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Carol Browner, President Obama’s former climate czar, said Monday that Canada could boost the odds of winning White House approval of the Keystone XL pipeline by offering fresh greenhouse gas reductions.

“I think it is conceivable that Canada will offer an offset for the emissions, which will change the debate,” Browner said at a Bloomberg event in New York City.

“I do think for a lot of the people who are objecting to it, it is the amount of greenhouse gases, the amount of energy it takes to get the tar sands up out of the ground, and if [Prime Minister] Harper can say ‘Mr. President, that’s X amount of greenhouse gases and I’m prepared to reduce greenhouse over here,’ then I think that drops the temperature on some of the arguments,” Browner, now a senior fellow at the liberal Center for American Progress, said at Bloomberg’s “Next Big Thing Summit.”