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President-elect Trump has declared climate change a “hoax,” and another word that can't be spoken on radio. But around the world there’s a fair bit of momentum to cut the carbon emissions that are warming the planet. On Jan. 1, the province of Ontario, above New York, opens the newest so-called cap-and-trade market for greenhouse gas emissions. It will hook up with other similar carbon markets in North America. 

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Follow Scott Tong at @tongscott