Add your name to the world's biggest climate change demonstration [ Po.st Link ]
2016 has been declared the hottest year on record, with 16 of our 17 warmest years having happened since 2000
Now more than ever, it's urgent for us to show governments, businesses and the rest of the world that climate change matters to us.
Switch out your lights for one hour and take part in #EarthHourUK on 25...
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