið hafa verið í fréttum fjölmiðla heimsins ógnvænlegar lýsingar á ástandinu í lofthjúpi jarðar. Fyllsta ástæða er til að gefa þessu gaum, því ógnvaldurinn er allt um kring, ósýnilegur og undirförull</font> </font></strong><img src="/js/tiny_mce/plugins/emotions/images/Ninja.png" border="0" align="absmiddle" /></p><p><font size="3">Lesið meira í tilefni þess að helgin er í nánd... </font><img src="/js/tiny_mce/plugins/emotions/images/Smile.png" border="0" align="absmiddle" /></p><p><font size="3">Hér fyrir neðan eru allmargar tilvitnanir í fréttir. Orðréttar á frummálinu. </font></p><p>&nbsp;</p><p><font color="#993300"><span style="font-size: 20px; font-weight: bold; font-family: Times New Roman"></span><br /></font></p><p>&nbsp;</p><p><strong><font color="#000080">The Arctic Ocean is warming up, icebergs are growing 
scarcer and in some places the seals are finding the water too hot,&rdquo; 
according to a Commerce Department report published by the <font color="#0000ff"><em>Washington 
Post</em></font>. Writes the Post: &ldquo;Reports from fishermen, seal hunters and 
explorers. . . all point to a radical change in climate conditions and .
 . . unheard-of temperatures in the Arctic zone . . . Great masses of 
ice have been replaced by moraines of earth and stones . . . while at 
many points well-known glaciers have entirely disappeared.&rdquo;
</font></strong></p>
<p><font color="#000080">
<font color="#800000">Ljótt að lesa þessa frásögn sem er úr<strong> Washington Post 2. nóvember</strong>. Reyndar var það fyrir níu áratugum, eða árið 1922. Hér fyrir neðan eru fleiri úrklippur, allt frá því 1870, eða fyrir svo sem 130 árum. Nú hlýtur ástandið að vera virkilega slæmt fyrst það hefur varað svona lengi. Hvað getum við gert í málinu? Er ekki heimurinn á heljarþröm?<br /></font></font></p><p align="center"><strong><font size="1" color="#808000">&gt;&gt;&gt; Det er en frygtelig historie! ... </font></strong><font color="#993300"><strong><font size="1" color="#808000">Og
 det kom i avisen og det blev trykt og det er ganske vist: <br />En lille fjer
 kan nok blive til fem høns! &lt;&lt;&lt;</font></strong><br /></font></p><p>&nbsp;</p><p><font color="#000080">
<font color="#0000ff">&ldquo;The climate of New-York and the contiguous Atlantic seaboard has long 
been a study of great interest. We have just experienced a remarkable 
instance of its peculiarity. The Hudson River, by a singular freak of 
temperature, has thrown off its icy mantle and opened its waters to 
navigation.&rdquo; - <strong>New York Times, Jan. 2, 1870
</strong></font></font></p>
<p><font color="#000080">
&ldquo;Is our climate changing? The succession of temperate summers and open 
winters through several years, culminating last winter in the almost 
total failure of the ice crop throughout the valley of the Hudson, makes
 the question pertinent. The older inhabitants tell us that the winters 
are not as cold now as when they were young, and we have all observed a 
marked diminution of the average cold even in this last decade.&rdquo; -  <strong>New 
York Times, June 23, 1890</strong>
</font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;The question is again being discussed whether recent and long-continued
 observations do not point to the advent of a second glacial period, 
when the countries now basking in the fostering warmth of a tropical sun
 will ultimately give way to the perennial frost and snow of the polar 
regions.&rdquo; - <strong>New York Times, Feb. 24, 1895</strong></font>
</font></p>
<p><font color="#000080">
Professor Gregory of Yale University stated that &ldquo;another world 
ice-epoch is due.&rdquo; He was the American representative to the Pan-Pacific
 Science Congress and warned that North America would disappear as far 
south as the Great Lakes, and huge parts of Asia and Europe would be 
&ldquo;wiped out.&rdquo; - <strong>Chicago Tribune, Aug. 9, 1923
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;The discoveries of changes in the sun&rsquo;s heat and southward advance of 
glaciers in recent years have given rise to the conjectures of the 
possible advent of a new ice age&rdquo; - <strong>Time Magazine, Sept. 10, 1923
</strong></font></font></p>
<p><font color="#000080">
Headline: &ldquo;America in Longest Warm Spell Since 1776; Temperature Line 
Records a 25-year Rise&rdquo; - <strong>New York Times, March 27, 1933
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;America is believed by Weather Bureau scientists to be on the verge of a
 change of climate, with a return to increasing rains and deeper snows 
and the colder winters of grandfather&rsquo;s day.&quot;-  <strong>Associated Press, Dec. 
15, 1934
</strong></font></font></p>
<p><font color="#000080">
Warming Arctic Climate Melting Glaciers Faster, Raising Ocean Level, 
Scientist Says - &ldquo;A mysterious warming of the climate is slowly 
manifesting itself in the Arctic, engendering a &ldquo;serious international 
problem,&rdquo; Dr. Hans Ahlmann, noted Swedish geophysicist, said today. - <strong>
New York Times, May 30, 1937
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;Greenland&rsquo;s polar climate has moderated so consistntly that communities
 of hunters have evolved into fishing villages. Sea mammals, vanishing 
from the west coast, have been replaced by codfish and other fish 
species in the area&rsquo;s southern waters.&rdquo; - <strong>New York Times, Aug. 29, 1954
</strong></font></font></p>
<p><font color="#000080">
&ldquo;An analysis of weather records from Little America shows a steady 
warming of climate over the last half century. The rise in average 
temperature at the Antarctic outpost has been about five degrees 
Fahrenheit.&rdquo; - <strong>New York Times, May 31, 1958
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;Several thousand scientists of many nations have recently been climbing
 mountains, digging tunnels in glaciers, journeying to the Antarctic, 
camping on floating Arctic ice. Their object has been to solve a 
fascinating riddle: what is happening to the world&rsquo;s ice? - <strong>New York 
Times, Dec. 7, 1958</strong></font>
</font></p>
<p><font color="#000080">
&ldquo;After a week of discussions on the causes of climate change, an 
assembly of specialists from several continents seems to have reached 
unanimous agreement on only one point: it is getting colder.&rdquo; - <strong>New York
 Times, Jan. 30, 1961
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;Like an outrigger canoe riding before a huge comber, the earth with its
 inhabitants is caught on the downslope of an immense climatic wave that
 is plunging us toward another Ice Age.&rdquo; - <strong>Los Angeles Times, Dec. 23, 
1962
</strong></font></font></p>
<p><font color="#000080">
&ldquo;Col. Bernt Balchen, polar explorer and flier, is circulating a paper 
among polar specialists proposing that the Arctic pack ice is thinning 
and that the ocean at the North Pole may become an open sea within a 
decade or two.&rdquo; - <strong>New York Times, Feb. 20, 1969
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;By 1985, air pollution will have reduced the amount of sunlight 
reaching earth by one half ...&rdquo; - <strong>Life magazine, January 1970
</strong></font></font></p>
<p><font color="#000080">
&ldquo;In ten years all important animal life in the sea will be extinct. 
Large areas of coastline will have to be evacuated because of the stench
 of dead fish.&rdquo; - <strong>Paul Ehrlich, Earth Day, 1970
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;Civilization will end within 15 or 30 years unless immediate action is 
taken against problems facing mankind. We are in an environmental crisis
 which threatens the survival of this nation, and of the world as a 
suitable place of human habitation.&rdquo; - <strong>Barry Commoner (Washington 
University), Earth Day, 1970
</strong></font></font></p>
<p><font color="#000080">
Because of increased dust, cloud cover and water vapor, &ldquo;the planet will
 cool, the water vapor will fall and freeze, and a new Ice Age will be 
born.&rdquo; - <strong>Newsweek magazine, Jan. 26, 1970
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;The United States and the Soviet Union are mounting large-scale 
investigations to determine why the Arctic climate is becoming more 
frigid, why parts of the Arctic sea ice have recently become ominously 
thicker and whether the extent of that ice cover contributes to the 
onset of ice ages.&rdquo; - <strong>New York Times, July 18, 1970
</strong></font></font></p>
<p><font color="#000080">
&ldquo;In the next 50 years, fine dust that humans discharge into the 
atmosphere by burning fossil fuel will screen out so much of the sun&rsquo;s 
rays that the Earth&rsquo;s average temperature could fall by six degrees. 
Sustained emissions over five to 10 years, could be sufficient to 
trigger an ice age.&rdquo; - <strong>Washington Post, July 9, 1971
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;It&rsquo;s already getting colder. Some midsummer day, perhaps not too far in
 the future, a hard, killing frost will sweep down on the wheat fields 
of Saskatchewan, the Dakotas and the Russian steppes. . . .&rdquo; - <strong>Los 
Angles Times, Oct. 24, 1971
</strong></font></font></p>
<p><font color="#000080">
&ldquo;An international team of specialists has concluded from eight indexes 
of climate that there is <strong>no end in sight to the cooling trend of the 
last 30 years</strong>, at least in the Northern Hemisphere.&rdquo; - <strong>New York 
Times, Jan. 5, 1978
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;A poll of climate specialists in seven countries has found a consensus 
that there will be no catastrophic changes in the climate by the end of 
the century. But the specialists were almost equally divided on whether 
there would be a warming, a cooling or no change at all.&rdquo; - <strong>New York 
Times, Feb. 18, 1978
</strong></font></font></p>
<p><font color="#000080">
&ldquo;A global warming trend could bring heat waves, dust-dry farmland and 
disease, the experts said&hellip; Under this scenario, the resort town of Ocean
 City, Md., will lose 39 feet of shoreline by 2000 and a total of 85 
feet within the next 25 years.&rdquo; - <strong>San Jose Mercury News, June 11, 1986
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;Global warming could force Americans to build 86 more power plants&mdash;at a
 cost of $110 billion&mdash;to keep all their air conditioners running 20 
years from now, a new study says...Using computer models, researchers 
concluded that global warming would raise average annual temperatures 
nationwide two degrees by 2010, and the drain on power would require the
 building of 86 new midsize power plants - <strong>Associated Press, May 15, 
1989</strong></font>
</font></p>
<p><font color="#000080">
&ldquo;New York will probably be like Florida 15 years from now.&rdquo;&mdash;<strong>St. Louis 
Post-Dispatch, Sept. 17, 1989</strong> (Reyndar var það öfugt 20 árum síðar).
</font></p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;[By] 1995, the greenhouse effect would be desolating the heartlands of 
North America and Eurasia with horrific drought, causing crop failures 
and food riots . . . [By 1996] The Platte River of Nebraska would be 
dry, while a continent-wide black blizzard of prairie topsoil will stop 
traffic on interstates, strip paint from houses and shut down computers .
 . . The Mexican police will round up illegal American migrants surging 
into Mexico seeking work as field hands.&rdquo; - <strong>&ldquo;Dead Heat: The Race Against
 the Greenhouse Effect,&rdquo; Michael Oppenheimer and Robert H. Boyle, 1990.
</strong></font></font></p>
<p><font color="#000080">
&ldquo;It appears that we have a very good case for suggesting that the El 
Ninos are going to become more frequent, and they&rsquo;re going to become 
more intense and in a few years, or a decade or so, we&rsquo;ll go into a 
permanent El Nino. So instead of having cool water periods for a year or
 two, we&rsquo;ll have El Nino upon El Nino, and that will become the norm. 
And you&rsquo;ll have an El Nino, that instead of lasting 18 months, lasts 18 
years,&rdquo; according to Dr. Russ Schnell, a scientist doing atmospheric 
research at Mauna Loa Observatory. -<strong> BBC, Nov. 7, 1997</strong> <em>(Næstu þrjú ár eftir 1998 réð La Nina ríkjum. Ekki El Nino).</em></font>
</p>
<p><font color="#000080">
<font color="#0000ff">&ldquo;Scientists are warning that some of the Himalayan glaciers could vanish
 within ten years because of global warming. A build-up of greenhouse 
gases is blamed for the meltdown, which could lead to drought and 
flooding in the region affecting millions of people.&rdquo;&mdash;<strong>The Birmingham 
Post, England, July 26, 1999</strong></font>
</font></p>
<p><font color="#000080">
&ldquo;This year (2007) is likely to be the warmest year on record globally, 
beating the current record set in 1998.&rdquo; - <strong>ScienceDaily, Jan. 5, 2007
</strong></font></p>
<p><font color="#000080">
<font color="#0000ff">Arctic warming has become so dramatic that the North Pole may melt this 
summer (2008), report scientists studying the effects of climate change 
in the field. &ldquo;We&rsquo;re actually projecting this year that the North Pole 
may be free of ice for the first time [in history],&rdquo; David Barber, of 
the University of Manitoba, told National Geographic News aboard the 
C.C.G.S. Amundsen, a Canadian research icebreaker. - <strong>National Geographic
 News, June 20, 2008
</strong></font></font></p><p>&nbsp;</p>
<p><font color="#ff0000">
&ldquo;So the climate will continue to change, even if we make maximum effort 
to slow the growth of carbon dioxide. Arctic sea ice will melt away in 
the summer season within the next few decades. Mountain glaciers, 
providing fresh water for rivers that supply hundreds of millions of 
people, will disappear - practically all of the glaciers could be gone 
within 50 years. . . Clearly, if we burn all fossil fuels, we will 
destroy the planet we know . . . We would set the planet on a course to 
the ice-free state, with sea level 75 metres higher. Climatic disasters 
would occur continually.&rdquo; </font><strong><font color="#000080"><font color="#ff0000">Dr. James Hansen (NASA GISS), <u><a href="http://www.guardian.co.uk/commentisfree/2009/feb/15/james-hansen-power-plants-coal">The Observer</a></u>, 
Feb. 15, 2009.</font>
</font></strong></p><p><font color="#000080">&nbsp;</font></p><p><strong><font size="3" color="#999999">Úfff... </font></strong></p><p>&nbsp;</p><p><font size="3" color="#008000"><strong>Fylgist nú vel með fjölmiðlunum.&nbsp;&nbsp; Hvaða fréttir af ógnvaldinum mikla flytja þeir okkur næst? </strong></font></p><p>&nbsp;</p><p>Eigum við ekki að kæla okkur aðeins. &nbsp; Má bjóða upp á ís?...</p><p>... og meðan við erum að kæla okkur, hvað þýðir <strong>Déjà vu</strong> sem við upplifðum?&nbsp;&nbsp; <br />Sjá útskýringu á okkar ylhýra <strong><u><a href="http://is.wikipedia.org/wiki/D%C3%A9j%C3%A0_vu">hér</a></u></strong>.</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/tn/400/users/fa/agbjarn/img/global_warming_by_teabing_967141.jpg?img_id=967141" border="0" alt="global_warming_by_teabing_967141.jpg" title="global_warming_by_teabing_967141.jpg" align="absmiddle" /></div><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;Og svo ein klassísk frásögn í lokin um frétt sem er alveg sönn og kom meira að segja í blöðunum:</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><div align="center"><strong><font size="3">&nbsp;<font color="#993300"><span class="title">Det er ganske vist!</span></font></font></strong><font color="#993300"><br />Eventyr af Hans Christian Andersen 1852</font></div><div align="center">&nbsp;</div><div align="center"><img class="align_absmiddle" src="/tn/400/users/fa/agbjarn/img/ganske-vist1.jpg?img_id=967057" border="0" width="400" align="absmiddle" /> <br /></div><p><font color="#993300">&rdquo;</font><font color="#993300"><span style="font-size: 20px; font-weight: bold; font-family: Times New Roman">D</span>et er en frygtelig historie!&rdquo; sagde en høne, og det omme
 i den kant af byen, hvor historien ikke var passeret. &ldquo;Det er en 
frygtelig historie i hønsehuset! jeg tør ikke sove alene i nat! det er 
godt at vi er mange sammen på hjalet!&rdquo; &ndash; Og så fortalte hun, så at 
fjerene rejste sig på de andre høns og hanen lod kammen falde. Det er 
ganske vist!<br /><br />Men vi vil begynde med begyndelsen, og den var i den
 anden kant af byen i et hønsehus. Solen gik ned og hønsene fløj op; en 
af dem, hun var hvidfjeret og lavbenet, lagde sine reglementerede æg og 
var, som høne, respektabel i alle måder; idet hun kom til hjals, pillede
 hun sig med næbbet, og så faldt der en lille fjer af hende.<br /><br />&ldquo;Der
 gik den!&rdquo; sagde hun, &ldquo;jo mere jeg piller mig, des dejligere bliver jeg 
nok!&rdquo; Og det var nu sagt i munterhed, for hun var det muntre sind mellem
 de høns, i øvrigt, som sagt, meget respektabel; og så sov hun.<br /><br />Mørkt
 var det rundt om, høne sad ved høne og den, som sad hende nærmest, sov 
ikke; hun hørte og hun ikke hørte, som man jo skal i denne verden, for 
at leve i sin gode rolighed; men sin anden naboerske måtte hun dog sige 
det: &ldquo;Hørte du hvad her blev sagt? Jeg nævner ingen, men der er en høne,
 som vil plukke sig, for at se godt ud! var jeg hane, ville jeg foragte 
hende!&rdquo;<br /><br />Og lige oven over hønsene sad uglen med uglemand og 
uglebørn; de har skarpe ører i den familie, de hørte hvert ord, som 
nabohønen sagde, og de rullede med øjnene og uglemor viftede sig med 
vingerne: &ldquo;Hør bare ikke efter! men I hørte sagtens hvad der blev sagt? 
Jeg hørte det med mine egne ører, og man skal høre meget før de falder 
af! Der er en af hønsene, som i den grad har glemt, hvad der skikker sig
 en høne, at hun sidder og piller alle fjerene af sig og lader hanen se 
på det!&rdquo;<br /><br />&ldquo;Prenez garde aux enfants!&rdquo; sagde uglefader, &ldquo;det er 
ikke noget for børnene!&rdquo;<br /><br />&ldquo;Jeg vil dog fortælle genbougle det! det
 er sådan en agtværdig ugle i omgang!&rdquo; og så fløj mutter.<br /><br />&ldquo;Hu-hu!
 uhuh!&rdquo; tudede de begge to og det lige ned i genboens dueslag til 
duerne. &ldquo;Har I hørt det! har I hørt det! uhuh! der er en høne, som har 
plukket alle fjerene af sig for hanens skyld! hun fryser ihjel, om hun 
ikke er det, uhuh!&rdquo;<br /><br />&ldquo;Hvor? hvor?&rdquo; kurrede duerne!<br /><br />&ldquo;I 
genboens gård! jeg har så godt som selv set det! det er næsten en 
upassende historie at fortælle! men det er ganske vist!&rdquo;<br /><br />&ldquo;Tror, 
tror hvert evige ord!&rdquo; sagde duerne, og kurrede ned til deres hønsegård:
 &ldquo;Der er en høne, ja der er somme der siger, at der er to, som har 
plukket alle fjerene af sig, for ikke at se ud som de andre og således 
vække hanens opmærksomhed. Det er et voveligt spil, man kan forkøle sig 
og dø af feber, og de er døde begge to!&rdquo;<br /><br />&ldquo;Vågn op! vågn op!&rdquo; 
galede hanen og fløj op på plankeværket, søvnen sad ham endnu i øjnene, 
men han galede alligevel: &ldquo;Der er tre høns døde af ulykkelig kærlighed 
til en hane! de havde plukket alle fjerene af sig! det er en fæl 
historie, jeg vil ikke beholde den, lad gå videre!&rdquo;<br /><br />&ldquo;Lad gå 
videre!&rdquo; peb flagermusene, og hønsene klukkede og hanerne galede: &ldquo;Lad 
gå videre! lad gå videre!&rdquo; og så fór historien fra hønsehus til hønsehus
 og til sidst tilbage til stedet, hvorfra den egentlig var gået ud.<br /><br />&ldquo;Der
 er fem høns,&rdquo; hed det, &ldquo;som alle har plukket fjerene af sig, for at 
vise, hvem af dem der var blevet magrest af kærestesorg til hanen, og så
 hakkede de hinanden til blods og faldt døde ned, til skam og skændsel 
for deres familie og til stort tab for ejeren!&rdquo;<br /><br />Og hønen, som 
havde mistet den løse lille fjer, kendte naturligvis ikke sin egen 
historie igen, og da hun var en respektabel høne, så sagde hun: Jeg 
foragter de høns! men der er flere af den slags! Sligt skal man ikke 
fortie, og jeg vil gøre mit til, at den historie kan komme i avisen, så 
går den landet over; det har de høns fortjent og familien med!&ldquo;<br /><br /><strong>Og
 det kom i avisen og det blev trykt og det er ganske vist: En lille fjer
 kan nok blive til fem høns!</strong><br /><br /></font></p><div align="center"><font color="#993300">SLUT</font></div><div align="center">&nbsp;</div><div align="center"><img class="align_absmiddle" src="/tn/400/users/fa/agbjarn/img/ganske-vist_small.jpg?img_id=967058" border="0" alt="ganske-vist_small.jpg" title="ganske-vist_small.jpg" align="absmiddle" /> <br /></div><div align="center">&nbsp;</div><div align="center">&nbsp;</div><div align="center">&nbsp;</div><div align="center">&nbsp;</div><div align="center">&nbsp;</div><div align="center">Njótið helgarinnar <img src="/js/tiny_mce/plugins/emotions/images/Wizard.png" border="0" align="absmiddle" /></div>]]></description>
            <pubDate>Fri, 05 Mar 2010 06:32:01 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Röng þýðing seljanda sjónvarpstækja á hugtakinu contrast - Birtuskil en ekki skerpa...!]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1021668/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1021668/?t=1267555220</guid>
            <description><![CDATA[<p>&nbsp;</p><p><img class="align_left" src="/tn/120/users/fa/agbjarn/img/images_966393.jpg?img_id=966393" border="0" width="120" align="left" /><strong>Flestir seljendur sjónvarpstækja nota kolranga þýðingu á hugtakinu contrast.&nbsp; Þýða hugtakið sem skerpu. </strong></p><p><em>Contrast hefur réttilega verið þýtt sem birtuskil á íslensku, enda lýsir það hugtakinu vel.</em></p><p>Í auglýsingum má lesa til dæmis <strong>&quot;skerpa&nbsp; 10.000:1&quot;</strong>.&nbsp;&nbsp;&nbsp; Þar ætti að standa <strong>
&quot;birtuskil: 10.000:1&quot;</strong>. </p><p><strong>Að nota orðið skerpa fyrir contrast er undarlegt.</strong> Eiginlega bendir það til þess að viðkomandi sjónvarpsverslanir hafi aldrei komið nálægt ljósmyndun, þó svo að margar þeirra selji jafnframt dýrindis myndavélar.</p><p><strong>Skerpa&nbsp; er aftur á móti rétt&nbsp; þýðing á orðinu sharpness</strong>. Myndir sem ekki eru í fókus hafa lélega skerpu. Þetta vita flestir aðrir en seljendur sjónvarpstækja, svo undarlegt sem það nú er.</p><p>&nbsp;</p><p><strong>Á Vísindavefnum stendur eftirfarandi um birtuskil:</strong></p><p><font color="#0000ff"><em>&quot;Birtuskil</em> eða <em>andstæða</em> (e. contrast) segja til um 
birtuhlutfallið milli hvítasta hvíta litarins og svartasta svarta 
litarins.  Í sjónvarpstækjum er birtuskilum lýst sem hlutfalli eins og 
1200:1, 5000:1 eða 20.000:1 svo dæmi séu tekin. Í sjónvarpi með 
birtuskil 1200:1 er ljósstyrkur svartasta litarins sem hægt er að fá 
fram 1200 sinnum lægri en ljósstyrkur hins hvítasta.  Birtuskilin eru 
ekki síður mikilvæg en upplausnin því þau segir til um birtudýptina í 
myndinni&quot;.  </font></p><p>&nbsp;</p><p><strong><font color="#008000">Seljendur sjónvarpstækja: Takið ykkur nú á!&nbsp; Ef þið seljið einnig myndavélar þá verið þið að gæta ykkar á að rugla ekki saman hugtökum! Það er ekki traustvekjandi</font> </strong><img src="/js/tiny_mce/plugins/emotions/images/Woundering.png" border="0" align="absmiddle" /></p><p>&nbsp;</p><p>Veit einhver um sjónvarpsauglýsingu þar sem orðið <em>birtuskil </em>er notað?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Í auglýsingum og leiðbeiningum fyrir myndavélar virðist orðið þó yfirleitt vera rétt notað.</p><p>&nbsp;</p><p><font size="2"><strong>Vísindavefurinn:</strong> <em><u><a href="http://visindavefur.hi.is/svar.php?id=6944">Hvað er svartími og birtuskil í sjónvarpstækjum?</a></u></em></font></p><p><strong>Tölvuorðasafnið:</strong> <u><a href="http://tos.sky.is/tos/to/word/eng/1614/">Contrast: Birtuskil. </a></u></p><p>&nbsp;</p><p>&nbsp;Afsakið nöldrið... <img src="/js/tiny_mce/plugins/emotions/images/Smile.png" border="0" align="absmiddle" /></p><h1> </h1>]]></description>
            <pubDate>Tue, 02 Mar 2010 18:40:20 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Kjarnorkan virkjuð á Íslandi...?]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1019652/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1019652/?t=1266531455</guid>
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</p>

