CARMA -- Carbon Monitoring for Action -- has created a database that tracks the carbon emissions of over 50,000 power plants and 4,000 energy companies around the world. It is the first global inventory of its kind and it seeks to empower the public about one of the largest contributors to global warming, power generation.

Power generation is responsible for 40 percent of total CO2 emissions in the U.S. And as the public becomes increasingly aware of the causes of climate change (and the state begins to regulate emissions) the CARMA database may well become the gateway to determine just which power companies are the best and worst in the world of global corporate citizenry.

The CARMA project is funded through a Washington, D.C., think tank called the Center for Global Development, a nonpartisan research institute seeking to "improve economic and social prospects in poor countries." 

The website presents a Google map that displays the organization's data through different colored and sized dots (red is the worst, green is the best):

The website also offers a great blog called tracking the latest developments in climate policy.

Good 'CARMA' for the energy industry
New website tracks the cleanest and dirtiest power plants in the world.