Scientists predict that 70% to 90% of all coral reefs could disappear in the next 20 years as a result of warming ocean waters, ocean acidity, and pollution — marine biologist David Obura explains what’s at risk if stronger action isn’t taken soon.
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Nearly all coral reefs could be wiped out by 2100 due to warming ocean waters, ocean acidity, and pollution. Research shows 16 to 33% of all warm-water reefs have already been affected by severe bleaching, and if we don’t keep climate change in check, the amount and severity of bleaching events are predicted to rise.

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