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Earth Hour 2009 - lights on Wawel, Krakow, Poland - images from 2.0 Mpx camera ULTICAM K1441

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Uploaded on Apr 7, 2009

On Saturday, March 28, 2009, at 8:30 p.m. local time, 3943 communities in 88 countries of the world joined in the global effort known as "Earth Hour" by turning off lights. The campaign was organized for the third time by the WWF (World Wildlife Fund), to counter the changes to Earth's climate system. Although the phenomenon of human impact on global warming is controversial, we observed active involvement in the action around the world.

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