CARMA is produced and financed by the Confronting Climate Change Initiative at the Center for Global Development, an independent and non-partisan think tank located in Washington, DC.

The objective of CARMA.org is to equip individuals with the information they need to forge a cleaner, low-carbon future. By providing complete information for both clean and dirty power producers, CARMA hopes to influence the opinions and decisions of consumers, investors, shareholders, managers, workers, activists, and policymakers. CARMA builds on experience with public information disclosure techniques that have proven successful in reducing traditional pollutants.

For several thousand power plants within the U.S., CARMA relies upon data reported to the Environmental Protection Agency by the plant operators themselves as required by the Clean Air Act. CARMA also includes many official emissions reports for plants in Canada, the European Union, and India. For non-reporting plants, CARMA estimates emissions using a statistical model that has been fitted to data for thousands of reporting plants in the U.S., Canada, the EU, and India. The model utilizes detailed data on plant-level engineering and fuel specifications. CARMA reports emissions for the year 2000, the current year, and the future (based on published plans).

CARMA also aggregates data on individual plants to the level of operating companies, parent corporations, and several geographic entities (continents, countries, states/provinces, and cities worldwide, with additional reports for U.S. metro areas, congressional districts, and counties). The database is updated quarterly to reflect changes in ownership, construction, renovation, planned expansions, and plant retirements. CARMA is meant to be a repository of the best available information on power sector carbon emissions. Our policy is to correct any errors or omissions if suggested revisions are verified by an independent third party.

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