<p style="line-height: normal" class="MsoNormal"><font size="2"><span style="font-size: 12pt; font-family: 'Comic Sans MS'; color: #76923c">Geislavirknin er ótvíræð... Að minnsta kosti á sinn hátt á þessari rafmögnuðu mynd.... Myndin er tekin
laugardagskvöldið 1. febrúar 2003 á Canon PowerShot S230 stafræna vasamyndavél.
Lýsingartími var 15 sek og næmi 100 ISO.&nbsp; Tungl var ekki á lofti, en samt
var sæmilega ratbjart í birtu frá norðurljósum. Um 15&deg; frost var þegar myndin
var tekin.<br /><br /></span></font></p>

<p style="line-height: normal" class="MsoNormal"><font size="2"><span style="font-size: 12pt; font-family: 'Comic Sans MS'; color: #76923c">Fjallið er Bjarnarfell
og er Geysir rétt fyrir utan myndina til hægri.<br /><br /></span></font></p>

<p style="line-height: normal" class="MsoNormal"><font size="2"><span style="font-size: 12pt; font-family: 'Comic Sans MS'; color: #76923c">Norðurljósin myndast
þegar sólvindurinn skellur á efstu lögum lofthjúpsins, og er þetta því orka
sólar,&nbsp; -&nbsp; en er þetta sólin sem er undir fjallinu?&nbsp;&nbsp;&nbsp;
Féll hún af himnum ofan? <br /><br /></span></font></p>



<p style="line-height: normal" class="MsoNormal"><font size="2"><span style="font-size: 12pt; font-family: 'Comic Sans MS'; color: #76923c">Undir Bjarnarfelli við
Stalla er lítið gróðurhús. Það er lýst upp með háþrýsti natríumlömpum til að
búa til gervisólarljós. Húsið er hitað með vatni úr iðrum jarðar, og þar eru
ræktaðar agúrkur þó fimbulkuldi og skammdegi sé úti. Hvaðan kemur orkan til að
knýja þessa gervisól? Orkan kemur meðal annars frá sólinni, því sólin er
orkugjafi vatnsorkuvera. Án sólar væru engar ár til að virkja.&nbsp; Einnig er
það kjarnorka, því orkugjafi jarðgufuorkuvera er kjarnorka í iðrum jarðar.
Vatnsorkuver eru því nánast sólarorkuver og jarðgufuorkuver kjarnorkuver.
Hvaðan kemur svo orka sólar? Auðvitað er það hrein kjarnorka. &nbsp;Er þá ekki
vatnsorkuverið einnig óbeint að beisla kjarnorkuna?</span></font></p><p style="line-height: normal" class="MsoNormal"><font size="2"><span style="font-size: 12pt; font-family: 'Comic Sans MS'; color: #76923c"><br />Það má því segja að
þetta sé sólin sem er undir fjallinu, eða næstum því...<br /><br /></span></font></p>

<p class="MsoNormal" align="right"><font size="2"><span style="font-size: 12pt">...</span></font><font size="2"><span style="font-size: 12pt; font-family: 'Comic Sans MS'; color: #76923c">Vetrarnætur fjarri
byggð geta verið rafmagnaðar </span></font><img src="/js/tiny_mce/plugins/emotions/images/Halo.png" border="0" align="absmiddle" /></p><p class="MsoNormal" align="right">&nbsp;</p><p class="MsoNormal" align="right">&nbsp;</p><p class="MsoNormal" align="center"><font size="4" color="#c0c0c0">--- --- --- </font></p><p class="MsoNormal">&nbsp;</p><p class="MsoNormal">&nbsp;</p><p class="MsoNormal">&nbsp;</p><p class="MsoNormal"><font color="#999999">&nbsp;</font></p><p class="MsoNormal"><font size="1" color="#999999"><a href="/blog/agbjarn/day/2009/11/6/"><u>Sjálfbær nýting jarðhitans á Íslandi og kjarnorkunnar í iðrum jarðar</u>...</a></font></p><p class="MsoNormal"><font size="1" color="#999999"><a href="/blog/agbjarn/entry/414736/"><u>Norðurljósin og krúttlegir ísbirnir</u>...</a></font></p><p class="MsoNormal"><font size="1" color="#999999"><u><a href="/blog/agbjarn/entry/635171/">Kjarnorka á komandi tímum</a></u>... </font></p><p class="MsoNormal"><u><font size="1" color="#c0c0c0"><a href="http://www.hsorka.is/Kynningarefni/Grein_um_Sjalfbaerni_jardhitans_a_Reykjanesi.pdf"><u>Sjálfbærni
 jarðhitans á Reykjanesi</u></a></font></u></p>]]></description>
            <pubDate>Thu, 18 Feb 2010 22:17:35 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
        </item>
        <item>
            <!-- this entry has files: 
            
            -->
            <title><![CDATA[Danskir vísindamenn uppgötva vísbendingar um uppruna vatns á jörðinni...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1017835/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1017835/?t=1266050568</guid>
            <description><![CDATA[<div class="article">
						<p>&nbsp;</p><p>&nbsp;</p><p><img class="align_absmiddle" src="/users/fa/agbjarn/img/43403_800_490.jpg?img_id=960808" border="1" width="600" align="absmiddle" /></p><p>&nbsp;</p><p>Það hlýtur að teljast meiriháttar afrek að finna vatn umhverfis unga stjörnu sem er í 815 ljósára fjarlægð frá jörðu, en það hafa danskir vísindamenn einmitt gert samkvæmt nýlegri grein í danska blaðinu <a href="http://ing.dk/"><u><strong>Ingeniøren</strong></u></a>. Greinina má lesa <strong><a href="http://ing.dk/artikel/106239-dansk-opdagelse-giver-ny-viden-om-vands-tilblivelse-paa-jorden"><u>hér</u></a></strong> á vefsíðu blaðsins. </p><p>Þessi uppgötvun getur hugsanlega hjálpað okkur að skilja <u><a href="http://is.wikipedia.org/wiki/Hringr%C3%A1s_vatns#Uppruni_vatns_.C3.A1_j.C3.B6r.C3.B0inni">uppruna vatnsins</a></u> á jörðinni, en vatnið er undirstaða alls lífs.</p><p>Vísindamennirnir fundu mikið vatn umhverfis stjörnuna&nbsp; NGC1333-IRAS4B með litrófsmælingum. Til þess notuðu þeir sex stóra útvarpssjónauka sem eru við Grenoble í Frakklandi (sjá: <strong><a href="http://www.iram-institute.org/"><u>Institut de Radioastronomie Millimétrique</u></a></strong> en þar er frétt im málið: <em>Première localisation de l&rsquo;eau dans un système planétaire en formation</em>), en ekki venjulega sjónauka, þannig að það er ef til vill ekki alveg rétt að tala um litróf, en útvarpsbylgjur og ljós eru þó af sama meiði, þ.e. hvort tveggja rafsegulöldur.&nbsp; </p><p>Þetta er stjarna sem er að byrja að myndast úr geimryki. Umhverfis hana hefur fundist gríðarmikið magn af vatni sem vísindamennirnir hafa áætlað vera 100 sinnum meira en vatnið á jörðinni. </p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/43404_800_490.jpg?img_id=960809" border="1" width="600" align="absmiddle" /></div><p align="center">&nbsp;Hér má sjá hina ungu stjörnu <span>NGC1333-IRAS4B. Efst til vinstri má sjá fingrafar vatns í &quot;litrófinu&quot; sem <font color="#ff9900">gulan </font>topp ásamt merki&nbsp; frá lífrænum efnasamböndum sem <font color="#0000ff">bláa </font>toppa. Neðst til vinstri má sjá hvar vatnið var að finna.</span></p><p align="center">&nbsp;</p><p align="center">Myndin efst á síðunni sýnir hugmynd listamanns um hvernið þessi unga stjarna gæti litið út. Hugsanlega eiga reikistjörnur eftir að myndast í ryk-skífunni sem er umhverfis sólina. </p><p>&nbsp;</p><p><font size="1" color="#808080">Takk Albert Albertsson fyrir ábendinguna! </font></p><p align="center"><font size="4">&nbsp;--- --- ---</font></p><p>&nbsp;</p><p><strong><font color="#0000ff">&nbsp;Lesið alla greinina sem bloggarinn nappaði af vef <a href="http://ing.dk/mediehuset">Ingeniøren</a>:</font></strong></p><p>&nbsp;</p><p><font color="#000080">&nbsp;<u><a href="http://ing.dk/artikel/106239-dansk-opdagelse-giver-ny-viden-om-vands-tilblivelse-paa-jorden">http://ing.dk/artikel/106239-dansk-opdagelse-giver-ny-viden-om-vands-tilblivelse-paa-jorden</a></u></font></p><p><font size="3" color="#000080"><strong>Dansk opdagelse giver ny viden om vands tilblivelse på Jorden</strong></font></p>
<p class="summary">
	<font color="#000080"><strong>Astronomer fra Danmark har fundet vanddamp omkring en stjerne, der blev
 til under sidste istid. Opdagelsen kan vise sig at være med til at løse
 gåden om, hvordan vand blev til på vores planet.
</strong></font></p>

<p class="bodytext"><font color="#000080">
	Af
			<a href="mailto:taea@ing.dk%C2%A0">Thomas A. E. Andersen&nbsp;</a>,
	&nbsp;onsdag 10. feb 2010 kl. 10:07</font></p><p class="bodytext"><font color="#000080">Fundet af vanddamp omkring en ung stjerne 815 lysår fra Jorden kan måske
 være med til at forklare, hvordan vandet, som er grundlag for liv som 
vi kender det i dag, er kommet til Jorden.</font><br /><font color="#000080"><br />Det er en gruppe 
astronomer under ledelse af Jes Jørgensen fra Center for Stjerne og 
Planetdannelse ved Statens Naturhistoriske Museum i København og Bonn 
Universitet som har fundet store mængder vanddamp i den roterende gas- 
og støvskive omkring stjernen NGC1333-IRAS4B.<br /><br />Stjernen befinder 
sig 815 lysår fra Jorden og kan være forløberen for et planetsystem som 
vores eget solsystem.<br /><br /><strong>Mere end 100 gange vandet i alle 
verdenshave</strong><br />Ved hjælp af seks store radio-teleskoper placeret ved
 Grenoble i Frankrig, søgte astronomerne efter vand omkring den unge 
stjerne. <br /><br />Stjernen NGC1333-IRAS4B blev dannet for cirka 
10,000-50,000 år siden - samtidig med den sidste istid her på Jorden. 
Resultatet af observationerne viste, at der er en stor mængde vanddamp 
omkring<br />denne unge stjerne &ndash; og det befinder sig inden for et område 
svarende til afstanden mellem Solen og den yderste planet i vores 
solsystem, Neptun.<br /><br />Mængden af vand i skiven er langt større end 
hvad man tidligere har antaget - mere end 100 gange den samlede mængde 
vand i alle verdenshavene på Jorden. Ewine van Dishoeck fra Leiden 
Universitet i Holland, som er medforfatter på artiklen, siger i en 
pressemeddelse: <br /><br />&raquo;På grund af de lave temperaturer i 
molekyleskyen er det meste af vandet blevet til is før stjernen er 
blevet dannet, men i skiven tæt på den unge stjerne fordamper alt 
vandet, så vi kan observere det med vores radioteleskoper.&laquo;<br /><br /><strong>Kollapset
 molekylesky fik det til at regne</strong><br />Vand er grundlaget for liv som 
vi kender det på Jorden. En stor del af vandet i havene på Jorden 
stammer sandsynligvis fra verdensrummet. <br /><br />Solen og planeterne 
blev formentlig dannet for omkring 4.5 mia. år siden da en lille del af 
en sky af gas og støv i verdensrummet - en såkaldt molekylesky - faldt 
sammen på grund af dens egen tyngdekraft. <br /><br />I molekyleskyen var 
der også en lille del vand, som på en eller anden måde fandt vej til 
vores egen Jord. Helt præcist hvordan, er et af de store ubesvarede 
spørgsmål i studierne af livets oprindelse på Jorden.<br /><br />&raquo;Disse 
observationer har åbnet for en helt ny metode til at studere vand i unge
 solsystemer. De radiobølger, som vi kan observere med teleskoperne, gør
 det muligt for os at kigge meget dybere ind mod stjernen og dens skive,
 end det hidtil har været muligt. Vi kan dermed studere de fysiske og 
kemiske processer der har betydning for hvordan skiven udvikler sig og 
hvordan planeter bliver dannet,&laquo; siger Jes Jørgensen fra Center for 
Stjerne- og Planetdannelse ved Statens Naturhistoriske Museum.<br /><br />Jes
 Jørgensen har lige startet en ny gruppe ved Center for Stjerne- og 
Planetdannelse ved Statens Naturhistoriske Museum, som fokuserer på 
netop de spørgsmål. <br /><br />Han planlægger at benytte bl.a. ESO&rsquo;s 
kommende Alma-teleskop, som kan benyttes til at finde vand omkring mange
 unge stjerner og dermed fastlægge, om mængden af vand og hvor det 
befinder sig ændrer sig, mens stjernen bliver dannet.
</font></p><p class="bodytext">&nbsp;</p><div class="float-right">

					 <div style="text-align: center"><font color="#000080"><img class="align_left" src="http://ing.dk/modules/xphoto/cache/3/43403_200_200.jpg" border="1" width="250" /></font></div></div><div class="float-right"><div class="text"><font color="#000080">&nbsp;</font></div><div class="text"><font color="#000080">&nbsp;</font></div><div class="text"><font color="#000080">&nbsp;
		
