The lights on the Lions Gate bridge are off during Earth Hour 

The lights on the Lions Gate bridge are off during Earth Hour as seen from West Vancouver, British Columbia, Saturday, March 23, 2013. (AP Photo/The Canadian Press, Jonathan Hayward)
Associated Press
The lights on the Lions Gate bridge are off during Earth Hour as seen from West Vancouver, British Columbia, Saturday, March 23, 2013. (AP Photo/The Canadian Press, Jonathan Hayward)
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