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Two of Australia's most famous YouTube sensations, Natalie Tran (community channel) and The Axis of Awesome, are sent on a mission by Dr Karl to travel to the Great Barrier Reef to find out how it can be saved from climate change, and how we can all help. Axis write a rock song about coral, while Nat falls in love with a baby turtle. Watch it, share it, take the Earth Hour Pledge!
Take the Earth Hour Pledge and go into the draw to win a holiday to the Great Barrier Reef - go to earthhour.org.au