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An outbreak of coral bleaching-the loss of corals' food-producing algae-in the Pacific and the Caribbean occurred this past summer, most likely tied to a brewing El Niño. The reefs of the Florida Keys observed their worst bleaching impacts since 1997-1999, when a major El Niño was quickly followed by a major La Niña. The surprising intensity of bleaching across multiple ocean basins in 2014 has scientists wondering what to expect in 2015, when El Niño is forecasted to finally develop. [Source: NOAA Climate.gov]
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