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Is global warming changing the sex of green turtles?

The future of Australia's green turtles is under threat by climate change – but not how you might think.

Rising sand temperature is leading to an extraordinary change in their population. 99% of hatchlings are now being born female.

Ade Adepitan travels to breeding spot Heron Island, in the Great Barrier Reef, to find out how conservationists are helping to save the reptiles.

Watch the full documentary on BBC Select.