</font><div class="text">
  <div align="center"><font size="1" color="#000080">
			En grafisk fremstilling af den unge stjerne NGC1333-IRAS4B.
Forskere går ud fra at planeter vil kunne dannes i skiven af støv og 
gas, der omgiver den unge stjerne. For første gang har de også kunne 
påvise, hvor store mængder vand der findes i sådan en skive. (Foto: 
NASA/JPLCaltech/R. Hurt-Spitzer Science Center)
    </font></div>

		</div>
</div><div class="text"><font color="#000080">&nbsp;</font></div><div class="text">&nbsp;</div><div class="text">&nbsp;</div><div class="text">&nbsp;</div><div class="text">&nbsp;</div><div class="text"><font color="#000080">&nbsp;</font></div>
																<div style="text-align: center"><font color="#000080"><img class="align_left" src="http://ing.dk/modules/xphoto/cache/4/43404_60_60.jpg" border="1" width="250" /></font></div><div style="text-align: center"><font color="#000080">&nbsp;</font></div><div style="text-align: center"><font size="1" color="#000080"><span>Den unge 
stjerne NGC1333-IRAS4B, hvor 
man øverst til venstre ser det spektrale fingeraftryk af vandmolekylet 
(gult) sammen med linjer fra komplekse organiske molekyler (blå). 
Nederst til venstre fordelingen af vand i skiven omkring den unge 
stjerne.</span></font> <font color="#000080"><br /></font>
</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;<font size="4"> --- --- ---</font></div><div style="text-align: left"><font color="#000080">&nbsp;</font></div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div>
						
	
	</div>



	<p class="bodytext"><font color="#800000"><em><font size="3"><strong><u>&nbsp;Ítarefni:</u></strong></font></em></font></p><p class="bodytext">&nbsp;</p><p class="bodytext">&nbsp;<strong class="lrg"><a href="http://www.iop.org/EJ/journal/apjl"><img src="http://ej.iop.org/icons/EJ4/Titles/2041-8205-708.gif" border="0" alt="The Astrophysical Journal Letters" /></a></strong></p><p class="bodytext"><u><a href="http://www.iop.org/EJ/abstract/2041-8205/710/1/L72">&nbsp;http://www.iop.org/EJ/abstract/2041-8205/710/1/L72</a></u></p><h2 class="abstitle">WATER VAPOR IN THE INNER 25 AU OF A YOUNG DISK 
AROUND A LOW-MASS PROTOSTAR<sup>*</sup>
      </h2>
<p id="citation"><span class="cite"><span class="cite_authors">Jes K. 
Jørgensen <em>et al</em></span> 2010 <em class="cite_journal_full">ApJ</em> <strong class="cite_volume">710</strong> L72-L76 &nbsp; doi: <a href="http://dx.doi.org/10.1088/2041-8205/710/1/L72">10.1088/2041-8205/710/1/L72</a></span>&nbsp;
      <a href="http://www.iop.org/EJ/help/-topic=abstract/abstract/2041-8205/710/1/L72"><img src="http://ej.iop.org/icons/EJ4/go_info.gif" border="0" alt="Help" align="absmiddle" /></a></p>
       
