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McDONALD S restaurants in Barnstaple will be among hundreds of thousands of businesses and homes around the world to switch off their lights for an hour on Saturday night. The firm s famous golden arches and forecourt will be dimmed from 8.30pm as part of

McDONALD'S restaurants in Barnstaple will be among hundreds of thousands of businesses and homes around the world to switch off their lights for an hour on Saturday night.The firm's famous golden arches and forecourt will be dimmed from 8.30pm as part of the World Wildlife Fund's "Earth Hour" initiative.The charity is encouraging a billion people around the world to sign up to the campaign and join in to encourage world leaders to do more to tackle climate change.