Saturday, October 10, 2015

Major coral bleaching crisis spreads worldwide (?)

This utter bulldust is typical of SETH BORENSTEIN  -- though he appears to have been suckered by NOAA operatives.  Warm water is NOT bad for corals.  They are in fact at their most vigorous and diverse in very warm seas like the Torres strait -- which is not far from the equator (at 10.5 degrees South;  Hawaii is 21 degrees North). The warmer the water, the happier the coral. A warmer world would have MORE coral. Periodic bleaching does occur but it is not well understood.  All we know is that corals always bounce back from it fairly rapidly.  You can drop a hydrogen bomb on coral and it will recover. It did at Bikini Atoll

The bleaching of colorful coral is spreading into a worldwide, devastating crisis, scientists say, and they predict it will likely get worse.

Triggered by global warming and the El Nino, record hot ocean water is causing fragile coral to go white and often die, threatening picturesque reefs that are hotspots of marine life, experts say.

The spread of sickly white started more than a year ago in Guam, then devastated Hawaii, infected the rest of the tropical Pacific and the Indian oceans and has now infested Florida and the Caribbean. On Thursday, the National Oceanic and Atmospheric Administration and international reef scientists pronounced it a global coral bleaching event, only the third in recorded history.

No place with coral has been spared, though some regions — such as Hawaii — have been hit harder than others, experts said. Excessive heat stresses the living coral, which turns white and then becomes vulnerable to disease.

"We may be looking at losing somewhere in the range of 10 to 20 percent of the coral reefs this year," NOAA coral reef watch coordinator Mark Eakin said. "The bad news for the U.S. is we're getting hit disproportionately just because of the pattern of the warming."

He called bleaching a crisis, especially with worsening global warming forecast for the rest of the century: "If that's not a crisis, what is?"

Eakin said he's especially concerned about Hawaii, which already suffered through bad bleaching in 2014.

"Hawaii is getting hit with the worst coral bleaching they have ever seen, right now," Eakin said. "It's severe. It's extensive. And it's on all the islands."

In one part of northwestern Hawaii, "the reef just completely bleached and all of the coral is dead and covered with scuzzy algae."

Florida started getting hit in August. The middle Florida Keys aren't too bad, but in southeast Florida, bleaching has combined with disease to kill corals, Eakin said. It has also hit Cuba, Haiti and the Dominican Republic and is about to hit Puerto Rico and the Virgin Islands, he said.

Warm water causes bleaching and ocean temperatures are at record high levels, partly because of steady manmade global warming and partly because of the El Nino, which is an occasional warming of the central Pacific that changes weather worldwide, Eakin said. Add to that Hawaii's "blob," a pool of warm water that has stagnated in the northeast Pacific.

The last super El Nino, in 1997-1998, was the first global bleaching event. A smaller El Nino in 2009-2010 was the second.

So far the 1998 bleaching was worse, but that was the second year of an El Nino and we're in the first of two years now, Eakin said.


Posted by John J. Ray (M.A.; Ph.D.).

1 comment:

Wireless.Phil said...

As far back as 50 years ago, my grand dad used to bring white coral home from trips to Florida, one year he brought back artificially colored coral.
Bleaching has been going on a long time.
Now I doubt you can buy it there now to discourage collection from the coral beds.


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