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Showing posts with label Great Barrier Reef. Show all posts
Showing posts with label Great Barrier Reef. Show all posts

Sunday, March 26, 2017

Coral, climate change, storm surges and #CycloneDebbie


Article originally published at nofibs.com.au

Tropical Cyclone Debbie is forecast to cross Central Queensland coast on Tuesday morning as a Category 4 Severe tropical cyclone. It will bring destructive winds greater than 200km per hour plus a storm surge with a king tide innundating low lying coastal properties, and torrential rain causing flooding. It is also cooling sections of the Great Barrier Reef reducing coral bleaching from an extensive and long lasting marine heatwave.

Update: 25,000 people in Mackay ordered to evacuate due to storm surge threat.
Update: Coal mines and coal ports affected.

Tropical Cyclone Debbie draws heat from the unusually warm waters of the Coral Sea. This will help it increase in intensity to achieve possibly Category 4, and an outside chance as a Category 5 severe tropical cyclone before it strikes land.

It is the first tropical cyclone to strike the north Queensland coast since Cyclone Nathan in March 2015. Although it may not be as strong, it is being compared in size and extent to the Category 5 cyclone Yasi from 2011.

Sunday, February 26, 2017

Great Barrier Reef facing back to back coral bleaching from elevated sea surface temperatures



Record sea surface temperatures in the coral sea are again threatening massive coral bleaching on the Great Barrier Reef for the second year in a row. If sea surface temperatures don't cool in the next few weeks, this will be the first time there has been back to back bleaching on this scale.

“In the last week, divers and scientists have reported bleached corals on popular tourist reefs around Cairns and on reefs near Townsville.” said Imogen Zethoven Australian Marine Conservation Society Great Barrier Reef Campaign Director.

Vast swathes of the Great Barrier Reef have also been placed on red alert (Alert Level 1) for the next four weeks, as an indicator that coral bleaching is likely. Parts of the Far Northern, Northern and Central Reef are on the even higher Alert Level 2, indicating mortality is likely.

Corals south of Cairns, in the Whitsundays and in parts of the Far Northern Reef, that were badly hit last year, are at mortal risk.

Tuesday, February 7, 2017

Worst Great Barrier Reef bleaching event to ‘become commonplace’



Last year during the 2016 Federal election I felt great despair about the Great Barrier Reef. It was clear that Politicians were offering token funding to the Great Barrier Reef already facing extinction. It is already a climate emergency.

The Great Barrier Reef is not going to survive our experiment with global warming. Even if we could magically keep average global temperatures to below two degrees Celsius, it will be very much diminished, such is the great inertias involved in the climate system which we have irrevocably changed.

Sunday, November 20, 2016

Julie Bishop signs Second Because the Ocean Declaration



Australian Foreign Minister Julie Bishop sure has the gift of the gab with fine rhetorical statements on Australia’s strong targets (ahem), that presently commits the world to 4 degrees C or more of warming.

I caught up with her on Monday night of the second week of COP22 in a high level event at the French Pavillion. She was there with several other ministers to sign the second ‘Because the Ocean declaration’ to improve ocean and reef conservation efforts as part of the UNFCCC climate change process. (See details on signing the First Declaration in Paris at COP21 here)

She highlighted the Australian Government’s 2015 Reef 2050 plan, and $2 billion over 10 years to reduce water pollution affecting the Great Barrier Reef at both this event and later in her ministerial statement to COP.

Wednesday, June 22, 2016

Love in the Time of Coral Reefs



A powerful song by singer songwriter Ruth Mundy - Love in the Time of Coral Reefs

Thank you Ruth. It made me cry, and it made me angry.

Human induced Ocean warming and ocean acidification have doomed coral reef ecosystems and the Great Barrier Reef.

Thursday, June 16, 2016

Polling shows most Australians want reef prioritised over coal #ReefElection


79 per cent of voters who read the Sydney Morning Herald either "strongly agree" or "agree" that the health of the Great Barrier Reef should be prioritised over coal mining.

