Despite La Nina, Ocean surfaces have not cooled enough to end the worst global coral bleaching event on record. What this means is that many reefs, including the Great Barrier Reef, are again under a rising risk of bleaching and mortality for the coming months. This is unheard of. Never before has a mass coral bleaching event lasted for so long or extended through the period of natural variability related ocean surface cooling called La Nina. Perhaps more ominously, the global coral bleaching and die off that began in 2014 may now be a practically permanent ocean feature of the presently destabilized world climate system.
Cool La Nina is Over
According to NOAA, the periodic cooling of ocean surfaces in the Pacific called La Nina is now over. And since La Nina brings with it a variable related low point of broader Earth surface temperatures, after a…
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