The Kyoto Protocol to the United Nations Framework Convention on Climatechange, came into force on February 17, 2005, offers three new mechanisms:Emissions Trading, Joint Implementation and the Clean Development Mechanism.

• 于2005年2月17日生效的《京都议定书》,提出了三项具有开拓意义的法律制度:排污权交易、联合履约机制和清洁发展机制。