While it might sound welcome, the temperature differences produced by the "iceberg cooling effect" could lead to even more climate chaos in a world already devastated by extreme weather. Winter storms, for instance, are powered by the temperature differences between the poles and the equator, so there might be storms of unprecedented ferocity.


And the temporary cooling would be deceptive. Due to the greenhouse effect, the planet as a whole would still be accumulating heat - it's just that vast amounts of heat would be going into melting ice and warming water. "It's a redistribution of heat energy," says Daniel Sigman of Princeton University, who <a href="http://www.newscientist.com/article/mg21628891.900-the-great-thaw-charting-the-end-of-the-ice-age.html" target="_blank" class="news_link" title="The great thaw">studies the end of the last ice age</a> and was not involved in Hansen's work.



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Sea level rise could lead to a cooler, stormier world