More than three-fifths – 62.9% – of the world’s coral reefs are badly hurting from a bleaching event that began last year and is continuing.
The world’s oceans last month broke a record for the hottest on record.
62 countries are seeing damaged coral, with Thailand shutting off a tourist-laden island to try to save the coral there.
Meteorologists say a La Nina – a natural cooling of parts of the Pacific that changes the weather worldwide – is forecast to develop soon and perhaps cool oceans a bit, but it may be too little and too late.On top of that are changes in El Nino, the reverse of La Nina and a natural warming of ocean waters; reduced sulfur pollution from ships and an undersea volcano eruption.
In the Atlantic, off the Florida coast and in the Caribbean, about 99.7% of the coral reefs have been hit with “very very severe” losses in staghorn and elkhorn species, in NOAA’s monthly climate briefing.
Parts of the Atlantic where hurricanes often develop had an ocean heat content – which measures water warmth at depths – equivalent to mid-August, said hurricane researchers Brian McNoldy at the University of Miami and Phil Klotzbach at Colorado State University
On the other hand ,’This wouldn’t be happening without climate change’, said the head of the United States’ Coral Reef Watch Program
Ocean temperatures that have gone “crazy haywire” could make the current global coral bleaching the worst in history.It’s so bad that scientists are hoping for a few hurricanes as they cool the oceans.
More than three-fifths – 62.9% – of the world’s coral reefs are badly hurting from a bleaching event that began last year and is continuing.
That’s nearing the record of 65.7% in 2017, when from 2009 to 2017 about one-seventh of the world’s coral died, says Derek Manzello, coordinator of the US’s National Oceanic and Atmospheric Administration (NOAA) Coral Reef Watch Program. When water gets too hot, coral, which are living creatures, bleach and sometimes die.
Coral reefs are key to seafood production and tourism worldwide. Scientific reports have long said loss of coral is one of the big tipping points of future warming as the world nears 1.5 degrees Celsius (2.7 degrees Fahrenheit) of warming since pre-industrial time. That’s a limit that countries agreed to try to hold to in the 2015 Paris climate agreemen
This is one of the most biodiverse ecosystems on the planet,” said Andrew Pershing, a biological oceanographer who is vice president for science of Climate Central. “It’s an ecosystem that we’re literally going to watch disappear in our lifetimes.”
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