carbon credit
noun
a permit that gives a company, country, etc., the right to emit a specified amount of carbon compounds into the atmosphere, and may be purchased if emissions are expected to exceed a quota or sold if the quota is not reached: Companies can accumulate carbon credits by funding new forest growth.
Compare
carbon offsetting.
Words nearby carbon credit
British Dictionary definitions for carbon credit
carbon credit
noun
a certificate showing that a government or company has paid to have a certain amount of carbon dioxide removed from the environment