January 16, 2011 3:01 AM

Northwest's unusually foggy summer mystifies experts

The summer of 2010 was the foggiest on record in the Pacific Northwest, according to a researcher dubbed "Dr. Fog" by his colleagues. California is getting less foggy, and there is increasing concern for the redwoods that hug a swath of the state's northern coast. Fog is considered a critical factor in the health of the giant trees and the rich ecosystem that has grown up around them.

Related content

Suggested for you



Nation & World Videos