Zach Labe is always a good source of graphics summarizing collections of data on our changing climate Here he shows the melting of sea ice around Antarctica. The horizontal line shows the average extent of sea ice over the era of satellite measurements (beginning in 1978). The red line shows how much smaller extent of sea ice this January so far.
In this article David Spratt explains how we have embarked on this road to Earth’s Hothouse Hell.
These are well established tipping points on the road to runaway global warming. This and my featured image are from Steffen et al.’s 2018 article in PNAS, Trajectories of the Earth System in the Anthropocene.
18 January 2022
Have tipping points already been passed for critical climate systems? (1) The basics
As global heating reduces the extent of floating Arctic sea-ice each summer, the heat-reflecting ice is replaced by heat-absorbing dark ocean water, adding energy to the Arctic system, driving more melting. This is a “positive feedback”, a self-reinforcing change. Examples abound in the climate system. On Greenland, for example, warming is reducing the height of the ice, and this lower elevation means it will melt more, because the temperature is higher at lower altitudes.
Sixteen years ago, James Hansen warned that “We live on a planet whose climate is dominated by positive feedbacks, which are capable of taking us to dramatically different conditions. The problem that we face now is that many feedbacks that came into play slowly in the past, driven by slowly changing forcings, will come into play rapidly now, at the pace of our human-made forcings, tempered a few decades by the oceans thermal response time.”
Those feedbacks can drive non-linear (or abrupt) change that is difficult to forecast. That happened to Arctic sea-ice in the summer of 2007, when a collapse in the ice extent led one experienced glaciologist to exclaim that it was melting “100 years ahead of schedule”; actually, the scientific understanding was 100 years behind reality! The same thing is happening in Antarctica now, according to the new observations of the Thwaites Glacier.
Spratt warns us that more posts will follow in this series. One might relate to the unexpectedly rapid thawing of the Siberian permafrost (H on the map above) that holds at least two times more carbon Earth’s entire atmosphere.
This is something I have researched in detail with my own eyeballs using the original satellite scans. My findings are described in my graphical essay/presentation, “Portents for the Future – 2020 Wildfires on the Siberian Permafrost.” The authors of the tipping point papers Spratt cites and linked generally anticipated thawing of the permafrost would be one of the later tipping points. These authors certainly did not anticipate that all-time record temperatures would be recorded in 2020 above the Arctic Circle (due to Arctic amplification), or how this heat affected the rapid acceleration in frequency, extent, and ferocity of wildfires on the Siberian permafrost.
Spratt and I and a few other generalists (some of us with complex systems engineering backgrounds) can see that what is happening is well outside the boundaries of the IPCC’s super-conservative and bureaucratic approach to climate science that assumes that future climates can be predicted – at least in a statistical sense – by treating climate change as if it followed the universal laws of physics in a statistically repeatable way. However, even the IPCC’s tightly controlled conservative approach that only mentions the possibility of global mass extinction on one out of the 3949 pages of their recently released AR6 Report still shows we are well on the road to climate Hell.
As Spratt notes in the article here and I explain in detail in another graphical essay/presentation circulated earlier this month, “Some fundamental issues relating to the science underlying climate policy: The IPCC and COP26 couldn’t help but get it wrong“, climate change does not behave repeatably as one would expect in physics experiments. Climate is generated by a complex dynamical system of many variables interacting in non-linear and some times actually mathematically chaotic feedback loops such that climate change is actually unpredictable as one looks more than a few weeks into the future.
What this means for our future is that we are moving down the road to Hell farther, faster and sooner than anyone putting total faith in the IPCC’s complacent discussions of emissions budgets and 2050 net-zero targets would believe, and that the government and media puppets of the fossil fuel special interests are happy to refer to in their blizzard of optimistic humbug about a rosy future and keeping a vibrant coal burning industry going so there will be full employment.
The stark reality is that if we cannot very quickly mobilize a global effort to
immediately stop human generated greenhouse gas emissions,
engineer processes to capture and safely sequester a significant proportion of all the carbon in our planetary atmosphere, and
enable to Earth to reflect away with out absorbing a significant fraction of the solar energy received,
we will soon have passed the point of no return where the natural climate feedbacks are warming the world sped up so fast that nothing humans could do would prevent temperatures from running away to Earth’s Hothouse Hell state. That climatic flip would, of course, lead to completion of the global mass extinction event we have already started. Humans would be among the 90% or more of Earth’s biosphere to go extinct (as happened in the End Permian mass extinction).
