Great Barrier Reef teeters on UNESCO's 'in danger' status after Coral Sea's hottest summer in 400 years

Scientists have been able to look at corals like tree rings to work out how warm the Coral Sea has been each summer across four centuries. They say the results reveal an alarmingly urgent need to turn around the trajectory of climate change.

Great Barrier Reef teeters on UNESCO's 'in danger' status after Coral Sea's hottest summer in 400 years

Great Barrier Reef teeters on UNESCO's 'in danger' status after Coral Sea's hottest summer in 400 years

Great Barrier Reef teeters on UNESCO's 'in danger' status after Coral Sea's hottest summer in 400 years

Great Barrier Reef teeters on UNESCO's 'in danger' status after Coral Sea's hottest summer in 400 years
Great Barrier Reef teeters on UNESCO's 'in danger' status after Coral Sea's hottest summer in 400 years
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