Environment
Despite a growing renewable energy portfolio which currently generates 4,300 MW as well as a target to be the United States' leading provider of low-cost, clean energy by 2020, the Tennessee Valley Authority (NYSE: TVC) (TVA) is required to pay significant fines for its Clean Air Act violations.
After what appears to be considerable outcry from industry, initial plans by Japan to implement a comprehensive carbon emissions trading scheme by 2013 have been put on hold -- at least until 2014.





