EPA says global warming a public danger.

WASHINGTON (AP) — The White House is reviewing a proposed finding by the Environmental Protection Agency that global warming is a threat to public health and welfare.

Such a declaration would be the first step to regulating carbon dioxide and other greenhouse gases under the Clean Air Act and could have broad economic and environmental ramifications. It also would likely spur action by Congress to address climate change more broadly.

The White House acknowledged Monday that the EPA had transmitted its proposed finding on global warming to the Office of Management and Budget, but provided no details. It also cautioned that the Obama administration, which sees responding to climate change a top priority, nevertheless is ready to move cautiously when it comes to actually regulating greenhouse gases, preferring to have Congress act on the matter.More