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WASHINGTON — Former Vice President Al Gore urged lawmakers Friday to overcome partisan differences and take action to reduce greenhouse gases.

Gore, who won a Nobel Prize for his work on climate change, said at a congressional hearing that “the dire and growing threat” of a warmer Earth requires the parties to unite to deal with the environmental threat. He endorsed a House Democratic bill that would limit carbon dioxide and other pollutants linked to warming.

But former House Speaker Newt Gingrich, R-Ga., argued that the Democratic proposal would “punish the American people” by imposing higher energy costs and threatening jobs.