‘WASHINGTON \u00e2\u20ac\u201d When President Obama tried to tackle climate change in his first term, he pushed Congress to limit and put a price on carbon pollution, but the so-called cap-and-trade bill died in the Senate in 2010. Among the chief reasons: Lawmakers from both parties feared that any law to cut greenhouse gas emissions would harm the nation\u2019s competitiveness compared with China, which was then emerging as the world\u2019s largest polluter.’<\/p>\n