Carbon Finance page at Wikipedia.
Carbon Label California brings together academics, environmentalists, business leaders, and policy-makers to seek to implement a Greenhouse Gas Content Label. Their efforts were behind the introduction of Assembly Bill 19, "The Carbon Labeling Act of 2009."
Carbon Trust is a not for divident UK company that provides greenhouse gas reduction information, consulting and reduction labeling.
Intergovernmental Panel on Climate Change studies climate change and proovides information regarding carbon measurements and accounting. They are on of the most authoritative sources.
Pacific Gas and Electric Carbon Footprint Calculator can show you your carbon footprint due to energy purchases fron this public utility.
PAS 2050 provides a methodology for determining greenhouse gas emissions involved during the entire lifecycle of a product.
Carbon Trust, PAS 2050 How to Assess the carbon footprint of goods and services.
Carbon Label California, http://www.carbonlabelca.org
Carbonstick, http://www.carbonstick.com
Carbon Label Company, http://www.carbon-label.com
Climate Registry, http://www.theclimateregistry.org/
Energy Input Labeling project (M. Ciotola, F. McFarlane, R. Miller), 2005, 2008, http://www.energyinputlabeling.org
Global Reporting Initiative, http://www.globalreporting.org
Intergovernmental Panel on Climate Change, http://www.ipcc.ch
Technocracy, Inc, http://www.technocracy.org
World Business Council for Sustainable Development (WBCSD), http://www.wbcsd.org
World Resources Institute (WRI), http://www.wri.org
Neither endorsement by or of or affiliation with the linked resources is claimed.