In this photo released by the World Wildlife Fund shows the lights on the Golden Gate Bridge are turned off. Lights on San Francisco landmarks are switched off for one hour today March 29, 2008 at 8 p.m. to...
In this photo released by the World Wildlife Fund shows the lights on the Golden Gate Bridge are turned off. Lights on San Francisco landmarks are switched off for one hour today March 29, 2008 at 8 p.m. to...