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The Great Barrier Reef should be put on a list of World Heritage Sites that are "in danger" over harm caused by climate change, according to the UN's cultural body. As American troops pull out of Afghanistan, the Taliban is already making substantial territorial gains. We'll be finding out just how far they have progressed. And a new study claims that the Earth has a “pulse” - a destructive “heartbeat” that beats every 27.5million years causing extinctions, eruptions and floods. We find out more.