Existing & proposed mechanisms for international emissions transactions under the Kyoto Protocol
Clean Development
Mechanism (CDM)
Joint Implementation
Track 1
Joint Implementation
Track 2
Green Investment
Schemes
International
Emissions Trading
Crediting period for CDM projects (from 2000)
Possibility of crediting reductions prior
to 2009 via emissions trading
Trading period
Crediting period for JI projects
2008    First commitment period of the     2012
                              Kyoto Protocol