2016-12-05. During last period of global warming, Antarctica warmed 2 to 3 times more than planet average.

posted Dec 9, 2016, 3:57 PM by Alan Gould   [ updated Dec 9, 2016, 4:00 PM ]

By Robert Sanders, UC Berkeley News, Media relations. For GSS Life and Climate chapter 10. Excerpt: Following Earth’s last ice age, which peaked 20,000 years ago, the Antarctic warmed between two and three times the average temperature increase worldwide, according to a new study by a team of American geophysicists. The disparity – Antarctica warmed about 11 degrees Celsius, nearly 20 degrees Fahrenheit, between about 20,000 and 10,000 years ago, while the average temperature worldwide rose only about 4 degrees Celsius, or 7 degrees Fahrenheit – highlights the fact that the poles, both the Arctic in the north and the Antarctic in the south, amplify the effects of a changing climate, whether it gets warmer or cooler. The calculations are in line with estimates from most climate models, proving that these models do a good job of estimating past climatic conditions and, very likely, future conditions in an era of climate change and global warming. ...These models currently predict that as a result of today’s global climate change, Antarctica will warm twice as much as the rest of the planet, though it won’t reach its peak for a couple of hundred years. While the most likely climate change scenario, given business-as-usual greenhouse gas emissions, is a global average increase of 3 degrees Celsius (5 degrees Fahrenheit) by 2100, the Antarctic is predicted to warm eventually by around 6 degrees Celsius (10 degrees Fahrenheit)....  http://news.berkeley.edu/2016/12/05/during-last-period-of-global-warming-antarctica-warmed-2-to-3-times-more-than-planet-average/


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