A 2016 article lays out where we were then compared to past extinctions. We are now closer to point of no return. Warming must be stopped!
Coral bleaching in March 2016. Rapid rises of greenhouse gases in the past have been linked to major extinctions in the oceans. XL Catlin Seaview Survey / via the article.
[G]reenhouse gases are rising faster than at any time since the demise of dinosaurs, and possibly even earlier. According to research published in Nature Geoscience this week, carbon dioxide (CO₂) is being added to the atmosphere at least ten times faster than during a major warming event about 50 million years ago.
With increasing CO₂ levels, temperatures and ocean acidification also rise, and it is an open question how ecosystems are going to cope under such rapid change.
Featured image: Moschorhinus kitchingi with Lystrosaurus. Basal Triassic of South Africa. Lystrosurus was one of the few large animals that survived the Permian-Triassic global mass extinction event anywhere on the planet. Source: Creator:Dmitry Bogdanov / Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
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In 1992, 1,700 scientists warned that human beings and the natural world were “on a collision course”. Seventeen years later, scientists described planetary boundaries within which humans and other life could have a “safe space to operate”. These are environmental thresholds, such as the amount of carbon dioxide in the atmosphere and changes in land use.
Crossing such boundaries was considered a risk that would cause environmental changes so profound, they genuinely posed an existential threat to humanity.
This grave reality is what our major research paper, published today, confronts.
Featured image: 19 Australian ecosystems that are already collapsing.In the featured article, clicking on each of the 19 below the article will give a summary of what comprises the ecosystem, its status and the pressures causing its collapse.
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The idea of a ‘tipping point’ is more than academic. Once you trip over it you are on a downhill slide towards Hell at the bottom of the hill
Fig. 2 from the research paper by Beringer et al., 22/03/2022 in Global Change Biology – Bridge to the future: Important lessons from 20 years of ecosystem observations made by the OzFlux network. Summary of the significant scientific and technical outcomes from the OzFlux network after two decades: Blue relates to discovery, information and knowledge outcomes; grey outcomes relate to assessments across site, regional and global scales; yellow refers to the capacity building outcomes for researchers and green indicates technical outcomes for observations and modelling.
by Caitlin Moore et al., 25/03/2022 in The Conversation
From rainforests to savannas, ecosystems on land absorb almost 30% of the carbon dioxide human activities release into the atmosphere. These ecosystems are critical to stop the planet warming beyond 1.5℃ this century – but climate change may be weakening their capacity to offset global emissions.
This is a key issue that OzFlux, a research network from Australia and Aotearoa New Zealand, has been investigating for the past 20 years….
The biggest absorbers of atmospheric carbon dioxide in Australia are savannas and temperate forests…. as effects of climate change intensify, ecosystems such as these are at risk of reaching tipping points of collapse.
Our climate is heading towards Apocalypse. Four factors will probably end humanity if runaway global warming is not stopped by climate action
Thanks to 100 years of extracting burning fossil fuels, the human population has expanded to exploit and control the resources of essentially the entire surface of our planet.
We live on the surface of a sphere of finite size with a fixed surface area, but population growth is almost always exponential (i.e., growth is by multiplication from one generation to the next, rather than addition) — until all the resources are used up. This situation is called ecological overshoot when resources are consumed faster than our world can replace them.
As long as people try to carry on with business as usual the situation gets worse and worse until populations begin to collapse from system breakdown, starvation and disorder in what can become an Apocalypse when the four horsemen come out to play. These situations have occurred locally throughout human history (e.g., in the 14th Century when the Black Death overcame Europe), but now we face a situation that is even more dire.
Not only have we over stretched our limited resources, but the greenhouse gas emissions from our 100-year long frenzy to burn millions of years accumulation of fossil organic carbon has so changed the composition of our planet’s atmosphere that so more solar energy is captured to significantly raise the average temperature of the whole world. In turn, this extra heat has caused changes in the polar regions to capture still more heat — we are now crossing tipping points that lead towards runaway global warming and mass extinction. See my series of posts about David Spratt’s articles on this topic in Climate Code Red for an array of evidence that these tipping points are real.
