emissions trading

(also emission trading)

noun [U] ENVIRONMENT

Definition

› the activity of buying and selling emission units and emission credits: The EU is demanding that emissions trading and other such mechanisms account for no more than half a country's cuts.emissions trading plan/programme/scheme The European Union proposed rules that would require airlines serving domestic routes to enter into an emissions trading scheme by 2011.

(Definition of emissions trading noun from the Cambridge Business English Dictionary © Cambridge University Press)