Tag Archives: Coral reefs

The Great Barrier Reef: a “living, resilient, beautiful system” under growing threat

Scientists told us in early February this year that at 1.5°C the Great Barrier Reef would be toast. See Catastrophic worldwide reef warning is ‘even more dire than we’d previously thought’:

Temperature pushes Great Barrier Reef to tipping point

In this post we find that the 2020 global average surface temperature was 1.25°C hotter than pre-industrial, equal first with 2016, according to The European Copernicus Climate Change Service. This is important for the Great Barrier Reef, because in a little known report in 2013 scientists found that 1.2°C is the warmest compatible with the Reef remaining a coral-dominated system. Focus recently has been on the emergence of annual severe bleaching (ASB) when the affected reefs are effectively dead. Climate change action of the type we are engaged in will only delay the emergence of ASB on average from about 2034 to 2045. Continue reading Temperature pushes Great Barrier Reef to tipping point

Do we really want to save the Great Barrier Reef? Reprise

Bleached coral at Magnetic Island 2020

This post started as a Climate clippings which last appeared in August 30 last year. This post outgrew the CC format and ended up asking again Do we seriously want to save the great Barrier Reef?

Coral bleaching is becoming the new normal

From the New ScientistThe Great Barrier Reef has suffered its most widespread bleaching yet:

James Cook University sacks reef scientist with contrarian views

James Cook University has sacked academic Professor Peter Ridd, he claims because he “dared to fight the university and speak the truth about science and the Great Barrier Reef”. He rejects the scientific evidence linking human activity to degradation of the Great Barrier Reef, and takes the view that the Reef is doing fine.

James Cook deputy vice chancellor Prof Iain Gordon says:

    “We defend Peter’s right to make statements in his area of academic expertise and would continue to do that until we are blue in the face,” Gordon says.

    “The issue has never been about Peter’s right to make statements – it’s about how he has continually broken a code of conduct that we would expect all our staff to stick to, to create a safe, respectful and professional workplace.”

Continue reading James Cook University sacks reef scientist with contrarian views

Saving the Great Barrier Reef – seriously?

Back in February this year Malcolm Turnbull (acting for the Commonwealth Government, of course) stumped up $60 million to future proof the Reef. Now we have Great Barrier Reef gets funding boost as PM tells ‘doomsayers’ to be optimistic. Via the NY Times and Gizmodo There’s $500 million more now to save the Great Barrier Reef:

    including $200 million in funding to reduce agricultural pollution and $100 million for “reef restoration and adaptation,” which includes a project to grow stronger corals in laboratories. Other projects include killing off invasive species like the crown-of-thorns starfish and community engagement and enforcement

Everyone, except the ABC, is telling Turnbull, that’s fine and dandy, but won’t do much good unless we get serious about climate change. Continue reading Saving the Great Barrier Reef – seriously?

Turnbull future proofs the Reef!

Malcolm Turnbull has announced a $60 million package to rescue the Great Barrier Reef. If you believe him!

Here are two headlines, the first from an article from last year by scientists from the Australian Institute of Marine Science:

The second is from the New Scientist (probably pay-walled):

Continue reading Turnbull future proofs the Reef!

Climate clippings 211

1. Planting nearly 100,000 trees per day with drones

We plant about 9 billion trees each year. Unfortunately we also clear about 15 billion, leaving a deficit of 6 billion.

A system of using drones is being developed which could plant trees at 10 times the rate of hand planting and at 20 per cent of the cost by firing germinated seeds into the ground. Continue reading Climate clippings 211

Do we seriously want to save the Great Barrier Reef?

Back on 17 March, 2017 Joshua Robertson’s article in the Guardian Stopping global warming is only way to save Great Barrier Reef, scientists warn reported four things happening simultaneously. First, a paper by 46 scientists published in Nature showed that bleaching of the Great Barrier Reef in 1998, 2002 and 2016 was determined by ocean surface temperature; water quality had nothing to do with it.

Secondly, Terry Hughes, the lead author of the paper was embarking on aerial surveys to chart the effects of the latest 2017 bleaching event, the first in consecutive years, and the first in a non-El Niño year.

Third, Queensland government officials were in Paris meeting with UNESCO officials to appeal for more time to make good on conservation efforts to ward off an “in-danger” listing for the reef. This conservation plan does not mention global warming, concentrating on such things as water quality.

Fourth, Queensland premier Annastacia Palaszczuk went to India to lobby Adani to proceed with its giant coal mine in the Galilee Basin. Continue reading Do we seriously want to save the Great Barrier Reef?

Climate clippings 197

1. Global plan to save 10 per cent of coral reefs

A world-wide plane is being hatched a global plan says only 10 pc of coral reefs to save 10 per cent of coral reefs. The stark fact is that:

    Scientists estimate 90 per cent of the world’s coral reefs will disappear in the next 35 years due to coral bleaching induced by global warming, pollution and over-development.

The 50 Reefs initiative, recently launched at the World Ocean Summit in Bali, in a donor funded initiative to identify the 10% of reefs most likely to survive past 2050. Effectively it’s a triage operation. Continue reading Climate clippings 197

Saving the Great Barrier Reef

Our government seems bent on saving the tourist industry by airbrushing the Great Barrier Reef out of UN reports. The report “World Heritage and Tourism in a Changing Climate”, published jointly by UNESCO, the United Nations Environment Program and the Union of Concerned Scientists, initially had a key chapter on the Great Barrier Reef, as well as small sections on Kakadu and the Tasmanian forests.

The chapter was removed at the request of the Australian government. They were worried the tourists may not come. Continue reading Saving the Great Barrier Reef

Coral reef resilience

reef_200Recently we took a look at the most recent coral bleaching event in Great Barrier Reef will never be the same. John D subsequently sent me a link to an article Obituaries for coral reefs may be premature, study finds by John Pandolfi, Professor, School of Biological Sciences, at The University of Queensland.

So I thought we should take a closer look. Continue reading Coral reef resilience