David Shearman’s article in the political news blog, “The Hill”, featured here, shows a remarkably clear understanding of the ecological aspects of the current apocalyptic crisis I have outlined above. We need to stop the Apocalypse NOW by stopping runaway global warming.
Climate change and loss of biodiversity are the terrible twins working together to threaten human existence. Unfortunately, their wicked problems are accompanied by two equally important drivers of calamity —population and economic growth. These four horsemen gallop in unison and must be considered together.
Stop the Apocalypse? In theory I would say, “Yes we can!”
If it took a much smaller (there were only 3 billion when I was born), and more ignorant population of humans more than 100 years of the industrial revolution using relatively primitive technology to stuff up our atmosphere. If it isn’t already too late….. Given our present population of 8 billion; vastly greater understanding of physics, geology, biology and many other kinds of science; combined with our vastly advanced and powerful technologies we should be able to work out how to recapture our excess emissions and safely put them back into the ground so the Earth can begin to cool.
However, as Shearman’s article shows, society will have to assemble, organize and mobilize a monumentally large and coordinated “global war effort” to have any hope of doing what is needed to avoid total mass extinction and ensure our species’ survival into the future.
In Australia our present LNP COALition Government has made it clear that they will do everything they can to keep shoveling Australian coal on the fire to support and further extend economic growth and business as usual until the very end. Our first step in organizing the war effort to escape the horsemen of the apocalypse must be to replace these puppets of the fossil fuel special interests headed up by Scotty from Marketing.
In Scotty’s own words in one of his pet mediums – something to think about:
Prime Minister Scott Morrison says he is supportive of Australia’s fossil fuel industry – and particularly coal, which he… says will be around for “decades to come”. “When it comes to the coal industry, it’s worth $35 billion to us every year in exports, and that’s money Australia needs to grow our economy,” Mr Morrison said. “What you need in today’s energy economy is you need to continue to run your coal-fired power stations for as long as you possibly can and that is our policy … we want them to run as long as they possibly can.” Coal-fired power stations will continue to run to back up renewable power sources, although Mr Morrison said gas would play a larger role in the energy mix in years to come. Mr Morrison added that building a new coal-fired power station would be difficult because of the state government planning powers, which would “probably never allow them to do it”. For the video see: The Australian, 14/03/2022, Commentary/coal-will-be-around-for-decades-to-come-scott-morrison/video. See also ‘We will keep mining’, says Australian prime minister Scott Morrison about the future of coal.
If that wasn’t enough, here’s a choice of some of Scotty’s thinking about stopping the Apocalypse
We need to turn away from the 4 horsemen of the Apocalypse on the road to hothouse hell, and we won’t do this by continuing with business as usual!
It seems to taken the clear thinking of Greta Thunberg, a 16 year-old girl who concluded school was pointless as long as humans continued their blind ‘business as usual’ rush towards extinction.
Listen to Greta’s speech live at the World Economic forum in Davos 2019. Except for her reliance on the IPCC’s overoptimistic emissions budget, everything she says is spot on that even she, as a child, can understand the alternatives and what has to happen.
In other words, wake up! smell the smoke! see the grimly frightful reality, and fight the fire that is burning up our only planet so we can give our offspring a hopeful future. This is the only issue that matters. Even the IPCC’s hyperconservative Sixth Assessment WG2 Report that looks at climate change’s global and regional impacts on ecosystems, biodiversity, and human communities makes it clear we are headed for climate catastrophe if we don’t stop the warming process.
Scott Morrison and his troop of wooden-headed puppets are doing essentially nothing to organize effective action against the warming. In fact all they doing is rearranging the furniture in the burning house to be incinerated along with anything and everyone we may care about.
In Greta’s words, “even a small child can understand [this]”. People hope for their children’s futures. She doesn’t want your hopium. She wants you to rationally panic enough to wake up, pay attention to reality, and fight the fire…. so our offspring can have some hope for their future. Vote Climate One’s Traffic Light Voting System will help you use your preferential votes wisely on behalf of our offsprings’ future.
Our young ones are walking into an unknown future. Give them hope and not the Ukraine.
Featured image: Four Horsemen of Apocalypse, by Viktor Vasnetsov. Painted in 1887. / Public domain: The author died in 1926, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author’s life plus 95 years or fewer.