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    <br /><span class="absauth"> <a href="http://www.iop.org/EJ/search_author?query2=Jes%20K%2e%20J%f8rgensen&amp;searchfield2=authors&amp;journaltype=all&amp;datetype=all&amp;sort=date_cover&amp;submit=1" title="Find more articles by this author">Jes K. Jørgensen</a><sup>1,4</sup>
 and  <a href="http://www.iop.org/EJ/search_author?query2=Ewine%20F%2e%20van%20Dishoeck&amp;searchfield2=authors&amp;journaltype=all&amp;datetype=all&amp;sort=date_cover&amp;submit=1" title="Find more articles by this author">Ewine F. van Dishoeck</a><sup>2,3</sup></span><span class="absaffil"><br />
<sup>1</sup>  Argelander-Institut für Astronomie, University of Bonn, 
Auf dem Hügel 71, D-53121 Bonn, Germany<br />
<sup>2</sup>  Leiden Observatory, Leiden University, P.O. Box 9513, 
NL-2300 RA Leiden, The Netherlands<br />
<sup>3</sup>  Max-Planck Institut für extraterrestrische Physik, 
Giessenbachstrasse, D-85748 Garching, Germany<br />
<sup>4</sup>  Current address: Centre for Star and Planet Formation, 
Natural History Museum of Denmark, University of Copenhagen, Øster 
Voldgade 5-7, DK-1350 Copenhagen K, Denmark.<br />
E-mail: <a href="mailto:jes@snm.ku.dk">jes@snm.ku.dk</a> and <a href="mailto:ewine@strw.leidenuniv.nl">ewine@strw.leidenuniv.nl</a></span><span class="times"></span><p class="abspara">&nbsp;</p><p class="abspara"><strong class="abs_abstitle">ABSTRACT.</strong>
Water is one of the key molecules in the physical and chemical evolution
 of star- and planet-forming regions. We here report the first spatially
 resolved observation of thermal emission of (an isotopologue of) water 
with the Plateau de Bure Interferometer toward the deeply embedded Class
 0 protostar NGC 1333-IRAS4B. The observations of the H<sup>18</sup>
            <sub>2</sub>O 3<sub>1,3</sub>-2<sub>2,0</sub> transition at 
203.4 GHz resolve the emission of water toward this source with an 
extent of about 0<img src="http://ej.iop.org/icons/Entities/farcs.gif" border="0" alt="farcs" align="BOTTOM" />2 corresponding to the inner 25 AU (radius). The H<sup>18</sup>
            <sub>2</sub>O emission reveals a tentative velocity gradient
 perpendicular to the extent of the protostellar outflow/jet probed by 
observations of CO rotational transitions and water masers. The line is 
narrow, <img src="http://ej.iop.org/icons/Entities/ap.gif" border="0" alt="&asymp;" align="ABSMIDDLE" />1&nbsp;km&nbsp;s<sup>&ndash;1</sup>
 (FWHM), significantly less than what would be expected for emission 
from an infalling envelope or accretion shock, but consistent with 
emission from a disk seen at a low inclination angle. The water column 
density inferred from these data suggests that the water emitting gas is
 a thin warm layer containing about 25 <em>M</em>
            <sub>Earth</sub> of material, 0.03% of the total disk mass 
traced by continuum observations.</p><p><span class="times"><em>Key 
words:</em>
	  <a href="http://www.iop.org/EJ/search/2041-8205?submit=1;searchfield1=keyword;query1=aas/2-2f4/astrochemistry;journaltype=limit;journals=2041-8205,1538-4357,1538-3881,0067-0049,0004-637X;sort=date_cover;datetype=all">astrochemistry</a>;
 <a href="http://www.iop.org/EJ/search/2041-8205?submit=1;searchfield1=keyword;query1=aas/9-2f1/ISM%3a%20abundances;journaltype=limit;journals=2041-8205,1538-4357,1538-3881,0067-0049,0004-637X;sort=date_cover;datetype=all">ISM:
 abundances</a>; <a href="http://www.iop.org/EJ/search/2041-8205?submit=1;searchfield1=keyword;query1=aas/9-2f26/ISM%3a%20individual%20objects;journaltype=limit;journals=2041-8205,1538-4357,1538-3881,0067-0049,0004-637X;sort=date_cover;datetype=all">ISM:
 individual objects</a> (<a href="http://www.iop.org/EJ/search/2041-8205?submit=1;searchfield1=keyword;query1=aas/9-2f26/NGC_1333_IRAS4B/ISM%3a%20individual%20objects%20%28NGC%201333%2dIRAS4B%29;journaltype=limit;journals=2041-8205,1538-4357,1538-3881,0067-0049,0004-637X;sort=date_cover;datetype=all">NGC
 1333-IRAS4B</a>); <a href="http://www.iop.org/EJ/search/2041-8205?submit=1;searchfield1=keyword;query1=aas/7-2f35/protoplanetary%20disks;journaltype=limit;journals=2041-8205,1538-4357,1538-3881,0067-0049,0004-637X;sort=date_cover;datetype=all">protoplanetary
 disks</a>; <a href="http://www.iop.org/EJ/search/2041-8205?submit=1;searchfield1=keyword;query1=aas/8-2f23/stars%3a%20formation;journaltype=limit;journals=2041-8205,1538-4357,1538-3881,0067-0049,0004-637X;sort=date_cover;datetype=all">stars:
 formation</a></span>
<span class="times"><p><span class="times"><sup>*</sup> Based on 
observations carried out with the Institut de Radioastronomie 
Millimétrique (IRAM) Plateau de Bure Interferometer. IRAM is supported 
by INSU/CNRS (France), MPG (Germany), and IGN (Spain).</span></p></span></p><p><span class="absdates">Print publication: Issue 1 (2010 February 10)</span><br /><span class="absdates">Received 2009 October 18, accepted for publication 
2010 January 7<br />
Published 2010 January 22</span></p><p>&nbsp;</p><p><strong><font color="#ff0000">&nbsp;</font></strong><font size="2" color="#ff0000"><strong>Reyna má að nálgast sjálfa greinina</strong> <u><strong><a href="http://arxiv.org/PS_cache/arxiv/pdf/1001/1001.1532v1.pdf">hér</a></strong></u>.</font></p></div>]]></description>
            <pubDate>Sat, 13 Feb 2010 08:42:48 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Norðurljós og fegurð næturinnar...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1015706/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1015706/?t=1265558714</guid>
            <description><![CDATA[<p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/nordurljos_haust_2009_1600w_d.jpg?img_id=958743" border="0" alt="Norðurljós 2009" title="Norðurljós 2009" width="650" align="absmiddle" /></div><p style="line-height: 200%">&nbsp;</p> <p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">
<font face="Comic Sans MS" size="4" color="#008000">Undarleg tilfinning fylgir 
því að standa undir stjörnubjörtum himni fjarri ljósmengun þéttbýlisins. Þá 
finnur maður til smæðar sinnar og hugur fullorðna barnsins fer á flug... Hvað er 
þarna uppi? Er einhver þarna að horfa niður til okkar, eða þannig? Ætti ég að 
prófa að senda honum kveðjur og veifa?</font></p>
<p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</p>
<p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">
<font face="Comic Sans MS" size="4" color="#008000">Humm... hugsar
maðurinn með barnshjartað agndofa þar sem hann stendur einn úti í
nóttinni undir ægifögrum stjörnuhimninum.&nbsp; Tekur það ekki kveðjuna
nokkur ár að berast til næstu stjarna eins og Proxima Centauri í
Mannfáknum, og enn lengri tíma til annarra stjarna? &nbsp; &nbsp; &nbsp;
Jamm..., við getum þó að minnsta hugsað hlýlega til þessara geimvera,
enda erum við víst sjálf einnig geimverur... <br />
&nbsp;</font></p>
<p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">
<font face="Comic Sans MS" size="4" color="#008000">Þarna uppi eru milljónir 
milljóna stjarna og umhverfis margar svífa reikistjörnur. Sumar með lífi, 
jafnvel vitsmunalífi eins og á okkar reikistjörnu sem við nefnum Jörð. Þarna 
uppi eru stjörnumerkin sem gefa himninum líf, eins og Stóri Björn eða 
Karlsvagninn sem sjá má efst á myndinni.</font></p>
<p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</p><p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt"><font face="Comic Sans MS" size="4" color="#008000"><em>&quot;Landslag væri lítils virði 
ef það héti ekki neitt&quot;</em>, kvað Tómas. Eins er það með næturhimininn. Um leið og 
litli maðurinn lærir nöfn á nokkrum stjörnumerkjum öðlast himininn líf. Hann fer 
að verða vinur manns. Vinur sem alltaf er nærri á dimmum vetrarkvöldum.</font></p><p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</p>
<p style="line-height: 200%; margin-top: 0pt; margin-bottom: 0pt">
<font face="Comic Sans MS" size="4" color="#008000">Enn undarlegri verður 
tilfinningin þegar himininn logar í norðurljósum sem sýna okkur dans sem þeim 
einum er lagið. Norðurljósin koma frá okkar eigin stjörnu, hinnar einu sönnu 
dagstjörnu sem veitir okkur birtu og yl.&nbsp; Eins konar himnasending sem 
sólvindurinn ber til hinna örsmáu jarðarbúa sem halda að þeir séu í miðju 
alheimsins... </font></p>
<p>&nbsp;</p><p style="line-height: 200%">&nbsp;</p><p style="line-height: 200%"><font size="1" color="#808080">Smella má tvisvar á myndina til að stækka. </font></p><p style="line-height: 200%"><font color="#808080"><font size="1">Myndin er tekin síðastliðið haust nærri Geysi með Canon EOS 400D / 17-85mm.&nbsp;</font>&nbsp;</font></p><font size="1"><br /><u><a href="/blog/agbjarn/entry/414736/">Norðurljósin og krúttlegir ísbirnir</a></u><a href="/blog/agbjarn/entry/414736/">...</a><br /><br /><a href="/blog/agbjarn/entry/939943/"><u>Ljósmengun í þéttbýli og dreifbýli</u>...</a></font><br />]]></description>
            <pubDate>Sun, 07 Feb 2010 16:05:14 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Stefnir greinilega í El-Nino ár eins og 1998 - Hlýtt sumar í vændum...?]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1014789/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1014789/?t=1265351039</guid>
            <description><![CDATA[<p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/uah_lt_1979_thru_jan_10.jpg?img_id=957940" border="1" alt="UAH-MSU jan 2010" title="UAH-MSU jan 2010" width="600" /></div><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;Nú virðist allt stefna í metár eins og árið 1998, en þá rauk hitinn upp í nokkra mánuði eins og sjá myndinni hér fyrir ofan, og náði hámarki í febrúar það ár. Síðastliðna mánuði hefur meðalhiti lofthjúps jarðar rokið upp eins og raketta, eins og sjá má lengst til hægri á ferlinum, og ekkert lát virðist á.</p><p>Þetta er ekki opinber ferill, en hann er fenginn af <u><a href="http://www.drroyspencer.com/2010/02/january-2010-uah-global-temperature-update-0-72-deg-c/">bloggsíðu Dr. Roy Spencer loftslagsfræðings</a></u> sem sér um úrvinnslu <u><a href="http://vortex.nsstc.uah.edu/public/msu/t2lt/tltglhmam_5.2">hitamæligagna</a></u> frá gervihnöttum. Hann birtir oft mæliniðurstöður áður en þær hafa alveg verið sannreyndar og birtar opinberlega, enda hæg heimatökin.&nbsp;</p><p>Hann segir m.a. á bloggsíðu sinni:</p><p><font color="#800000">&quot;The global-average lower tropospheric temperature anomaly soared to <strong>+0.72 deg. C in January, 2010</strong>.  This is the warmest January in the 32-year satellite-based data record.</font></p>
<p><font color="#800000">The tropics and Northern and Southern Hemispheres were all well
above normal, especially the tropics where El Nino conditions persist.
Note the global-average warmth is approaching the warmth reached during
the 1997-98 El Nino, which peaked in February of 1998.</font></p><p><font color="#800000">This record warmth will seem strange to those who have experienced an
unusually cold winter. While I have not checked into this, my first
guess is that the atmospheric general circulation this winter has
become unusually land-locked, allowing cold air masses to intensify
over the major Northern Hemispheric land masses more than usual. Note
this ALSO means that not as much cold air is flowing over and cooling
