EARTH HOUR PICTURES: Before and After, 2009

EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
EARTH HOUR PICTURES: Before and After, 2009
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EARTH HOUR PICTURES: Before and After, 2009
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Rome Before Earth Hour

The Colosseum shone as brightly as ever until 8:30 p.m. local time on March 28, 2009, when Rome turned off the monument's lights for Earth Hour 2009.

The voluntary, annual global blackout, which aims to ease global warming, began in Sydney in 2007 with the nonprofit WWF. In 2009, 2,712 cities, towns, and municipalities in 83 countries signed up to participate in Earth Hour. The movement is a symbolic gesture in support of action against global warming.

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—Photograph by Gregorio Borgia/AP
 

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