Many companies backing action on climate change stand to gain if the U.S. requires corporations to pay for the right to emit carbon dioxide.
如果美国法律要求企业为碳排放支付费用,那么许多支持气候变化行动的公司将从中受益。
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It is the most ambitious of the bills with serious backing: it would cut carbon emissions to 2004 levels by 2012 and then mandate further reductions of 2% a year until 2020.