Computers can't keep up with melting Arctic

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	Computers can't keep up with melting Arctic

Wadard

5-2-2007 9:01 AM

316 views

tags:

global warming, science, arctic

Wadard says:

Out of an exercise mapping real-world observations to computer climate models is news that global warming is more accelerated than the scientific consensus holds.

Ted Scambos of the National Snow and Ice Data Center (NSIDC) at the University of Colorado co-authored the latest study of Arctic ice melt, published in the journal Geophysical Research Letters, with other scientists from NSIDC and from the National Center for Atmospheric Research (NCAR), also in Boulder, Colorado.

This is the third piece of recent evidence that the IPCC forecasts err on the conservative side.

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					Arctic melt faster than forecast
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<FONT size="2">    <TABLE width="416" cellspacing="0" cellpadding="0" border="0"><TBODY><TR><TD valign="bottom"><DIV class="mvb">
<SPAN class="byl">
                        By Richard Black
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                        Environment correspondent, BBC News website
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        </TD></TR></TBODY></TABLE><IMG width="416" vspace="0" hspace="0" height="1" border="0" alt="" src="http://newsimg.bbc.co.uk/shared/img/999999.gif" />
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		<TABLE width="203" cellspacing="0" cellpadding="0" border="0" align="right"><TBODY><TR><TD><DIV>
				<IMG width="203" vspace="0" hspace="0" height="152" border="0" alt="Polar bear on ice. Image: SPL" src="http://newsimg.bbc.co.uk/media/images/42868000/jpg/_42868919_polarbearspl203.jpg" />
				<DIV class="cap">Arctic summer ice has been shrinking by about 9% per decade</DIV>
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			</TD></TR></TBODY></TABLE><B>Arctic ice is melting faster than computer models of climate calculate, according to a group of US researchers.</B>
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<FONT size="2">Since 1979, the Arctic has been losing summer ice at about 9% per decade, but models on average produce a melting rate less than half that figure.
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<FONT size="2">The scientists suggest forecasts from the Intergovernmental Panel on Climate Change (IPCC) may be too cautious. 
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<FONT size="2">The latest observations indicate that Arctic summers could be ice-free by the middle of the century.</FONT></P></TD></TR></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/DB28A7ED-0E66-4CD3-8775-85497C5E2B3B/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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