“The time between recurrent events is increasingly too short to allow a full recovery of mature coral assemblages, which generally takes from 10 to 15 years for the fastest growing species and far longer for the full complement of life histories and morphologies of older assemblages.”
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→
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.
“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.”
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
A hundred kilometres of kelp forests off the western coast of Australia were wiped out by a marine heatwave between 2010 and 2013, a new study has revealed.
About 90% of the forests that make up the north-western tip of the Great Southern Reef disappeared over the period, replaced by seaweed turfs, corals, and coral fish usually found in tropical and subtropical waters. Continue reading Climate clippings 120→
On September 28 we had the first anniversary of the dirty big storm the brought down the power pylons in South Australia causing a state-wide blackout, as the Heywood interconnector exceeded capacity and tripped.
Coal India, the largest coal mining company in the world, has announced it will close 37 mines because they are no longer economically viable. That’s around 9 per cent of the state-run firm’s mines.
The government has announced it will not build any more coal plants after 2022 and predicts renewables will generate 57 per cent of its power by 2027 – a pledge far outstripping its commitment in the Paris climate change agreement.
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.
The government has produced the latest State of the Environment Report 2016 which happens every five years. I’ve browsed the report and can say that it has some magnificent photographs.
According to the ABS Australia’s population will be between 36.8 million and 48.3 million in 2066 as against 24 million now. The report says that the key drivers of environmental change are population growth and economic activity.