an interactive website that allows individuals to calculate the amount of carbon dioxide they emit from their daily activities and also provide them with the chance to offset their emissions

allows you to determine how much carbon dioxide you emit in your day-to-day life, providing mechanisms to offset these emissions

the Bush administration's voluntary program to reduce greenhouse gas emissions in the United States

a voluntary industry-government partnership that encourages companies to develop long-term comprehensive climate change strategies and set greenhouse gas (GHG) emissions reduction goals

encourages individuals and businesses to help stop climate change by signing up for the Challenge online, using the online calculator to determine CO2 emissions, and to pledge to take action to reduce these emissions

a community of people convened by the Guardian newspaper committed to reducing their CO2 emissions, focusing upon energy conservation and waste reduction, through making weekly pledges and recording their actions against their pledges

the US Energy Information Administration allows any company, organization or individual to establish a public record of emissions, reductions, or sequestration achievements in a national database

brings together Australians from all walks of life who want to reduce our greenhouse pollution and avoid dangerous climate change

a consumer campaign to spark a zero emission vehicle (ZEV) marketplace with a pledge to make your next new vehicle purchase a ZEV