Coral reefs are in hot water: Could upwelling save the day?

Coral reefs do best in warm water, but when the water gets too hot, they bleach. Upwelling, which brings cooler water from the deeper parts of the ocean, occurs worldwide, including where coral reefs can be found. With climate change, ocean temperatures are increasing and coral bleaching events are happening more frequently. Could upwelling help protect coral reefs from hot water?

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