Earth Hour itself has entered the period of 5 years since 2007, Earth Hour itself was organized by WWF, started in 2007 in Australia, with 2.2 million people and 2,000.
Attempts to turn off their lights for one hour in the fight against climate change. Only one year later, Earth Hour has become a global event with 50 million people participating worldwide, according to the Earth Hour website. The year 2010 was a year of Earth Hour is the largest with 128 countries and territories participating.
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