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Continue to Chathttps://www.telegraph.co.uk/news/earth/earthnews/7531183/Big-Ben-in-darkness-as-4000-cities-switch-off-for-Earth-Hour.html
https://www.telegraph.co.uk/news/earth/earthnews/7531183/Big-Ben-in-darkness-as-4000-cities-switch-off-for-Earth-Hour.html