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conditions conducive to higher frequency fires. In the coniferous boreal forest, the world’s largest terrestrial biome, fires are historically common but relatively infrequent. Post-fire, regenerating forests are generally resistant to burning (strong fire self-regulation), favoring millennial coniferous resilience. However, short intervals between fires are associated with rapid, threshold-like losses of resilience and changes to broadleaf or shrub communities, impacting carbon content, habitat, and other ecosystem services.
by Buma et al., 22/03/2022 in Scientific Reports
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Satellite data shows the Conger ice shelf has broken off iceberg C-38 and collapsed in Antartica. Photograph: USNIC (From the article)
by Donna Lu, 25/03/2022 in The Guardian
Satellite data shows entire Conger ice shelf has collapsed in Antarctica: Nasa scientist says complete collapse of ice shelf as big as Rome during unusually high temperatures is ‘sign of what might be coming’
Featured Image: Sketch of the Antarctic coast with glaciological and oceanographic processes. 7 April 2000. / Author: Hannes Grobe, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany via Wikimedia / Permission: Own work, share alike, attribution required (Creative Commons CC-BY-SA-2.5)
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Yale Climate Connections‘ Bob Hensen discusses and explains the unimaginable heat episodes observed at in north and south polar regions
A research caravan seen from above by a research drone in early 2020 on the East Antarctic Plateau south of Concordia Station. Concordia recorded its highest temperature in more than 15 years of data collection on March 18, 2022 – a date when temperatures are normally closer to their winter lows than summer highs. (Image credit: Pete Akers via Article)
by Bob Hensen, 23/03/2022 in Yale Climate Connections
The bloodless term “anomaly” doesn’t do justice to the stupendous temperature departures seen across parts of both the Antarctic and Arctic in mid-March 2022. With the initial shock now behind them, scientists are taking stock of exactly what happened and what it might portend.
Read the complete article….
Featured image: The high temperature at Concordia Station, Antarctica, on March 18, 2022, soared above any temperature on record, even from midsummer, in data going back to 2013. (Image credit: Eric Lagadec, via ASTEP from the Article).
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Studies show that global warming ramps up El Niño to intensify dangerous weather extremes to create more extensive human suffering
Crew members land a boat in front of residential homes after surveying floodwaters in Windsor on March 9, 2022 during flooding in Sydney, Australia. Credit: Lisa Maree Williams/Getty Images (via Article)
‘Brown carbon’ from burning forests, tundra, and peat soils drives temperatures higher in positive feedback loop with increasing global temps
Taken by NASA’s Aqua satellite on January 4, 2021, this image shows smoke from fires burning in southeastern Australia. NASA says it is likely that some of the white patches above the smoke are pyrocumulonimbus clouds, which resemble violent thunderstorms and can form above intense fires. Credit: NASA Earth Observatory image by Joshua Stevens. Picture via Australia’s “firenadoes” summon images of Hiroshima, atomic bombs By Dawn Stover | January 14, 2020 in Bulletin of the Atomic Scientists.
Source: Cell Press, 18/03/2022 in Science News
Wildfires devastate the land they burn, and they are also warming the planet: The 2021 wildfire season broke records globally, leaving land charred from California to Siberia. The risk of fire is growing, and a recent report warned that wildfires are on track to increase 50% by 2050. These fires destroy homes, plant life, and animals as they burn, but the risk doesn’t stop there. Researchers detail how the brown carbon released by burning biomass in the northern hemisphere is accelerating warming in the Arctic and warn that this could lead to even more wildfires in the future.
Featured Image: Several wildfires in the Sakha Republic, in and around the Arctic Circle, Russia (Lat: 66.88913, Long: 150.72075) – July 20, 2020 – Enhanced natural colors with IR overlay – Contains modified Copernicus Sentinel data [2020], processed by Pierre Markuse – Image is about 77 km wide. / Downloaded from Flikr
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Featured Image: Great Barrier Reef, Australia. From the article, (undated) by Adele Pedder, “Protecting the Coral Sea-the Cradle to the Great Barrier Reef” in The UN Chronicle. Shows a healthy reef populated by many different animals from corals to fish.
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