At EU level, this approach is embodied in the greenhouse gas emissions trading scheme (ETS), the 2003 directive on energy taxation and the recently revised Eurovignette directive on truck tolls.

在欧盟这一级别，这种做法体现在温室气体排放交易机制(“排放交易机制”)中，即2003年能源税指令以及最近刚刚修改的对超重卡车收费的Eurovignette指令。

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Indeed, the German government has said it intends to remove its passenger tax when aviation enters the EU ETS from January 2012.

ECONOMIST: Letters

Once we are part of the EU ETS, governments should look to remove existing tax schemes to avoid duplicative and damaging costs to the industry.

ECONOMIST: Letters

First unveiled in 2005, EU-ETS requires aircraft operators flying within EU airspace to participate in a carbon credit trading program.

FORBES: Europe Stops The Clock On Deeply Flawed Aviation Emissions Scheme