the ocean surface compared to normal....</font><font color="#800000">&quot;</font></p><p>&nbsp;</p><p>Eigum við von á einstaklega hlýju sumri með hjálp El-Niño? &nbsp; Sums staðar erlendis, en ekki endilega hér á landi því Kyrrahafið er ekki beinlínis nærri okkur. Eru ekki öll sumur á Íslandi góð? <img src="/js/tiny_mce/plugins/emotions/images/Smile.png" border="0" width="19" height="19" align="absmiddle" /></p><p>&nbsp;</p><p><u><a href="http://is.wikipedia.org/wiki/El_Ni%C3%B1o">El-Niño</a></u> (El-Ninjo) þýðir <em><u><a href="http://library.thinkquest.org/20901/name_meaning.htm">barnið</a></u> </em>(jafnvel Jesú sem barn - Jólabarnið) og er fyrirbæri í Kyrrahafinu. </p><p>&nbsp;</p><p><font size="1"><u><a href="http://www.drroyspencer.com/2010/02/january-2010-uah-global-temperature-update-0-72-deg-c/">Vefsíða Dr. Roy Spencer.</a></u></font></p><p><font size="1"><u><a href="http://wattsupwiththat.com/2010/02/04/january-uah-global-temperature-warmest/">Umræður má finna á vefsíðu Antony Watts.</a></u></font></p><p>&nbsp;</p><p><font size="1"><u><a href="http://www.cpc.ncep.noaa.gov/products/predictions/90day/fxus05.html">Spá NOAA fyrir EL-l-Nino jan 2010</a></u><br /></font></p><font color="#000080"><font size="1"><font color="#008000">&quot;STRONG EL NINO CONDITIONS CURRENTLY EXIST IN THE TROPICAL PACIFIC. THIS WARM EVENT IS EXPECTED TO PERSIST (THOUGH GRADUALLY WEAKEN) INTO AT LEAST EARLY&nbsp; BOREAL SPRING 2010,....&quot;<br /></font><br /></font></font>]]></description>
            <pubDate>Fri, 05 Feb 2010 06:23:59 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Litlir vinir á lækjarbakka...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1012141/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1012141/?t=1264837617</guid>
            <description><![CDATA[<p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/litlir_vinir_a_laekjarbakka.jpg?img_id=955845" border="0" width="600" /></div> <br /><br /><p style="line-height: 200%; margin-top: 0px; margin-bottom: 0pt">
<font face="Lucida Calligraphy" size="4" color="#666600">Þessum vinum mætti ég 
einn fagran haustdag á liðnu ári. Sumri var tekið að halla og vetur í nánd. 
Einhver undarleg ró hvíldi yfir öllu eftir amstur sumarsins sem hafði verið 
einstaklega milt og fallegt. Eiginlega kom það á óvart hve spakir þessi fallegu 
stálpuðu heiðlóuungar voru á árbakkanum. Engu var líkara en þeir könnuðust við mig og 
vissu að ekkert væri að óttast, þó risinn ég væri svo sem þúsundfalt þyngri en 
þeir. Vissulega voru það ekki bara tveir vinir sem þarna hittust á árbakkanum 
fallega í lok sumars, heldur þrír vinir sem nutu þess að vera til.</font></p>
<p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p><font color="#999999"><strong><em>Uppfært 31. jan og 10. feb:</em></strong>&nbsp; Sjá athugaemdir. Líklega eru þetta stálpaðir lóuungar en ekki auðnutittlingar eins og fyrst stóð í textanum en hefur nú verið leiðrétt :-)</font></p><br /><p><font size="1">&nbsp;<u><a href="http://www1.nams.is/fuglar/">Fuglavefurinn</a></u></font></p><p><font size="1" color="#999999"><font color="#c0c0c0">Myndin er tekin 4. október 2009 við Almenningsá í Bláskógabyggð með CANON EOS 400D / Canon 17-85 mm IS. Ramminn er gerður með Photoshop Elements 8. Myndina má stækka með því að tvísmella á hana.</font><br /></font></p>]]></description>
            <pubDate>Sat, 30 Jan 2010 07:46:57 GMT</pubDate>
            <category><![CDATA[Vinir og fjölskylda]]></category>
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            <title><![CDATA[Er ný ísöld yfirvofandi? - Kenning Milankovitch...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1009730/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1009730/?t=1264343260</guid>
            <description><![CDATA[<p>&nbsp;</p><p><img class="align_left" src="/tn/250/users/fa/agbjarn/img/milankovitch.jpg?img_id=954422" border="1" alt="milankovitch.jpg" title="milankovitch.jpg" align="left" /><font color="#800000">Það getur verið fróðlegt að skoða hvaða hugmyndir menn hafa um veðurfar fyrir óralöngu, og hvernig menn hafa reynt að skýra ástæður fyrir gríðarmiklum loftslagsbeytingum sem valdið hafa ísöldum og hlýskeiðum á víxl.</font></p><p><font size="1">(Þó svo að losun manna á CO2 og meint hnatthlýnum af völdum þess sé mikið hitamál, þá fjallar þessi pistill <strong>alls ekki</strong> um slíkt. Lesendur eru beðnir um að hafa það í huga).</font></p><p>Fyrir um 12 árum, árið <strong>1998</strong>,&nbsp; &quot;bloggaði&quot; pistilshöfundur um áhrif sólar o.fl. á veðurfar. Þessi langi pistill <strong>&quot;CO2 - Er jörðin að hitna? - Ekki er allt sem sýnist&quot;</strong>&nbsp; byrjar <a href="http://www.agust.net/sol/"><strong><u>hér</u></strong></a>. og heldur síðan áfram á <a href="http://www.agust.net/sol/#itarefni"><u>9. síðum</u></a> alls.&nbsp; Einn kaflinn nefnist <strong>&quot;Áhrif innbyrðis afstöðu jarðar og sólar á hitastig. Ísaldir og önnur óáran. Rannsóknir á Grænlandsjökli&quot;&nbsp; </strong>og er hægt að komast inn á hann <a href="http://www.agust.net/sol/sol-milankovitch.htm"><u><strong>hér</strong></u></a>. Það sem hér er birt er hluti þess kafla.&nbsp;&nbsp; Hafa verður í huga að þessum gamla pistli hefur lítið sem ekkert verið breytt í rúman áratug, þannig að margar vefkrækjur eru óvirkar.<br /><br />Hér á eftir er styttur&nbsp; <strong>útdráttur</strong> úr þessum kafla vefsíðunnar sem m.a. fjallar um kenningar Milankowitch. Gamli textinn er með <font color="#800000">brúnum</font> lit.</p><p>Allur kaflinn um Milankowitch er <a href="http://www.agust.net/sol/sol-milankovitch.htm"><u><strong>hér.</strong></u></a><u><a href="http://www.agust.net/sol/sol-milankovitch.htm"></a></u></p><p><br /><font color="#000000">Myndin hér að ofan er af </font><font color="#000000"><a href="http://en.wikipedia.org/wiki/Milutin_Milankovi%C4%87"><strong><u>Milutin Milankovitch</u></strong></a> (1879-1958) sem var serbneskur verkfræðingur og jarðeðlisfræðingur. (Hann er reyndar stundum titlaður stærðfræðingur eða stjörnufræðingur). Hann er þekktastur fyrir <a href="http://en.wikipedia.org/wiki/Milankovitch_cycles"><u>kenningar</u></a> sínar um orsakir mikilla kuldaskeiða sem koma með um 100 þúsund ára millibili.&nbsp;<em> </em></font></p><p><font color="#000080"><em><font size="1">(Það er svo annað mál, að það er dálítil ónákvæmni að tala um þessar
ísaldir, því eiginlega lifum við á hlýskeiði alvöru ísaldar, eða
meginísaldar (Sjá <a href="http://en.wikipedia.org/wiki/Greenhouse_and_icehouse_Earth"><u>Icehouse/Hothouse</u></a> eða <a href="http://www.astrobio.net/exclusive/3320/from-greenhouse-to-icehouse"><u>Icehouse/Greenhouse</u></a>), sem skiptist í um 100.000 ára kuldaskeið og 10.000 ára
hlýskeið. Kuldaskeiðin, sem við leyfum okkur að kalla meginísaldir, eru því&nbsp; ástand sem varir í kannsk í 100 milljónir ára eða svo. Í þessum pistli látum við orðið &quot;ísöld&quot; standa fyrir 100.000 ára kuldaskeiðin eins og í gamla pistlinum, enda er það í samræmi við hefð).</font><br /></em></font></p><p>&nbsp;</p><p>--- </p><p><font color="#808080"><strong>Gamli pistillinn frá 1998 (styttur):</strong></font></p><p>&nbsp;</p><div align="center"><font size="4"><em><strong><font color="#800000">Áhrif innbyrðis afstöðu jarðar og sólar á hitastig.</font><br /><font color="#800000">Ísaldir og önnur óáran</font><br /><font color="#800000">Rannsóknir á Grænlandsjökli. </font></strong></em></font><br /><font size="1">(Síðasti hlutinn er aðeins í frumtextanum)</font><br /></div><p><font color="#800000"><br /><font size="3">Árið 1941 setti stærðfræðingurinn Milutin Milankovitch fram kenningu sem skýrt getur hvers vegna mikil kólnun verður með tiltölulega löngu millibili. <strong>Hann reiknaði út samanlögð áhrif breytinga á <font color="#ff0000"><font color="#800000">möndulhalla (obliquity, </font><font color="#800000">41.000 ára sveifla), möndulveltu (precession, sbr. skopparakringlu, </font><font color="#800000">19-21.000 ára sveifla) og sporöskjulögun brautar jarðar umhverfis sólu </font><font color="#800000">(eccentricity, 100.000 ára sveifla).</font></font></strong></font><br /><br />Niðurstaðan sýnir hvenær líkur eru á köldum og heitum tímabilum, og að á kuldaskeiðum fá staðir á 60&deg;N aðeins sama varma frá sólinni (insolation) og staðir á 80&deg;N fá nú!<br /><br />Áhrif möndulveltu og möndulhalla gera það að verkum, að annað slagið hallar jörðin lítið móti sólu að sumri til, og verður sumarhitinn [á norðurslóðum] því lágur.<br /><br />Síðari rannsóknir sýna að fjöldi smærri áhrifa hefur áhrif á heildarmyndina, en kenning Milankovitch er samt sem áður mjög áhugaverð og vel þekkt.</font></p><p>&nbsp;</p><p>&nbsp;</p><p><font color="#800000"><strong>Kenning Milankowitch:</strong></font></p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/milankowitch-ahb_edited-1_954529.jpg?img_id=954529" border="0" alt="milankowitch-ahb_edited-1_954529.jpg" title="milankowitch-ahb_edited-1_954529.jpg" align="absmiddle" /></div><div align="center"> Ferillinn á myndinni nær 200.000 ár aftur í tímann og 100.000 ár fram í tímann<br /></div><br /><p><font color="#800000"><br />Kenning Milutin Milankovitch um ástæður ísalda er vel þekkt. Með útreikningum er hægt að finna mismunandi hitunaráhrif sólar á norðurhvel jarðar. Möndulhalli, möndulvelta og braut jarðar breytast með tímanum.<br /><br />Á myndinni hér að ofan sjáum við hvernig þessir þrír þættir leggjast saman og mynda samsetta ferilinn sem er neðst. Tímaskalinn nær 200.000 ár aftur í tímann og 100.000 ár fram í tímann. (Lóðrétti ásinn er merktur: Wött á fermetra á 60&deg;N)<br /><br /><strong>Jæja, hvenær megum við eiga von á næstu ísöld samkvæmt þessari kenningu?</strong><br /><br />Eins og mörgum er kunnugt, þá virðist sem ísaldir hafi skollið á með litlum fyrirvara á aðeins nokkrum áratugum. Rannsóknir á borkjörnum frá Grænlandsjökli hafa leitt þetta í ljós. Getur verið að sólin hafi komið þar nærri og hjálpað til við að setja ferlið af stað með langvarandi kuldakasti á sama tíma og afstaða jarðar og sólar var óhagstæð samkvæmt líkani Milankovitch?<br /><br />&nbsp;<br /><strong>Hvað ber framtíðin í skauti sér, hlýnun eða kólnun?....</strong><br />Náttúrulegar breytingar, sem eru vel þekktar, hafa vafalaust ekki stöðvast. Við þekkjum vel hagstæð tímabil í jarðsögunni, með smávægilegum hitasveiflum upp á við og köldum tímabilum þess á milli. Við þekkjum einnig miklar ísaldir, sem koma með nokkuð reglulegu millibili.<br /><br />Fyrir um 1000 árum var mikið góðæri í heiminum. Það stóð aðeins í tiltölulega stuttan tíma (~200 ár). Síðan tók við langt tímabil með nokkuð köldu veðurfari; &quot;Litla ísöldin&quot;. Rannsóknir á sólstjörnum, sem líkjast okkar sól, gefa til kynna að tímabil þar sem sólin er í lægð (&quot;Maunder minimum&quot;), eru algeng fyrirbæri. Stjarneðlisfræðingar hafa í alvöru varað við því að nýtt &quot;Maunder minimum&quot; geti hafist í okkar sól hvenær sem er, jafnvel á næstu öld. Það þýðir nýtt kuldakast og mikinn hafís umhverfis Ísland. Þá mundi aukið magn CO2 í andrúmsloftinu hafa kærkomin áhrif á hitastig til að vinna á móti þessu. Það er að segja, ef áhrif CO2 til hækkunar hitastigs reynast nægileg.<br /><br />Raunverulegar ísaldir koma með nokkuð reglulegu millibili. Við þessu getum við ekkert gert. Bara beðið eftir næstu ísöld!<br />Sé litið til lengri tíma er víst að ný ísöld komi og landið hverfi undir ís. Svo virðist sem hlýindaskeið, eins og nú ríkir, séu fremur undantekning, og að ísöld sé eðlilegra ástand. Við sjáum það á ferlinum, sem nær yfir 900.000 ár, að hitastigið er yfirleitt lægra en nú á dögum (lárétta línan), og oft miklu lægra.<br /><br /><strong>Vel getur verið að við séum að nálgast lok núverandi hlýindaskeiðs, sem þegar hefur staðið yfir í um 10.000 ár. Ef til vill eru ekki nema nokkrar aldir til næstu ísaldar. Ef til vill fáein þúsund ár.</strong><br /><br /></font></p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/hiti_900-000_ar_965572.jpg?img_id=965572" border="0" width="500" align="absmiddle" /></div><p>&nbsp;</p><p align="center"><font size="1">(Á neðsta ferilinn vantar síðstu áratugina og ætti ferillinn að rísa þar. Við erum að skoða tímabil <br />sem nær yfir&nbsp; næstum milljón ár, svo það skiptir litlu máli. Við höfum hér áhuga á megindráttunum, en ekki smáatriðum. Ferillinn er uphaflega frá IPCC 1990).</font></p><p>&nbsp;</p><p><font color="#800000">Myndin sýnir í stórum dráttum hitafar síðustu 900.000 ára. Strikaða viðmiðunarlínan er sett á hitastig, sem var um 1900. Oftast hefur verið mun kaldara en þá. Takið eftir, að hitasveiflurnar eru miklu meiri en virðist við fyrstu sýn. Hitaskalinn nær yfir aðeins 2 gráður á neðsta ferlinum, en 7-8 gráður á efri ferlunum.<br /><br />Þegar á allt er litið, getum við ekki annað en verið þakklát náttúrunni fyrir það hve mjúkum höndum hún fer um okkur þessa áratugina. </font></p><p align="center">&nbsp;--- --- ---</p><p align="center">&nbsp;</p><p>Meira hér: <u><a href="http://www.agust.net/sol/sol-milankovitch.htm">www.agust.net/sol/sol-milankovitch.htm</a></u></p><p><font size="1" color="#808080">Myndirnar sem fylgja pistlinum voru fengnar einhvers staðar að láni og textinn á þeim þýddur 1998. Upphaflega myndin er mun eldri. </font></p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p align="center"><u><a href="/blog/agbjarn/entry/1009730/?preview=1"><strong>Áhrif innbyrðis afstöðu jarðar og sólar á hitastig.<br />Ísaldir og önnur óáran. Rannsóknir á Grænlandsjökli</strong></a></u></p><p align="center">&nbsp;</p><p align="center">&nbsp;<u><a href="http://www.agust.net/sol/"><strong>CO2 - Er jörðin að hitna? - Ekki er allt sem sýnist.</strong></a></u></p>]]></description>
