
The Kyoto Protocol sets legally binding targets for the emission of GHGs for the countries of the developed world that have ratified the protocol (Annex 1 countries). The six Greenhouse Gases are:

The protocol binds countries that have ratified the treaty to reduce emissions of these gases by an overall 5% below 1990 levels during 2008 to 2012. In order to meet these targets, Annex 1 parties may directly reduce their domestic emissions but also use the three innovative or “flexibility” mechanisms introduced by the protocol - the Clean Development Mechanism (CDM), Joint Implementation (JI) and Emissions Trading – provided that the country complies with its methodological and reporting obligations under the Protocol. However, parties must provide evidence that their use of the mechanisms is “supplemental to domestic action”, which must constitute “a significant element” of their efforts in meeting their commitments. The modalities and guidelines for implementation of the flexibility mechanisms are contained within the Marrakeseh Accords, agreed at the 7th Conference of the Parties to the UNFCCC, in November 2001.
These flexibility mechanisms provide the legal framework for the trading of carbon credits, placing a price on emissions and thereby providing incentives for people, companies and countries to emit less. Resources are channelled toward the most cost effective means of reducing GHG emissions and at the same time a market demand for new clean energy technologies is created.
This Compliance Carbon Market with carbon credits as the first environmental commodity is growing at a rapid rate with trading volumes now reaching billions of dollars and hundreds of millions of tonnes of carbon dioxide. The market offers growth prospects for business and positive impacts for GHS emission reductions, finance for clean and sustainable development and renewable energy.
Joint Implementation (JI)
Under the JI mechanism companies in
industrialised countries can purchase carbon credits from GHG
reduction projects implemented in another developed country or
in a country with an economy in transition (mainly from countries
of the formerly communist Eastern Europe). Emission Reductions
from JI projects are called Emission Reduction Units (ERUs).
Emissions Trading
A cap-and-trade transaction system
has been institutionalised where developed countries that have
ratified the Kyoto Protocol are allocated emissions allowances
based on the negotiated targets. These countries can purchase
carbon credits from each other in order to meet their Kyoto commitments.
One of the most important and biggest trading schemes that has been developed to meet the Kyoto targets is the EU Emissions Trading Scheme (EU ETS). This is distinct from the Emissions Trading mechanism outlined above and is an internal scheme the EU has implemented to meet its domestic commitment. The scheme has been in operation since 1st of January 2005, involves all EU member states and also allows limited trading with the CDM and JI Kyoto mechanisms.