carbon credit
noun[C]
ukusENVIRONMENT
aunitused incarbontradingthatrepresentstherightof abusiness,factory, etc. torelease1000kilogramsofcarbondioxideinto theenvironment:
The Climate Trust is agroupthatbuysandsellscarboncredits.
Companiesunabletomeettheiremissionstargetswould beabletopurchaseadditionalcarboncredits.