James Hansen, one of the world’s foremost climate archaeologists, has become internationally renowned, amongst others because in his scientific papers and publicity work he takes account of the evolution which the earth’s climate has undergone during the many hundreds of millions of years before human civilisation arose. Hansen puts forth data on the situation that prevailed three million years ago. At that time the earth was two or three degrees warmer than it is today – and it was a different planet, with sea levels not just higher than they are now, but a staggering 25 metres higher!
The lower sea levels since civilisation arose have led to the building of human settlements in coastal areas previously flooded or covered by ice. The sea level difference is, of course, basically explained by the existence today of huge ice sheets – notably the Antarctic and the Greenland ice sheets.
Hansen argues that – unlike previously believed – the Antarctic and Greenland ice sheets won’t take thousands of years to melt. They will disintegrate rapidly once danger points are reached. Hence, the American scientist maintains that “a two degree Celsius global warming, or even a 1.7 degree warming, is a disaster scenario”.
Clearly, given the IEA’s data on 2010 CO2 emissions at hand, Hansen would ring shrieking, not soft alarm bells.
Disrupting the Borg is expensive and time consuming!
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Well that’s a new one to add to his resume……lol, where’d he come up with his 2 or 3 degrees warmer thingy?…………wait!!!! let me guess, ……….. ice cores!!!!!!…..bwahahahahahahahaha
You got to hand it to Big Jim and his fairy tales! It has taken Millions of years of the current Ice Age with its periods of glaciation and interglacials to reach the current conditions. While it is possible some situation could actually come along to break that cycle the amount of time required to accomplish a melting of the current ice sheets would allow adaptation to future conditions and if it started we could not stop it anyhow as the tilt of the earth and obliquity of the orbit would have to change as well as the position of some continents.
It appears that Big Jim knows as much about Archeology as he does about weather, NADA! One letter gives a better definition of the agency he works for.