Analysis of Fairfax Media's YourVote tool, which is similar to Votecompass in gauging online readers' beliefs to determine their political leanings, shows that out of about 63,000 responses, about 79 per cent either "strongly agree" or "agree" that the health of the Great Barrier Reef should be prioritised over coal mining. Yet both the Labor and Coalition parties have prioritised coal over coral.

Related:

Bandaids for an unmitigated reef catastrophe #ReefElection


Image: Malcolm Turnbull, Greg Hunt, Ewen Jones travelling to Magnetic Island. Photo: Greg Hunt/twitter. Article first published using storify at nofibs.com.au

A promise by the Prime Minister to divert $1 billion in Clean Energy Finance Corporation (CEFC) funding to improve reef catchment water quality and reduce greenhouse gas emissions has been soundly criticised as legally problematic, inefficient and far below the funding scientists say is required to Save the Reef.

This video, published on 2nd June 2016 from the Climate Council, articulates the climate change threat facing the reef, with statements from tourism operators, marine scientists and climate scientists.

Tuesday, May 31, 2016

Politicians offer token #ausvotes funding to Great Barrier Reef facing extinction. It is a climate emergency



We need to come to terms that the Great Barrier Reef ecosystem and coral reef ecosystems globally as we know them, are facing extinction. It is a climate emergency. The reef is our canary in a coalmine and it is now dying from the greenhouse gases we have released.

Early surveys of the Great Barrier Reef showed that 93 percent of reefs were affected by coral bleaching. Scientists have been undertaking extensive aerial and underwater surveys since then to refine these initial survey results. Scientists from the Coral Reef Centre of Excellence are now reporting that over 35 percent of coral north of Cairns in the northern and central regions are now dead or dying.

The impact of coral bleaching changes dramatically from north to south along the 2300km length of the Reef.

“We found on average, that 35% of the corals are now dead or dying on 84 reefs that we surveyed along the northern and central sections of the Great Barrier Reef, between Townsville and Papua New Guinea,” says Professor Terry Hughes, Director of the ARC Centre of Excellence for Coral Reef Studies at James Cook University (JCU).

“Some reefs are in much better shape, especially from Cairns southwards, where the average mortality is estimated at only 5%. This year is the third time in 18 years that the Great Barrier Reef has experienced mass bleaching due to global warming, and the current event is much more extreme than we’ve measured before."

“These three events have all occurred while global temperatures have risen by just 1 degree C above the pre-industrial period. We’re rapidly running out of time to reduce greenhouse gas emissions.” concluded Terry Hughes.

Saturday, May 28, 2016

Australian Government censors UNESCO report on Great Barrier Reef #ReefGate



A UNESCO report identifies World Heritage sites at risk from climate change, but there is no mention of Australian sites in the report. The Australian Government requested that all mentions be deleted, and this was complied with by UNESCO. This censorship of science should raise many questions.

Friday, April 29, 2016

Guest Post: Great Barrier Reef bleaching would be almost impossible without climate change


I have followed climate change and marine science for about 10 years. This latest climate attribution research by Australian climate scientists shows clearly that the massive coral bleaching on the Great Barrier Reef would not have occurred without human caused climate change. It is attribution climate science done in near real time. Cutting edge stuff.

The researchers also dispel arguments that this coral bleaching event was due to the strong El Nino this year, but primarily long term temperature warming of oceans. It underlines that coral reef ecosystems face a bleak future with coral bleaching events from warm waters being a regular occurrence in as little as 20 years time.

Read and weep, and then focus your anger on the intransigence of many politicians, first in denial then, like Environment Minister Greg Hunt who pay lip service and make nominal commitments, while supporting the agents of greenhouse gas emissions in approving the massive Adani Carmichael Coal mine.

Great Barrier Reef bleaching would be almost impossible without climate change

Andrew King, University of Melbourne; David Karoly, University of Melbourne; Mitchell Black, University of Melbourne; Ove Hoegh-Guldberg, The University of Queensland, and Sarah Perkins-Kirkpatrick, UNSW Australia

Thursday, April 21, 2016

Coral Bleaching prompts Australian Environment Ministers: Strong and urgent action needed on climate change


This article was originally published at nofibs.com.au

In a late night conference call on Wednesday night 20 April 2016 between Federal Environment Minister Greg Hunt, Queensland State Environment minister Steven Miles and Environment ministers from other states it was agreed that what is currently happening on the Great Barrier Reef is alarming and is an issue of concern not just to Queenslanders but to all Australians.