            <pubDate>Sun, 24 Jan 2010 14:27:40 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Misskilningurinn mikli: Bráðnun jökla Himalajafjalla orðum aukinn...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1008012/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1008012/?t=1263968067</guid>
            <description><![CDATA[<p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/800px-tibet_midui_glacier_autumn_colour.jpg?img_id=953292" border="1" width="500" align="absmiddle" /></div> <br /><p>&nbsp;</p><p>&nbsp;</p><p><font size="2">Í skýrslu <u><a href="http://www.ipcc.ch/">Loftslagsnefndar Sameinuðu þjóðanna</a></u> frá árinu 2007 er nánast fullyrt að jöklar Himalajafjalla verði horfnir árið 2035 eða fyrr. </font><font size="2" color="#008080"><em>&quot;Glaciers in the Himalaya are receding faster than in any 
other part of the world and, if the present rate continues, the likelihood 
of them disappearing by the year 2035 and perhaps sooner is very high if the 
Earth keeps warming at the current rate.&quot;</em><strong><em>
</em></strong></font><font size="2"> Þessar fullyrðingar eru byggðar á stórfurðulegum misskilningi sem óhjákvæmilega fær menn til að staldra við og íhuga hvort allt sé með felldu hjá þessari virtu stofnun, <strong>International Panel of Climate Change - IPCC</strong>. Málið teygir sig jafnvel til <strong>Íslands </strong>eins og sjá má hér fyrir neðan. Einhverjir muna eftir upphlaupinu í nóvember síðastliðnum þegar Rajendra Pachauri verkfræðingur og forstöðumaður IPCC ásakaði Indverska umhverfisráðuneytið um hroka. Sjá <u><a href="http://www.guardian.co.uk/environment/2009/nov/09/india-pachauri-climate-glaciers">hér</a></u>. </font></p><p>Fréttamiðlar víða um heim hafa fjallað um máið og verður hér vísað á nokkra þeirra:</p><p>Á vefsíðunni <font size="4"><strong>Vísir.is</strong></font> er fjallað um málið 18. janúar. Þar segir:</p><p> <a href="http://www.visir.is/article/20100118/FRETTIR02/877981067"><u>http://www.visir.is/article/20100118/FRETTIR02/877981067</u></a></p><p><font color="#0000ff"><strong>&quot;Bullspár um bráðnun jökla:<br /></strong></font></p><p><font color="#0000ff">Fullyrðingar Loftslagsnefndar Sameinuðu þjóðanna um að jöklar
Himalayafjalla verði að mestu horfnir árið 2035 eða jafnvel fyrr eru á
byggðar á furðulegum misskilningi og vísindalegum mistökum að sögn
vefsíðu breska blaðsins The Times. </font></p><p><font color="#0000ff">Tvö ár eru síðan
Loftslagsnefnd Sameinuðu þjóðanna setti fram þessa geigvænlegu spá.
Þetta er sama nefndin og stóð fyrir Loftslagsráðstefnunni í
Kaupmannahöfn á dögunum. Því var haldið fram að spáin væri byggð á
nýjustu og ítarlegustu rannsóknum sem fyrir lægju um
loftslagsbreytingar. </font></p><p><font color="#0000ff">Þetta var kallað tímamótaspá sem tæki af allan vafa um hlýnun jarðar af mannavöldum. </font></p><p><font color="#0000ff"><font color="#800080">Nú
hefur komið í ljós að í raun var spáin byggð á stuttu símtali sem
blaðamaður á tímaritinu New Scientist átti við lítt þekktan indverskan
vísindamann fyrir níu árum. New Scientist er tímarit um tækni og
vísindi fyrir almenning.</font> </font></p><p><font color="#0000ff">Indverski vísindamaðurinn Syed Hasnian
hefur viðurkennt að hann hafi aðeins verið með vangaveltur um bráðnun
jöklanna. Engar formlegar rannsóknir hafi legið þar að baki. </font></p><p><font color="#0000ff">Erfitt er að útskýra hvernig í ósköpunum Loftslagsnefndin ákvað allt í einu að taka þessu sem heilögum sannleika. </font></p><p><font color="#0000ff">Rétt
er að geta þess að jöklafræðingar tóku spá Loftslagsnefndarinnar með
mikilli vantrú á sínum tíma. Hún varðist hinsvegar með kjafti og klóm.</font></p><p><font color="#800080">Rajendra
Pachauri formaður nefndarinnar kallaði gagnrýni á spána &bdquo;voodoo
vísindi&quot;. Þegar umhverfisráðherra Indlands lýsti efasemdum um spána
sagði Pachairi að það lýsti miklum hroka. </font></p><p><font color="#0000ff">The Times telur líklegt að að minnsta kosti Himalaya-hluti heimsendaspárinnar verði dreginn til baka&quot;. </font></p><p>&nbsp;</p><p>&nbsp;<strong>Nokkrar tilvísanir í aðra fjölmiðla þar sem lesa má um málið:</strong></p><p>&nbsp;---</p><p><strong>Dagens Nyheter í Svíþjóð:</strong></p><p>&nbsp;<img src="http://www.dn.se/img/dn/dnse-medals.gif?10987" border="0" alt="Välkommen till DN.se" title="Utsedd till Sveriges bästa och snyggaste nyhetssajt" /></p><p>&nbsp;<a href="http://www.dn.se/nyheter/vetenskap/fn-rapport-om-glaciarer-felaktig-1.1029731"><u>http://www.dn.se/nyheter/vetenskap/fn-rapport-om-glaciarer-felaktig-1.1029731</u></a></p><p><font color="#000080"><strong>FN-rapport om glaciärer felaktig</strong><br /><br /></font><font size="1" color="#000080">Uppdaterat 2010-01-19 17:26. Publicerat 2010-01-19 15:05</font><font color="#000080"><br /><br />En rapport som använts av FN:s klimatpanel (IPCC) om att Himalayas glaciärer kan vara borta år 2035 har visat sig vara ren spekulation. Forskaren bakom påståenden erkänner nu att han bara gissat och inte använt sig av vetenskapliga fakta.&nbsp; [Meira...]</font></p><p>---</p><p><font size="4"><strong>Frá Canada.com:</strong></font></p><p><a href="http://www.canada.com/technology/climate+report+Scientist+warned+glacier+forecast+wrong/2455973/story.html"><u>&nbsp;http://www.canada.com/technology/climate+report+Scientist+warned+glacier+forecast+wrong/2455973/story.html</u></a></p><p><strong>&nbsp;<font color="#0000ff">UN climate report: Scientist warned glacier forecast was wrong</font></strong><font color="#0000ff"><br />&nbsp;<br /></font><font size="1" color="#0000ff">By Marlowe Hood, Agence France-PresseJanuary 18, 2010</font></p><p><font color="#0000ff">PARIS - A top scientist said Monday he had warned in 2006 that a
prediction of catastrophic loss of Himalayan glaciers, published months
later by the UN's Nobel-winning climate panel, was badly wrong.</font></p><p><font color="#0000ff">The
Intergovernmental Panel on Climate Change (IPCC) report said in 2007 it
was &quot;very likely&quot; that the glaciers, which supply water to more than a
billion people across Asia, would vanish by 2035 if global warming
trends continued.</font></p><p><font color="#0000ff">&quot;This number is not just a little bit
wrong, but far out of any order of magnitude,&quot; said Georg Kaser, an
expert in tropical glaciology at the University of Innsbruck in Austria.</font></p><p><font color="#0000ff">&quot;It is so wrong that it is not even worth discussing,&quot; he told AFP in an interview....</font></p><p><font color="#0000ff">Kaser was a lead author in Working Group I of the IPCC report, which dealt with the physical science of climate change....</font></p><p><font color="#0000ff">&quot;This is a source of a lot of misunderstandings, misconceptions or
failures,&quot; Kaser said, noting that some regions lacked a broad spectrum
of expertise.</font></p><p><font color="#0000ff"><strong>&quot;It is a kind of amateurism from the
regional chapter lead authors. They may have been good hydrologists or
botanists, but they were without any knowledge in glaciology.&quot;</strong>&nbsp; [Meira...]</font></p><p>---</p><p>&nbsp;</p><p><a href="http://timesofindia.indiatimes.com/"><img src="http://timesofindia.indiatimes.com/photo/4466952.cms" border="0" alt="The Times of India" title="The Times of India" hspace="2" vspace="10" width="200" height="17" align="left" /></a></p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;<u><a href="http://timesofindia.indiatimes.com/india/Ramesh-turns-heat-on-Pachauri-over-glacier-melt-scare/articleshow/5474586.cms">http://timesofindia.indiatimes.com/india/Ramesh-turns-heat-on-Pachauri-over-glacier-melt-scare/articleshow/5474586.cms</a></u></p><p><font color="#000080"><strong>Ramesh turns heat on Pachauri over glacier melt scare</strong><br /></font><font size="1" color="#000080">Nitin Sethi, TNN, 19 January 2010, 05:39am IST</font></p><p><font color="#000080">NEW DELHI: The furore over the validity of data used by UN's Intergovernmental Panel on Climate Change (IPCC) has taken some of the sheen off the Nobel prize-winning institution's reputation. <br /></font></p><p><font color="#000080">A day after it emerged that IPCC's dire prediction that
climate change would melt most Himalyan glaciers by 2035 was based on mere
&quot;speculation&quot;, environment minister Jairam Ramesh slammed the processes of the
celebrated body saying &quot;due diligence had not been followed by the Nobel peace
prize winning body&quot;.
<br /><br />
 &quot;The health of glaciers is a cause of grave
concern but the IPCC's alarmist position that they would melt by 2035 was not
based on an iota of scientific evidence,&quot; the environment minister
said.
<br /><br />
 Ramesh recalled how IPCC chief R K Pachauri had scornfully
dismissed doubts raised by a government agency about the veracity of the UN
body's sensational projection about melting of glaciers. &quot;In fact, we had issued
a report by scientist V K Raina that the glaciers have not retreated abnormally.
At the time, we were dismissed, saying it was based on voodoo science. But the
new report has clearly vindicated our position,&quot; he said.
<br /><br />
 This may
not be the first time that climate science relating to India has been found to
be fallacious or incorrect. However, revelation that the data on glacial melt in
Himalayas was unverified has dented the image of the IPCC -- which has set the
agenda for climate change talks. It has given a handle to climate sceptics who
have long accused the IPCC of being biased.... [Meira...]</font></p><p>&nbsp;---</p><p>&nbsp;<span class="float-left"><a href="http://www.timesonline.co.uk/tol/news/" onclick="s_objectID="><img src="http://www.timesonline.co.uk/tol/img/global/tol-logo.gif" border="0" alt="Times Online" title="Times Online" width="460" height="70" /></a></span></p><p><a href="http://www.timesonline.co.uk/tol/news/environment/article6991177.ece"><u>http://www.timesonline.co.uk/tol/news/environment/article6991177.ece </u></a></p><div class="float-left position-relative margin-top-minus-22"><span class="small">
From </span><span class="byline">The Sunday Times</span>
</div>
<div class="float-right text-right position-relative margin-top-minus-20">
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 January 17, 2010 
</div><h1 class="heading"><font color="#008080">World misled over Himalayan glacier meltdown</font></h1><p><font color="#008080">&nbsp;
<span class="small"></span><span class="byline">
Jonathan Leake and Chris Hastings
</span></font><!-- Print Author name associated with the article -->


