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Earth Hour Pictures: Before and After

The organizers behind the fifth annual Earth Hour urged people to turn off lights and other nonessential appliances in a symbolic show of support for action against climate change and for energy conservation in general. In 2010, 128 countries and territories took part in Earth Hour. Eighty-nine national capitals participated, as did nine of the world’s ten biggest cities, thousands of other communities, countless businesses, and hundreds of millions of individuals, according to WWF, the international conservation nonprofit that organizes Earth Hour. Earth Hour 2011 was even larger, said organizers, who called Earth Hour 2011 “a record breaking year for the annual lights-out event.”

Athens Before

Athens During

Jakarta Before

Jakarta During

Rio de Janeiro Before

Rio de Janeiro During

via National Geographic