Is this year’s El Nino Causing Coral Reef Bleaching?

El Nino Southern Oscillation

The El Niño Southern Oscillation (ENSO) is a periodic shift of the ocean-atmosphere system in the tropical Pacific that spreads warm water from one part of the ocean to another and impacts weather around the world. It happens every 3-7 years (5 years on average) and typically lasts nine months to two years.  El Ninos have been implicated in causing coral die-offs since the 1980s.

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