T o most economists , putting a price on greenhouse-gas emissions is the best way to tackle climate change. It is efficient, allowing society to identify the cheapest unit of carbon-dioxide equivalent to forgo. It is fair: polluters pay; the proceeds can be redistributed. And it aids other forms of decarbonisation: complying with a carbon price forces companies to track their emissions and investors to work out which of their assets are the dirtiest.
大多数经济学家，对温室气体排放的代价是应对气候变化的最佳方法。这是有效的，使社会能够确定最便宜的二氧化碳单位等效于放弃。公平：污染者付款；收益可以重新分配。它有助于其他形式的脱碳化：遵守碳价格迫使公司跟踪其排放和投资者，以确定其哪些资产最肮脏。
