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Economist warns millions at risk from climate change – ‘We haven’t been above five degrees Celsius on this planet for about 30 million years. So you can see that this is radical change way outside human experience.’
WASHINGTON, 3 April 2013 (AFP) – The author of an influential 2006 study on climate change warned Tuesday that the world could be headed toward warming even more catastrophic than expected but he voiced hope for political action.
Nicholas Stern, the British former chief economist for the World Bank, said that both emissions of greenhouse gas and the effects of climate change were taking place faster than he forecast seven years ago.
Without changes to emission trends, the planet has roughly a 50 percent chance that temperatures will soar to five degrees Celsius above pre-industrial averages in a century, he said.
“We haven’t been above five degrees Centigrade on this planet for about 30 million years. So you can see that this is radical change way outside human experience,” Stern said in an address at the International Monetary Fund.
“When we were at three degrees Centigrade three million years ago, the sea levels were about 20 some meters (65 feet) above now. On sea level rise of just two meters, probably a couple of hundred million people would have to move,” he said.
Stern said that other effects would come more quickly including the expansion of deserts and the melting of Himalayan snows that supply rivers on which up to two billion people depend.
Even if nations fulfill pledges made in 2010 at a UN-led conference in Cancun, Mexico, the world would be on track to warming of four degrees, he said.
Stern’s 2006 study, considered a landmark in raising public attention on climate change, predicted that warming would shave at least five percent of gross domestic product per year.
Despite the slow progress in international negotiations, Stern saw signs for hope as a number of countries move to put a price on greenhouse gases.
“My own view is that 2013 is the best possible year to try to work and redouble our efforts to create the political will that hitherto has been much too weak,” Stern said. [more]
Economist warns of ‘radical’ climate change, millions at risk
2013-04-05 07:16:56
Source: http://www.desdemonadespair.net/2013/04/economist-warns-millions-at-risk-from.html
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