Ministers all agreed that strong and urgent action was needed on climate change.

Townsville MP Ewen Jones praises #coal as #Reef suffers massive coral bleaching


Original article published at nofibs.com.au

Ewen Jones is the Liberal Party Federal MP from the Townsville based north Queensland electorate of Herbert. He stated on the ABC QandA program on Monday night, "We have just had the Carmichael mine approved and I think that is a good thing for us."

Both the Liberal National Party Federal Government and the Labor Queensland State Government have approved for development the huge Adani Carmichael coal mine in the Galilee basin in Queensland. But the coal mine is widely seen as a major climate carbon bomb that would make achieving the under 2 Degree C temperature target adopted in Paris as impossible.

At current coal prices and with the coal export market to India and China tanking, development of the mine is seen as simply un-economic in current circumstances without massive government subsidies. And that is exactly what Liberal MP Ewen Jones proposed on ABC QandA program on Monday night.

Monday, April 11, 2016

Attenborough on the Great Barrier Reef, sea level rise and climate change


Did you watch the first part of David Attenborough's documentary on the Great Barrier Reef?

This is a remarkable documentary with filming ending just as the reef was undergoing massive coral bleaching due to exceptionally warm waters caused by climate change. This is the third global coral reef bleaching event on record.

Attenborough first visited and documented the reef 60 years ago. Part one of the three part series contains an allegorical story from the Cairns area about sea level rise from the aboriginal dreamtime.

The Great Barrier Reef, geologically speaking, is a relatively recent phenomena. Sea levels were 70 to 90 metres lower during the Ice Age period with a narrow and steep shoreline where the east coast of Australia fell sharply to deeper waters. Sea levels started to rise at the end of the last ice age about 14,000 years ago.

Sunday, April 3, 2016

Labor Premier Palaszczuk approves Adani #coal mine leases furthering reef and #climate destruction



Original article published at nofibs.com.au

This morning (Sunday 3 April) the Queensland Mines Minister Anthony Lynham and Queensland Premier Annastacia Palaszczuk issued a joint statement for approval of mine leases for the Carmichael coal mine and rail project in Queensland's Galilee Basin. Their statement was widely condemned by environment and climate organisations.

The mine lease approval comes on the tail of the worst coral bleaching event on record for the Great Barrier Reef. Researchers found that 95 per cent of the northern 1000 km of the reef system up to Torres Strait was badly bleached. We know this is a direct consequence of climate change. There is no record of extreme coral bleaching events before 1998. See the ABC 7.30 Report on the extreme bleaching event caused by climate change, or read Graham Readfearn writing in the Guardian newspaper on the Link between fossil fuels and Great Barrier Reef bleaching clear and incontrovertible.

Sunday, March 27, 2016

Massive coral bleaching on Great Barrier Reef while Environment Minister applies bandaid funding

There have been many reports of extensive coral bleaching on the Great Barrier Reef. Here are the sea surface temperature anomaly for the 14 day period to 1st March 2016, as provided by BOM's Reeftemp application. Unusual and extensive ocean warming has extended down the eastern Australian coast.



Ove Hoegh-Guldberg and Tyrone Ridgway in an article at The Conversation identify that "The bleaching is currently focused on the pristine reefs north of Cooktown, driven by water temperatures that have persisted at 1.0-1.5℃ above seasonal averages since mid to late January 2016, and calm and still weather conditions over recent weeks."

Friday, August 22, 2014

Coral reef ecosystems acidifying 3 times faster than open ocean


New research shows that the rate of ocean acidification in coral reef ecosystems is more than three times faster than in the open ocean, much more than previously thought. This has big implications for reef ecosystems around the globe suffering under multiple stressers of increased sea surface temperatures, nutrient and other pollution and commercial fishing pressures.

