Clean development mechanism: 2008 in brief
The clean development mechanism allows emission-reduction projects in developing countries to earn certified emission reduction (CER) credits, each equivalent to one tonne of CO2. CERs can be traded and sold, and used by industrialized countries to meet a part of their targets under the Protocol. The CDM assists countries in achieving sustainable development and emission reductions, while giving industrialized countries some flexibility in how they meet their emission targets.