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Associated Press
FILE - In this Saturday, Jan. 10, 2009, file photo, a flock of geese fly past a smokestack at the Jeffery Energy Center coal power plant near Emmitt, Kan. Hundreds of corporations, insurance companies and pension funds are calling on world leaders gathering for a U.N. summit on climate change this week to attack the problem by making it more costly for businesses to pollute. (AP Photo/Charlie Riedel, File)

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