Death of world's coral reefs a 'tipping point' in climate-driven ecosystem collapse', scientists say

The last two years were Earth’s warmest on record, with marine heatwaves that stressed 84% of the world’s reefs to the point of bleaching and, in some cases, death, researchers found

Coral reefs sustain about a quarter of marine life.

Global warming is crossing dangerous thresholds sooner than expected, with the world’s coral reefs now in an almost irreversible die-off.

Scientists have said that marks the first “tipping point” in climate-driven ecosystem collapse.