The Discoverer Deep Seas drill ship sits off the Louisiana coast in the Gulf of Mexico in this 2006 photo. President Obama's plan expands eastward the area of the Gulf where drilling is already permitted. Alex Brandon/AP hide caption

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The newly renovated coal burning, U.S. Capitol Power Plant is seen on April 22, 2009 on Capitol Hill in Washington, DC. The Capitol Power Plant is a power plant which provides steam and cooled water for the United States Capitol and other buildings in the Capitol Complex. Tim Sloan/AFP/Getty Images hide caption

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A man holds a handful of coffee beans during the first day of the World Coffee Conference in Guatemala City on Feb. 26. Coffee producers say they are getting hammered by global warming, with higher temperatures forcing growers to move to prized higher ground, putting the cash crop at risk. Johan Ordonez/AFP/Getty Images hide caption

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