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Comments: NASA: warming is causing Greenland ice to melt faster than expected
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I've heard over and over that the complete melting of the ice sheets on Greenland is "unlikely." What evidence is there that is unlikely? So far we've seen ever changing estimates of the melting in various sites--Kilamanjaro, Arctic Ocean, Antarctica, etc. I wish the so-called experts would at least explain why they make that statement. After all, if the oceans could rise 23 feet we should be clear about what is and what is not possible, but let's base it on fact.
I suspect that soon the accepted statement on the Greenland Ice melt will change to complete melting of the ice sheets will be "likely". It is only a question of how long. The recent summer of 2007 saw a reduction of the Arctic sea ice cover of over 40% - most extensive reduction ever recorded - and the likelihood that by 2013 the Arctic summers may be "ice free" which would be a tremendous feedback mechanism favouring increased global heating. Also older, "permanent" sea ice has melted away or thinned. Now it appears that this tipping point in the Arctic has been reached.. 100 years ahead of the IPCC projection!! Btw, a near complete melt of the Greenland ice sheet would raise sea levels at least 7 metres. Note that the IPCC report was heavily and deviously editted by countries like the US and China who wish to downplay the projected severity and rapidity of anthropologic global warming and maintain the status quo in terms of CO2 emissions. Here is a site with an interesting downloadable report on what the reputable climate scientists are stating privately... and publically!..
http://www.climatecodered.net/