Kyoto Protocol

The Kyoto Protocol is a protocol to the United Nations Framework Convention on Climate Change (UNFCCC or FCCC), an international environmental treaty produced at the United Nations Conference on Environment and Development (UNCED), informally known as the Earth Summit, held in Rio de Janeiro, Brazil, from 3–14 June 1992.

The treaty is intended to achieve "stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system.

The Kyoto Protocol establishes legally binding commitments for the reduction of four greenhouse gases.

(Carbon Dioxide, Methane, Nitrous Oxide, Sulphur hexafluoride), and two groups of gases (Hydro fluorocarbons and Perfluorocarbons).

produced by "Annex I" (industrialized) nations, as well as general commitments for all member countries. As of 2008, 183 parties have ratified the protocol, which was initially adopted for use on 11 December 1997 in Kyoto, Japan and which entered into force on 16 February 2005

http://unfccc.int/kyoto_protocol/items/2830.php