CARMA (Carbon Monitoring for Action) is a project by the Center for Global Development that I was peripherally involved in at my old firm, Forum One Communications.
It recently came online and tracks the CO2 output of carbon emitting sources around the world. (Carbon dioxide being one of the causes global warming) It attempts to reveal who are the worse offenders in an effort that through public pressure and resulting market pressure (investors will be turned off by bad publicity) the offenders will clean up their act.
A case of information leading to action.