The Environmental Protection Agency document specifically cites global warming's effects on air quality, agriculture, forestry, water resources and coastal areas as endangering public welfare.

A controversial e-mail message buried by the Bush administration because of its conclusions on global warming surfaced Tuesday, nearly two years after it was first sent to the White House and never opened.

The e-mail and the 28-page document attached to it, released Tuesday by the Environmental Protection Agency, show that back in December of 2007 the agency concluded that six gases linked to global warming pose dangers to public welfare, and wanted to take steps to regulate their release from automobiles and the burning of gasoline.

The document specifically cites global warming's effects on air quality, agriculture, forestry, water resources and coastal areas as endangering public welfare.

That finding was rejected by the Bush White House, which strongly opposed using the Clean Air Act to address climate change and stalled on producing a so-called "endangerment finding" that had been ordered by the Supreme Court in 2007.

As a result, the Dec. 5 e-mail sent by the agency to Susan Dudley, who headed the regulatory division at the Office of Management and Budget was never opened, according to Jason Burnett, the former EPA official that wrote it.