A combination photo shows the Tokyo Tower before and after its lights were turned off
The lights were switched off around the world at 8:30 p.m. on Saturday evening, to mark the 10th annual Earth Hour, and to draw attention to climate change. The initiative began in Australia in 2007 as a grass roots gesture by the World Wildlife Fund (WWF) Australia against man-made carbon dioxide emissions linked to a warming planet. In 2017, it will involve the switching off of electric lights for an hour in 7,000 cities across 172 countries, at 8:30 p.m. local time, with the aim of highlighting the need to act on climate change, and saving a few megawatts of power in the process.
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Shopping malls are seen before Earth Hour in Nanjing
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A combo picture shows the Eiffel Tower before and during Earth Hour
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A combination photo shows the State Opera house (Staatsoper) before and after the lights were switched off for Earth Hour in Vienna, Austria
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A combination photo shows Belvedere palace and its reflection in a pond before and after the lights were switched off for Earth Hour in Vienna
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A man lights lamps to form the number 60, representing the 60 minutes
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A combination photo shows The Bund on the banks of the Huangpu River
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'Earth Hour' event of Red Square in Moscow
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A combination photo shows a view of China Central Radio and Television Tower
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A combination photo shows the Sydney Harbour Bridge before and during Earth Hour
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A combination photo shows the rides at Luna Park before and during the event
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A combination photo shows the Sydney Opera House before and during the event
#Earth Hour
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