On Saturday, an international event will be held in 180 countries with 7,000 cities, where hundreds of millions will turn off the lights in homes, workplaces and major tourist attractions for a full hour
Earth Hour, which aims to remind the world of human impact and modern development in the environment, was initiated in Sydney, Australia 2007, at the initiative of the Australian branch of the World Environment Fund (WWF) or World Wildlife Fund. This year's slogan Change climate change
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