Biogeochemist researchers from Southern Cross University Led by recent graduate Dr Tyler Cyronak detailed this new insight in a study published in Geophysical Research Letters titled Enhanced coral reef acidification driven by regional biogeochemical feedbacks.

Ocean acidification is well documented in open waters. Cold waters like in the southern ocean can more readily absorb carbon dioxide, so ocean acidification was thought to be proceeding more rapidly in marine ecosystems in cooler waters (see my 2007 article: Scientists say Ocean Acidity Increasing at Faster Rate)

This new research highlights that coral reef waters are also rapidly acidifying. This research examined studies done in coral reefs since the 1960s and found that the rate of acidification in coral reef ecosystems was more than three times faster than in the open ocean.

Saturday, February 1, 2014

Coal barons and climate change driving Great Barrier Reef destruction


Let's get this straight. Australian politicians are allowing some of the richest Australian billionaires combined with Chinese and Indian power corporations to destroy the Great Barrier Reef, one of the natural wonders of the world and a World Heritage site. Political approval of mining the guts out of the coal rich Galilee basin in Central Queensland destroys sensitive ecosystems like the Bimblebox Nature Reserve containing threatened species, and is forecast to substantially lower the water table impacting rural communities and agricultural productivity with possible repercussions on flow in the Great Artesian basin aquifer.

This coal will be exported through Queensland ports, but substantial dredging is required with the dredge spoil to be dumped in the marine park waters damaging the reef. The increase in ship movements will also imperil the reef. The increased CO2 emissions when the coal is burnt will also cause ocean acidification and climate change both of which are, you guessed it....damaging the coral reef systems and the Great Barrier Reef.

Related: WWF:Fight for the Reef | Australia courting danger with the Great Barrier Reef : Greenpeace - Abbot Point Dredging – Who’s really to blame? | Greenpeace petition at SavetheReef.org.au

Tuesday, October 2, 2012

Guest Post: Calls for climate action as Great Barrier Reef suffers major coral loss


By Charis Palmer, The Conversation

The Great Barrier Reef has lost half its coral cover in the last 27 years, and it could halve again by 2022 say researchers from the Australian Institute of Marine Science.
A study published today in the Proceedings of the National Academy of Sciences, found storm damage drove 48% of the loss, the crown of thorns starfish 42%, and bleaching 10%.

Wednesday, March 7, 2012

Greenpeace activists say Coal ship highlights 'Reef in Danger'

Greenpeace activists targeted a bulk coal carrier in Gladstone harbour early this morning. They painted 'reef in danger' on the side of the ship around dawn from two inflatable boats to highlight the massive expansion of coal port facilities and shipping through the World Heritage listed Great Barrier Reef. The action was undertaken to highlight the threat to the Greet Barrier Reef from industrial development and expansion to a UNESCO team visiting Queensland to assess the dangers to the Great Barrier Reef and it's World Heritage status.

Related: Greenpeace Report -Boom Goes the Reef: Australia’s coal export boom and the industrialisation of the Great Barrier Reef (PDF) | Greenpeace - Live Action! A painted picture for UNESCO

"With the UNESCO team arriving in Gladstone today, we wanted the message to be very clear," Greenpeace spokeperson Julie Macken told AAP. The UNESCO team is expected to spend two weeks in Australia assessing the threats to the reef.

Sunday, February 5, 2012

Sea Cucumber poo moderates impact of ocean acidification on coral reefs

Ocean acidification is a major threat to coral reefs and other marine zooplankton and creatures using calcium carbonate shells. Marine and Climate scientists working at the University of Sydney's research station, One Tree Island, on the Great Barrier Reef have discovered that sea cucumber poo increases the alkalinity of the reef water providing a buffer to the increasing acidity caused by ocean acidification.

It is a vital marine process that provides some buffer to corals with the impacts of ocean acidification. "We have found that sea cucumbers play a vital role in reducing the harmful impact of ocean acidification on coral growth," said Professor Maria Byrne, the director of One Tree Island Research Station.