<!-- Print Author name from By Line associated with the article -->	
</p><p><font color="#008080">&nbsp;</font></p><p><font color="#008080">
A WARNING that climate change will melt most of the Himalayan glaciers by 2035 
is likely to be retracted after a series of scientific blunders by the 
United Nations body that issued it.
</font></p>
<p><font color="#008080">
Two years ago the Intergovernmental Panel on Climate Change (IPCC) issued a 
benchmark report that was claimed to incorporate the latest and most 
detailed research into the impact of global warming. A central claim was the 
world's glaciers were melting so fast that those in the Himalayas could 
vanish by 2035.
</font></p>
<p><font color="#008080">
In the past few days the scientists behind the warning have admitted that it 
was based on a news story in the New Scientist, a popular science journal, 
published eight years before the IPCC's 2007 report....</font></p><p><font color="#008080">
When finally published, <strong>the IPCC report</strong> did give its source as the WWF study 
but went further, suggesting the likelihood of the glaciers melting was 
&quot;very high&quot;. The IPCC defines this as having a probability of greater than 
90%.
</font></p>
<p><font color="#008080">
<strong>The report read: <em>&quot;Glaciers in the Himalaya are receding faster than in any 
other part of the world and, if the present rate continues, the likelihood 
of them disappearing by the year 2035 and perhaps sooner is very high if the 
Earth keeps warming at the current rate.&quot;
</em></strong></font></p>
<p><font color="#008080">
However, glaciologists find such figures inherently ludicrous, pointing out 
that most Himalayan glaciers are hundreds of feet thick and could not melt 
fast enough to vanish by 2035 unless there was a huge global temperature 
rise. The maximum rate of decline in thickness seen in glaciers at the 
moment is 2-3 feet a year and most are far lower... [Meira...]
</font></p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;--- </p><p><font size="4"><strong>EU Referendum:</strong></font></p><p><u><a href="http://eureferendum.blogspot.com/2010/01/pachauri-theres-money-in-them-glaciers.html">&nbsp;http://eureferendum.blogspot.com/2010/01/pachauri-theres-money-in-them-glaciers.html</a></u></p><p><font color="#0000ff">Syed Hasnain (pictured), the scientist at the centre of the growing
controversy over melting Himalayan glaciers (not), is now working for
Dr R K Pachauri's TERI as head of the institute glaciology team, funded
by a generous grant from a US charity, researching the effects of the
retreat.<br /><br />Highlighted in <a href="http://www.timesonline.co.uk/tol/news/environment/article6991177.ece" target="_blank"><em>The Sunday Times</em></a>
yesterday, Dr Hasnain was the scientist responsible for claiming that
the world's glaciers were melting so fast that those in the Himalayas
could vanish by 2035. This was picked up by the <em>New Scientist</em> and then by a <a href="http://assets.panda.org/downloads/himalayaglaciersreport2005.pdf" target="_blank">2005 WWF report</a>,
and subsequently published as a definitive claim in the IPCC's 2007
fourth assessment report, masterminded by Dr R K Pachauri....</font></p><p><font color="#800080"><strong>The Global Center is an Icelandic-based private institute with links to
the office of the president of Iceland, Olafur Ragnar Grimsson.</strong> Its aim
is to establish &quot;a major research and training program involving
scientists from South Asia, Europe and the Americas,&quot; of which Dr
Pauchari's TERI India is a central part...</font></p><p><font color="#0000ff"><font color="#800080"><strong>The research fund is also to be topped up from the $108,000 proceeds of the <a href="http://icelandreview.com/icelandreview/daily_news/?cat_id=29314&amp;ew_0_a_id=356601" target="_blank">Nehru Prize</a> awarded to Grímsson this month.</strong>..</font> [Meira...]</font></p><p>---</p><p><font size="4"><strong>&nbsp;Prófessor Roger Pielke jr:</strong></font></p><p>&nbsp;<u><a href="http://rogerpielkejr.blogspot.com/2010/01/sorry-but-this-stinks.html">http://rogerpielkejr.blogspot.com/2010/01/sorry-but-this-stinks.html</a></u></p><p><strong>&nbsp;&quot;Sorry, But This Stinks</strong>&quot;.</p><p>&nbsp;<font color="#000080">&quot;The IPCC treatment of Himalayan glaciers and its chairman's conflicts
of interest are related. The points and time line below are as I
understand them and are informed by reporting by Richard North.<br /><br />
1. In 2007 the IPCC issues its Fourth Assessment Report which contains
the false claim that the Himalayan glaciers are expected to disappear
by 2035.<br /><br />
2. The basis for that statement was a speculative comment made to a
reporter by Syed Hasnain in 1999, who was then (and after) a professor
at Jawaharlal Nehru University in Delhi.<br /><br />
3. Following the publication of the IPCC report, and the widespread
media coverage of the false claim about Himalayan glaciers, Dr. Hasnain
joins TERI as a Senior Fellow, where Dr. Pachauri is the director.<br /><br />
4. Drs. Pachauri and Hasnain together seek to raise fund for TERI for
work on Himalayan glaciers, justified by the work of the IPCC,
according to Dr. Pachauri just last week:<br /><br />
<font color="#800000">Scientific data assimilated by IPCC is very robust and it is
universally acknowledged that glaciers are melting because of climate
change. The Energy &amp; Resources Institute (TERI) in its endeavor to
facilitate the development of an effective policy framework and their
strategic implementation for the adaptation and mitigation of climate
change impacts on the local population is happy to collaborate with the
<strong>University of Iceland,</strong> Ohio State University and the Carnegie
Corporation of New York.</font><br /><br />
5. When initially questioned about the scientific errors Dr. Pachauri
calls such questions &quot;voodoo science&quot; in the days leading up to the
announcement of TERI receiving funding on this subject. Earlier Dr.
Pachauri criticized in the harshest terms the claims made by the Indian
government that were contrary to those in the IPCC<br /><br />
Pachauri said that such statements were reminiscent of &quot;climate change deniers and school boy science&quot;.<br /><br />
6. Subsequent to the error being more fully and publicly recognized,
when asked by a reporter about the IPCC's false claims Dr. Pachauri
says that he has no responsibility for what Dr. Hasnain may have said,
and Dr. Hasnain says, rather cheekily, the IPCC had no business citing
his comments:<br /><br />
&ldquo;It is not proper for IPCC to include references from popular magazines or newspapers.&rdquo;<br /><br />
Of course, neither Dr. Pachauri nor Dr. Hasnain ever said anything
about the error when it was receiving worldwide attention (as being
true) in 2007 and 2008, nor did they raise any issues with the IPCC
citing non-peer reviewed work (which is a systemic problem). They did
however use the IPCC and its false claims as justification in support
of fund raising for their own home institution. At no point was any of
this disclosed.<br /><br />
If the above facts and time line is correct (and I welcome any corrects
to details that I may have in error), then what we have here is a
classic and unambiguous case of financial conflict of interest. IPCC
Chairman Pachauri was making public comments on a dispute involving
factual claims by the IPCC at the same time that he was negotiating for
funding to his home institution justified by those very same claims. If
instead of climate science we were instead discussing scientific
advisors on drug safety and funding from a pharmaceutical company to
the advisory committee chair the conflict would be obvious.<br /><br />
<strong><em>Climate science desperately needs to clean up its act.</em></strong>&quot;</font></p><p>&nbsp;</p><p><font color="#800000">Þetta voru bara sýnishorn af þeim fréttum sem hafa verið í miðlum heims undanfarna tvo daga. Því miður hefur þetta atvik ásamt <strong>Climategate </strong>uppnáminu skömmu fyrir jól ekki verið til að auka tiltrú manna á loftslgsvísindinum svokölluðu. </font><font color="#800000"><strong><em>Climate science desperately needs to clean up its act, </em></strong><em>skrifar <u><a href="http://sciencepolicy.colorado.edu/about_us/meet_us/roger_pielke/">prófessor Roger Pielke jr</a></u></em><strong><em>.</em></strong></font><font color="#800080"><font color="#800000"> Það eru orð að sönnu...</font></font></p><p><font color="#800080">Hver var annars að tala um </font><font color="#800080">&bdquo;voodoo vísindi&quot;?</font> </p><p>&nbsp;</p><p><strong>Tengt efni:</strong></p><p>Bloggpistill frá 13. nóv. 2009:</p><h2><u><font size="2"><a href="/blog/agbjarn/entry/978815/">Hefur sjávarborð virkilega hækkað hraðar undanfarið? Ekki er það nú alveg víst...</a></font></u></h2>]]></description>
            <pubDate>Wed, 20 Jan 2010 06:14:27 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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<![endif]--><font color="#808000"><span style="font-size: 12pt; line-height: 115%; font-family: 'Lucida Handwriting'"></span></font></div><div align="center">&nbsp;</div><div align="center"><font color="#808000"><span style="font-size: 12pt; line-height: 115%; font-family: 'Lucida Handwriting'">&gt;&gt;&gt; Hekla Dögg&nbsp; í&nbsp; Haukadal<span>&nbsp; </span>&lt;&lt;&lt;</span></font></div><p>&nbsp;</p><p><font color="#808000">Þó sólin sé rétt aðeins farin að hækka á lofti, og daginn aðeins örlítið farið að lengja, þá finnur maður strax mun. Sólin er greinilega heldur hærra á himninum en á vetrarsólstöðum, og dagurinn greinilega heldur lengri. Það fer ekki á milli mála.</font></p><p><font color="#808000">Það er ekki laust við að maður sé farinn að hlakka örlítið til vorsins. Kannski er það til marks um þessa tilhlökkun að hinn sami maður sé farinn að laumast til að kíkja í <a href="http://www.skog.is/vefur/index.php?option=com_content&amp;view=article&amp;id=284:skograektarritie-seinna-hefti-2009-er-komie-ut&amp;catid=20&amp;Itemid=100023">Skógræktarritið</a> æ oftar. Síðasta eintakið liggur á náttborðinu, en það merkilega við Skógræktarritið er að það er hægt að lesa það aftur og aftur. Stinga hendinni blindandi inn í staflann og út kemur einhver gersemi, - gamall vinur. Fátt er eins notalegt og sofna eftir að hafa gluggað í þetta einstalega vandaða blað og svífa síðan inn í fagurgræna draumaheima. &nbsp; Jafnvel um hávetur.</font></p><p><font color="#808000">Það sem einkennt hefur Skógræktarritið er hin mikla alúð sem lögð er við gerð þess. Í ritinu koma saman fræðimenn og áhugamenn, þannig að það verður enstaklega áhugavert. Það er greinilegt að allir eru að skrifa um málefni sem þeim þykir vænt um. Kannski er það ástæðan fyrir því hve þetta óvenjulega rit er vinalegt.</font></p><p><font color="#808000">&nbsp;</font></p><p><font color="#808000">Hvað ætli margir Íslendingar séu í skógræktarfélögum? Þeir eru líklega æði margir, því á vefnum <a href="http://skog.is/vefur/"><u>www.skog.is</u></a> er <a href="http://skog.is/vefur/index.php?option=com_content&amp;view=category&amp;id=23&amp;Itemid=27"><u>listi</u></a> með vefkrækjum yfir 60 skógræktarfélög í öllum landshlutum.</font></p><p>&nbsp;</p><p align="center"><font size="3" color="#808000">... Og svo er vorið einhvers staðar handan horns. Innan skamms kviknar ástin í hjörtum litlu fuglanna og þeir gleðja okkur með söng sínum meðan þeir gera sér hreiður og koma upp ungunum sínum. Þá er vorið vissulega komið, en auðvitað er veturinn ekki búinn. Milda veðrið undanfarið platar okkur svolítið og Þorrinn er eftir. Hann getur verið illskeyttur - En sólin hækkar á lofti og með hverjum deginum sem líður verður bjartara, - einnig í hugum okkar... </font></p><p>&nbsp;</p><p><font size="1" color="#999999">(Myndin efst á síðunni er tekin í Haukadalsskógi í ágúst 2005. Myndina má auðvitað stækka með því að tvísmella á hana.&nbsp; Það kunna víst flestir :-) </font></p><p>&nbsp;</p><p>&nbsp;</p><p><font color="#008000">Nokkrar vefsíður skógræktarfélaga.<br />Smellið á nafn félags til að opna síðu: </font></p><p align="center"><font size="3" color="#008000"><strong><a href="http://skog.is/vefur/">www.skog.is</a><br />Skógræktarfélag Íslands</strong></font></p><p align="center">&nbsp;</p><p align="center"><font size="1" color="#008000"><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://www.kjarnaskogur.is/index.html">Skógræktarfélag Eyfirðinga</a></span><span style="font-family: trebuchet ms,geneva; font-size: 10pt"></span><br /><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://www.skogkop.net">Skógræktarfélag Kópavogs</a></span><br /><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://www.internet.is/skogmos">Skógræktarfélag Mosfellsbæjar</a></span><br /><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://hjallaskogur.123.is">Skógræktarfélag Neskaupstaðar</a></span><br /><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://www.heidmork.is">Skógræktarfélag Reykjavíkur</a></span><br /><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://www.hellisskogur.is">Skógræktarfélag Selfoss (Sk. Árnesinga)</a></span><a href="http://www.simnet.is/skogur/forest.htm"><br /></a><span style="font-family: trebuchet ms,geneva; font-size: 10pt"><a href="http://www.simnet.is/skogur/forest.htm">Skógræktarfélag Stykkishólms</a><br /></span><a href="http://www.simnet.is/skogur/forest.htm"><span style="font-family: trebuchet ms,geneva; font-size: 8pt"></span></a></font> </p><p align="center">&nbsp;<a href="http://www.facebook.com/pages/Reykjavik-Iceland/Skograektarfelag-Islands/165391982382"><img src="http://skog.is/vefur/images/stories/myndir/box-facebook.jpg" border="0" alt="box-facebook" width="145" height="56" /></a></p><p align="center">&nbsp;</p>]]></description>
            <pubDate>Fri, 15 Jan 2010 16:18:49 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Gömul kvikmynd frá um 1990: The Greenhouse Conspiracy...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/994831/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/994831/?t=1262970022</guid>
            <description><![CDATA[<p>&nbsp;</p><p><font size="3" color="#000080"><strong>Forngripur eða klassík?</strong> Mynd sem sýnd var í Ástralska sjónvarpinu árið 1990, fyrir nánast 20 árum, - og umræðan hefur lítið breyst. </font><font color="#000080"><img src="/js/tiny_mce/plugins/emotions/images/Smile.png" border="0" align="absmiddle" /></font></p><p><font size="3" color="#000080">Það má fyrst og fremst líta á þessa mynd frá sögulegu sjónarmiði, því þarna koma fram menn sem enn eru í fréttunum, nú tuttugu árum síðar. Einnig menn sem væntanlega eru komnir undir græna torfu...</font></p><p>&nbsp;</p><p><font color="#000080">Þessi mynd er eingöngu birt hér þar sem hún er <em>forvitnileg</em>. Væntanlega er hún að miklu leyti barn síns tíma...&nbsp; Eða hvað?<br /></font></p><p>Er myndin barn síns tíma? Hefur barnið náð að þroskast og vitkast á þeim tveim áratugum sem liðnir eru síðan myndin var gerð? Hefur eitthvað breyst?</p><p>&nbsp;</p><p><font color="#000080">Fyrirvari: Skoðanir sem koma fram í myndinni eru að sjálfsögðu ekki endilega þær sömu og skoðanir þess er pistilinn ritar. Það má alla vega hlýja sér við hana í skammdeginu og kuldanum og velta fyrir sér hvað hafi breyst á síðustu áratugum</font></p><p><font color="#000080"><br /></font></p><p><strong>Munið að myndin er frá 1990</strong>.</p><p><font size="3">Góða helgi <img src="/js/tiny_mce/plugins/emotions/images/Smile.png" border="0" align="absmiddle" /></font> </p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="523"><param name="movie" value="http://video.google.com/googleplayer.swf?docid=-5949034802461518010&amp;hl=en&amp;fs=true" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://video.google.com/googleplayer.swf?docid=-5949034802461518010&amp;hl=en&amp;fs=true" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="523"></embed></object></div> <p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><img class="align_absmiddle" src="/tn/400/users/fa/agbjarn/img/newsweek-global-cooling.jpg?img_id=949836" border="1" alt="newsweek-global-cooling.jpg" title="newsweek-global-cooling.jpg" /></div><div style="text-align: center">&nbsp;</div><div style="text-align: center">&nbsp;</div><div style="text-align: center"><font color="#800000">Aðeins 15 árum áður en myndin var gerð voru áhyggjurnar af allt öðrum toga,</font></div><div style="text-align: center"><font color="#800000"> eins og fram kemur í greininni í Newsweek sem myndin er af.&nbsp; Hvað skyldi það hafa verið?</font></div><div style="text-align: center"><font color="#800000">Smellið þrisvar á myndina til að lesa þessa frægu grein. </font><br /></div> <br /><p>&nbsp;</p>]]></description>
            <pubDate>Fri, 08 Jan 2010 17:00:22 GMT</pubDate>
            <category><![CDATA[Vísindi og fræði]]></category>
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            <title><![CDATA[Ólafur Ragnar stóð sig vel hjá BBC í gær: Myndband...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1001938/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1001938/?t=1262856592</guid>
            <description><![CDATA[<p>&nbsp;</p><p><font size="3"><u><strong><a href="http://www.bbc.co.uk/pressoffice/biographies/biogs/news/jeremypaxman.shtml">Jeremy Paxman</a></strong></u> hjá BBC er þekktur fyrir að vera harðskeyttur. Hann komst þó varla að þegar hann mætti Ólafi Ragnari í gær. Ólafur lét Paxman ekki vaða yfir sig og stóð sig með prýði.<br /></font></p><p><font size="3">Svona kynning hefði auðvitað átt að koma miklu miklu fyrr frá stjórnvöldum.&nbsp; Það verður að segjast eins og er að þarna gerði forsetinn gagn, hvað sem manni finnst um atburðina fyrr í vikunni.<br /></font></p><p>&nbsp;</p><p>&nbsp;</p><div style="text-align: center"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="600" height="494"><param name="movie" value="http://www.youtube.com/v/vTP3DH5YQhc&amp;rel=1" /><param name="quality" value="high" /><param name="menu" value="false" /><param name="wmode" value="transparent" /><embed src="http://www.youtube.com/v/vTP3DH5YQhc&amp;rel=1" wmode="transparent" quality="high" menu="false" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="600" height="494"></embed></object></div><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>Sjá einnig <a href="http://www.youtube.com/watch?v=gNokB82hcG8"><u>þátt um Icesave</u></a>, þ.e. fyrri hlutann, á Newsnight BBC 5. janúar. </p><p>&nbsp;</p><p>&nbsp;</p>]]></description>
            <pubDate>Thu, 07 Jan 2010 09:29:52 GMT</pubDate>
            <category><![CDATA[Stjórnmál og samfélag]]></category>
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            <title><![CDATA[Ólafur Ragnar: "You ain't seen nothing yet"...]]></title>
            <link>http://agbjarn.blog.is/blog/agbjarn/entry/1001267/</link>
            <guid>http://agbjarn.blog.is/blog/agbjarn/entry/1001267/?t=1262760829</guid>
            <description><![CDATA[<font color="#ffffff">.

