This Saturday, Dec. 1, 2012 photo, shows the general view of a gas station in Doha, Qatar. The host of the current U.N. climate talks, Qatar, is among dozens of nations that keep gas prices low through subsidies that exceeded $500 billion globally last year. (AP Photo/Osama Faisal)

Associated Press
This Saturday, Dec. 1, 2012 photo, shows the general view of a gas station in Doha, Qatar. The host of the current U.N. climate talks, Qatar, is among dozens of nations that keep gas prices low through subsidies that exceeded $500 billion globally last year. (AP Photo/Osama Faisal)
This Saturday, Dec. 1, 2012 photo, shows the general view of a gas station in Doha, Qatar. The host of the current U.N. climate talks, Qatar, is among dozens of nations that keep gas prices low through subsidies that exceeded $500 billion globally last year. (AP Photo/Osama Faisal)
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