A panel of experts and the United Nations climate chief agree: the United States needs to work harder to combat global warming.
The 22-member panel that Congress asked to recommend ways to deal with the problem issued its report Thursday. It says the U.S. should not wait to substantially reduce the pollution responsible for global warming, and any efforts to delay action would be shortsighted.
At the same time, the U.N.'s Christiana Figueres said Washington's inaction on climate legislation is a "very serious hand brake" on world efforts to combat global warming.
She also said she believes the U.S. will eventually join the rest of the industrialized world in mandatory reductions of greenhouse gases.
But Republicans are pushing measures to block the federal government from controlling greenhouse gases.
The U.S., alone among industrial nations, rejects the existing global agreement, whose mandatory, relatively modest reductions expire next year.
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