The cost of holding rising temperatures to safe levels may reach 4 percent of economic output by 2030, according to a draft United Nations report designed to influence efforts to draft a global-warming treaty.
Most scenarios that meet the 2-degree Celsius (3.6-degree Fahrenheit) cap on global warming endorsed by world leaders require a 40 percent to 70 percent reduction in heat-trapping gases by 2050 from 2010 levels, according to the third installment of the UN’s biggest-ever study of climate change. The world would need to triple the share of renewables, nuclear power and carbon-capture and storage to meet that goal.
“This report shows that 2 degrees is still technically possible and ought to remain the primary policy target” for climate negotiations that intend to produce a global agreement in 2015, said Bob Ward, policy director at the Grantham Research Institute on Climate Change and the Environment at the London School of Economics.
See full Article: http://www.bloomberg.com/news/2014-01-16/climate-protection-may-cost-4-of-world-gdp-by-2030.html
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