A carbon price now exists, established by the European Emissions-Trading Scheme (ETS).

由欧洲碳排放交易计划(ets)制定的碳排放价格已然存在。

youdao

The climate committee must decide by late 2011 the best way to put a price on greenhouse-gas emissions: an ETS, a carbon tax or a hybrid of both.

气候变化委员会必须在2011年末抉择出温室气体排放量定价的最佳方式，是继续遵守欧盟温室气体排放交易体系（ETS），还是实行碳税，亦或两者混合采用。

youdao

The climate committee must decide by late 2011 the best way to put a price on greenhouse-gas emissions: an ETS, a carbon tax or a hybrid of both.

ECONOMIST: The government considers a carbon tax