Dani Cooper, ABC, 8 April 2009Photo: Dr Andrea Dutton
[...] By comparing the dates of sea level rises with known increases in temperature, based on studies of ice cores from the Antarctic, they have shown the ice sheets respond rapidly to global warming.
It was previously believed that temperature rise preceded ice sheet melting by more than 3000 years. "But these two variables have operated in phase for the major termination events in the past 500,000 years," the researchers write in the paper.
Dutton says this suggests ice sheets are capable of responding quickly to increasing temperature and CO2.
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