United Nations Framework Convention on Climate Change
www.unfccc.org 

Food and Agriculture Organization of the United Nations
www.fao.org  

The World Bank
www.worldbank.org   

The World Bank Carbon Finance Unit
www.carbonfinance.org 

The Intergovernmental Panel on Climate Change
www.ipcc.ch  

International Emissions Trading Association
www.ieta.org 

Union Européenne et le système de plafond et d’échange européen
http://ec.europa.eu/environnement/climat/emission.htm

United Nations Environmental Programme
www.unep.org 

Platform for exchange information on CDM project opportunities
www.cdmbazaar.net

Gold standard for voluntary credits
www.cdmgoldstandard.org