HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Mountain Mule » Journal
Page: 1

Mountain Mule

Profile Information

Gender: Do not display
Hometown: Colorado Springs
Home country: Colorado
Current location: the Four Corners
Member since: Thu Dec 1, 2016, 01:27 PM
Number of posts: 986

About Me

A survivor of the Great Election Day Hack Attack, so this is not my first ride at the DU rodeo. Given the events of the past year, I have resigned my US citizenship and I await notification about my request for asylum in the Navajo Nation about 20 miles south of my current location. My current country is the bright blue state of Colorado. I have dedicated myself to the destruction of the current oligarchy under which the US is now governed. Direct Democracy is true Democracy!

Journal Archives

Great Barrier Reef suffers its most widespread mass bleaching event on record

Earlier this year, scientists warned that the Great Barrier Reef could be on the brink of its most widespread bleaching event ever recorded. That fear has now been realized.

New surveys conducted by scientists at Australia’s James Cook University and the Great Barrier Reef Marine Park Authority show that a summer of extreme heat has caused the reef, which is a World Heritage Site, to suffer a mass bleaching of unprecedented scale. Corals from the far north to the southern tip of the 1,400 mile-long ecosystem are experiencing severe impacts.

It was also one of the reef’s worst mass bleaching episodes in terms of intensity, second only to 2016, which killed half of all shallow-water corals on the northern Great Barrier Reef.

And unlike the summer of 2016, when an intense marine heat wave coincided with one of the strongest El Niño events on record, this past summer brought a bleaching event without any assistance from the Pacific climate oscillation.

El Niño events can elevate ocean temperatures in that part of the world, making bleaching events more likely. To scientists, this is another clear sign that human-caused climate change is now the primary driver behind these devastating events.

Mark Eakin, coordinator for the National Oceanic and Atmospheric Administration’s Coral Reef Watch program, described the rate of recurrence of these events as “truly disturbing.” Bleaching from the 2016 event was followed by a recurrence in 2017, when there was also an absence of an El Niño.

“In 2016 and 2017, the Great Barrier Reef had their first back-to-back bleaching events. Now we have the third bleaching event in five years,” Eakin wrote in an email.

“That is unprecedented on the Great Barrier Reef.”

Heat stress can be deadly to corals. Bleaching is a response to heat stress that occurs when corals spend too much time in water that’s too hot for them to handle. Exposure to prolonged heat causes the reef-building animals to temporarily evict their zooxanthellae, symbiotic algae in which the corals shelter in exchange for food.


[link:https://www.washingtonpost.com/weather/2020/04/06/great-barrier-reef-coral-bleaching/?itid=hp_no-name_hp-breaking-news%3Apage%2Fbreaking-news-bar|

Australia has had a very bad year and there is no end in sight.
Posted by Mountain Mule | Mon Apr 6, 2020, 11:20 AM (2 replies)
Go to Page: 1