Backers Hope New Bipartisan Senate Bill Shows Shift In Clean Air Debate

Environmentalists and other proponents of a newly revised bipartisan clean air bill say key changes to assuage activists and break the logjam over long-stalled multi-pollutant legislation are evidence that the debate is moving in their direction, and see possible gains by Democrats in this year's midterm elections as boosting chances of eventually enacting a bill that would include first-time nationwide controls on carbon dioxide (CO2). But despite the changes, the bill's main author, Sen. Thomas Carper (D-DE), has failed to...