Global warming is now officially considered a threat to U.S. national security.

For the first time, Pentagon planners in 2010 will include climate change among the security threats identified in the Quadrennial Defense Review, the Congress-mandated report that updates Pentagon priorities every four years.

“It would be myopic in the extreme to view the flow of oil to the United States as a legitimate national security issue but to view the flow of foreign capital into Treasury securities as a matter of no particular concern.”