Warning: INSERT command denied to user 'dbo256360593'@'' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:402:\"INSERT command denied to user 'dbo256360593'@'' for table 'captcha_sessions'\nquery: INSERT into captcha_sessions (uid, sid, ip_address, timestamp, form_id, solution, status, attempts) VALUES (0, '2136bcebf06544e24671b008bc88bdd5', '', 1576021983, 'user_login_block', '7c944ae7d19a22c400aa0f595be7bd66', 0, 0)\";s:5:\"%file\";s:88:\"/homepages/45/d175009339/htdocs/tahoetowhitney.org/sites/all/modules/captcha/captcha.inc\";s:5: in /homepages/45/d175009339/htdocs/tahoetowhitney.org/includes/database.mysqli.inc on line 134
Massive 40-50 Percent Great Barrier Reef Coral Losses

Massive 40-50 Percent Great Barrier Reef Coral Losses

Alex Wierbinski's picture

By Alex Wierbinski - Posted on 31 October 2019



Measuring Massive Reef Destruction
Great Barrier Reef turning to algae.David Wachenfeld, Triggerfish Images.
Repeated disturbances from climate change and deteriorating water have changed some reefs from coral to algae. David Wachenfeld, Triggerfish Images.


Massive 40-50 Percent Great Barrier Reef Losses

Great Barrier Reef Island Coral Decline,
ARC Centre of Excellence for Coral Reef Studies, October 27, 2019.


40-50% GBR Coral Declines
"A long-term study of coral cover on island groups of the Great Barrier Reef has found declines of between 40 and 50 percent of live, hard corals at inshore island groups during the past few decades."

"...the data was so alarming that they checked and re-checked it."

"...researchers surveyed coral cover on fringing reefs of the Palm, Magnetic, Whitsunday and Keppel Island groups along the central and southern Great Barrier Reef, and compared it to historical records."

Time Frame
"...researchers have monitored the condition and trends of inshore reefs in the Great Barrier Reef Marine Park (GBRMP) since the late 1990s."

Key Factors of Decline
"...two key drivers consistently stood out for all reefs: temperature stress from marine heatwaves and wave exposure."

“There was a clear threshold of heat stress above which coral cover consistently declined. We were surprised to find that corals on these inshore reefs appear to have a lower heat stress threshold than previously reported.”


Recent Coral Research Review


Oct 2019
Inevitable Southern Ocean Acidification Tipping Point Approaches


Aug 2018
Lobotomizing the Web of Life: Coral Escape Limits


Aug 2018
OCEANS, CHEMISTRY, & CLIMATE: Cooking Up a Toxic Brew


April 2018
Ocean Life: Hope for Great Barrier Reef, Remnants to Survive a Hundred Years?


April 2018
Anthropocene, Climate Change News, 2018: Warming Times, Coral on the Way Out


Nov 2017
Can corals survive climate change?


Oct 2017
Saying Goodbye: Coral


In the meantime, ocean and atmospheric temperatures are steadily increasing...


More from the ARC

Video: Tracking Antarctic Currents

Antarctic bottom water & El Nino flow videos



Science as Art, Nature as Beauty
National Computational Infrastructure Austrailia,
Fantastic Supercomputer Simulations of Nature's Beauties,
YouTube Channel.





News of Man & Nature, October 2019








Nature News


Climate Destruction News



Bee News

Bear News

Spider Forum

Bird News

Small Mammals

Frogs and Reptiles

Butterfly News


Health and Fitness

Mountain Safety

Mosquito News

Female Trail

High Sierra History


Astro-Phys, Space, & Science News

High Sierra Geology News

Fish, Oceans, & Water News






Great Barrier Reef, coral, ocean, research, ARC Centre, massive, losses, climate change


Powered by Drupal, an open source content management system

Latest News: RSS FEED

Syndicate content

Support Tahoe to Whitney

The Tahoe to Whitney Trail Guide and Magazine are walked, written, funded, and supported by my efforts, with the help of kindred spirits and my sister.

We offer valuable Trail Guide, Skills, Weather, News and Analysis.

My goal is to get you out to see your natural and social potential. Help me keep this unique resource accessible and expanding towards its potential. We've a lot of miles to cover ahead...

If you feel these efforts are valuable, I'm cordially inviting you to support them, here:



I am currently working towards publishing the completed guide between Tahoe & Yosemite as an e-book, while converting this "blog" to a fine magazine format. You will like the results! Help Tahoe to Whitney reach its potential!


Why Support Tahoe to Whitney?
Mission Statement

Warning: INSERT command denied to user 'dbo256360593'@'' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:400:\"INSERT command denied to user 'dbo256360593'@'' for table 'accesslog'\nquery: INSERT INTO accesslog (title, path, url, hostname, uid, sid, timer, timestamp) values('Massive 40-50 Percent Great Barrier Reef Coral Losses', 'node/2555', '', '', 0, '2136bcebf06544e24671b008bc88bdd5', 238, 1576021983)\";s:5:\"%file\";s:87:\"/homepages/45/d175009339/htdocs/tahoetowhitney.org/modules/statistics/statistics.module\" in /homepages/45/d175009339/htdocs/tahoetowhitney.org/includes/database.mysqli.inc on line 134