Certified emission reduction (CER)

Reducing Emissions from Deforestation and Forest Degradation - the concept has evolved to REDD+.

Activities that are part of a candidate CDM project and that provide a reduction in the emission of greenhouse gases or an increase in the removal of CO2. (see question 20 of the ABC of Changes)

Gaseous constituents of the atmosphere, from natural or anthropic sources, that absorb and re-emit infrared radiation. The UNFCCC and Kyoto Protocol count for carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and sulfur hexafluoride (SF6), accompanied by...