From an editorial in the New York Times:
President Bush has long argued that a nationwide program of mandatory controls on carbon dioxide and other global warming gases would saddle the country with crippling electricity costs. He may be surprised to learn that his own Environmental Protection Agency no longer believes that to be the case.
In the course of a study comparing costs and benefits of various clean air bills rattling around Capitol Hill (including Mr. Bush's Clear Skies program), the E.P.A. found that under a measure sponsored by Senator Thomas Carper, a Delaware Democrat, the cost to electric utilities of controlling carbon dioxide would be only $1 per ton, imposing little burden on consumers and business.