Certified Emission Reductions (CERs) are a type of emissions unit (or carbon credits) issued by the Clean Development Mechanism (CDM) Executive Board for emission reductions achieved by CDM projects and verified by a DOE under the rules of the Kyoto Protocol. CERs can be purchased from the primary market (purchased from original party that makes the reduction) or secondary market (resold from a marketplace). Read the full report here.
Source: Power Engineering.