First commitment period

Negotiable credit in the international carbon market originated from clean development mechanism (CDM) projects.

It is the reduction in deforestation rate of an area, so that the resulting deforestation rate is lower than in a non-intervention scenario to decrease the forest conversion process.

Changes that are directly or indirectly attributed to human activity and alter the composition of the world's atmosphere and that is added to that caused by the natural climatic variability observed over comparable periods.