</font><div style="text-align: center"><img class="align_absmiddle" src="/users/fa/agbjarn/img/you_aint_seen_500_shadow.jpg?img_id=949188" border="0" alt="you_aint_seen_500_shadow.jpg" title="you_aint_seen_500_shadow.jpg" align="absmiddle" /></div><div style="text-align: left">&nbsp;</div><div align="center">&nbsp;</div><div align="center"><font color="#800000"><em><font size="5">&nbsp;&quot;You ain't seen nothing yet&quot;...</font></em></font></div><div align="center">&nbsp;</div><div align="center"><font size="4"><font size="3">sagði forseti vor í ræðu á erlendri grundu í maí 2005.</font></font></div><div align="center">&nbsp;</div><div align="center"><font size="4">&nbsp; </font><br /><font size="2" color="#808080">(Now <em><strong>we</strong></em> have seen it...)</font></div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left">&nbsp;</div><div style="text-align: left"><font size="3" color="#000080">Þessa frægu tilvitnun má lesa í aftast ræðunni sem má nálgast <u><strong><a href="/users/fa/agbjarn/files/05_05_03_walbrook_club.pdf">hér</a></strong></u>.</font></div><div style="text-align: left"><font color="#000080">&nbsp;</font></div><div style="text-align: left"><font size="3" color="#000080">Lesið alla ræðuna. Hún gefur okkur innsýn í heim sem flestum er hulinn... </font></div><div style="text-align: left"><font color="#000080">&nbsp;</font></div><div style="text-align: left"><font size="3" color="#000080">Hvað finnst mönnum um þessa ræðu í ljósi atburða síðasta sólarhrings? Ber hún ekki vott um mikla framsýni, visku og skynsemi? Ber hún ekki vott um hógværð og lítillæti?&nbsp; </font></div><div align="left" style="text-align: center">&nbsp; <br /></div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left"><font color="#993300">&quot;...It is of course tempting to let it remain a mystery, to allow the British business world to be perplexed....&quot; </font></div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left"><u><a href="http://forseti.is/media/files/Walbrook.pdf">Fréttatilkynning</a></u><a href="http://forseti.is/media/files/Walbrook.pdf"> um ræðuna hjá Walbrook klúbbnum á vef&nbsp; Forsetaembættisins.</a></div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left"><u><a href="http://forseti.is/media/files/05.05.03.Walbrook.Club.pdf">Ræðan</a></u><a href="http://forseti.is/media/files/05.05.03.Walbrook.Club.pdf"> á vef Forsetaembættisins, forseti.is.</a></div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left">&nbsp;</div><div align="left" style="text-align: left">&nbsp;</div>]]></description>
            <pubDate>Wed, 06 Jan 2010 06:53:49 GMT</pubDate>
            <category><![CDATA[Stjórnmál og samfélag]]></category>
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