Associated Press - Associated Press
NASHVILLE - U.S. Sen. Lamar Alexander plans to help introduce a clean air proposal early this year that exceeds the regulations proposed by President Bush.
As a new member of the U.S. Senate's Environment and Public Works Committee, the Tennessee Republican will join with Democratic Sen. Tom Carper of Delaware to introduce the Clean Air Planning Act, which would cap U.S. carbon emissions - a cause of global warming - for the first time.
Their proposal would cut sulfur dioxide emissions by 82 percent by 2015, emissions of nitrogen oxides by almost 68 percent by 2015, and mercury emissions by 90 percent by 2015.
It also would cap carbon dioxide emissions at today's levels in 2010 and reduce them to 2001 levels by 2015.
Power plants are the greatest industrial source of these four air pollutants.