Barack Obama cannot deliver on his promise to cut greenhouse gas emissions by 17% without decisive new actions, a report warned on Wednesday.
America's greenhouse gas emissions have fallen under Obama, as power plants burn less coal. But the country will still fall short of his commitment to a 17% reduction by the end of the decade, the report from the World Resources Institute said.
The president offered the 17% cut at the Copenhagen climate summit in 2009.
But if Obama wants to make good on that commitment and the sweeping climate promises of his inauguration day address, he will have to tighten rules on coal-fired power plants and on the natural gas industry, the report said.