PPR seminar focuses on controversial proposed rule aimed at combatting climate change.
Two prominent economists introduce new questions into the debate over the social cost of carbon.
Recently passed bill awaits signing in the face of environmentalist cheers and industry fears.
Voluntary programs may not reduce businesses' impact on the environment.
Recently proposed carbon curbing plan in U.S. sparks varied reactions abroad.
February spill raises question of whether coal ash requires federal regulation.
EPA finalized new rules on sulfur in gasoline and tailpipe emissions as part of clean car program.