Our current LNP COALition Government is clearly comprised of puppets of the greedily gluttonous special interests of the fossil fuel and related industries that are exploiting Australia’s natural resources for minimal return to Australia or its citizens. To have any hope of generating effective action on climate change against the blizzard of humbug, lies, misrepresentation, misdirection, alternative facts, fake news, bulldust and blather that members of this government emit to provide subsidy, cover, and protection for their patrons, they must all be removed from office and replaced wherever possible by electingtrustworthy people who have made public commitments to make action against climate change their first order of business.
Vote Climate One is dedicated to helping you achieve this replacement (where needed) in every Federal Electorate by making it easy to use our Australian preferential voting system to full effect. This help is provided via our Traffic Light Voting System. If we can sterilize the pigpen our Parliament has become and replace it with houses of genuine leadership and legislation, we might actually be able to engineer a solution to the climate emergency that provides us with a path into a foreseeable future.
If you agree with the program outlined here, we are seeking like-minded volunteers to help us in this effort to change our Parliament as Climate Heroes or in any other way.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
Beware Australians, under our LNP COALition puppet government we’re also on the menu to be barbecued by feasting special interests — but we still have a chance to change it
With this the article linked here, an American FB friend, Hieronymus Bosch, reminds/warns us Australians just how perilous our freedoms may be if we leave the fossil fuel industry’s LNP COALition puppets in charge of our government for any longer. Aside from controlling or at least disabling Congress, Trump and his puppet followers have also managed to replace/control a majority of the Supreme and Federal Court judges such that now, even with a sort of progressive President, the mighty USA is now little better than China or Russia where the practice of real democracy is concerned.
As demonstrated here, the fossil fuel special interests main aim seems to be to preserve their gluttonous but eventually nihilistic quest to prevent any action anywhere against global warming so they can continue unhindered their quest to turn fossil carbon into an ever increasing volume of greenhouse gases. We can already see that these sill growing emissions are forcing global temperatures higher into the zone that will virtually guarantee Earth’s next global mass extinction, even though such an extinction will almost certainly include their human bodies along with the rest of humanity.
At least til now Australia’s federal and state Electoral Commissions and Courts seem to be intact enough that we can still claim to be a functional democracy where the people retain the power to change the government if they feel the need to do so. However, if we don’t remove the COALition puppets from government in our upcoming Federal Election we may soon end up like Americans – essentially powerless to elect people who will work to protect our futures rather than feeding the burning appetites of the gluttonous special interests of the fossil fuel industries and other exploiters of our resources. See how Vote Climate One and our Traffic Light Voting Guide can help you to remove or prevent special interest puppets in your electorates who want to destroy our futures. With a new government of people who can be counted on to put acting on climate change as their first order of business in office, we may have a chance that our species will have a possible future in a reasonably intact biosphere on our only planet.
Regarding the article that follows, Hieronymus said, “Living in an undemocratic and crashing empire [i.e., my original home country] where corporations have all the money and power. I suppose I shouldn’t be shocked, but DAMN. … Texas’s governor, Greg Abbott, has written to the all-Republican court – half of whose members he appointed – in support of Exxon. He accused the California litigants of attempting “to suppress the speech of eighteen Texas-based energy companies on the subject of climate and energy policies”“.
How Exxon is using an unusual law to intimidate critics over its climate denial
America’s largest oil firm claims its history of publicly denying the climate crisis is protected by the first amendment
Exxon, headquartered in Houston, argues that lawsuits filed by out-of-state politicians infringe on the sovereignty of Texas. Photograph: Reginald Mathalone/NurPhoto/Rex/Shutterstock
ExxonMobil is attempting to use an unusual Texas law to target and intimidate its critics, claiming that lawsuits against the company over its long history of downplaying and denying the climate crisis violate the US constitution’s guarantees of free speech.
The US’s largest oil firm is asking the Texas supreme court to allow it to use the law, known as rule 202, to pursue legal action against more than a dozen California municipal officials. Exxon claims that in filing lawsuits against the company over its role in the climate crisis, the officials are orchestrating a conspiracy against the firm’s first amendment rights.
The oil giant also makes the curious claim that legal action in the California courts is an infringement of the sovereignty of Texas, where the company is headquartered.
Eight California cities and counties have accused Exxon and other oil firms of breaking state laws by misrepresenting and burying evidence, including from its own scientists, of the threat posed by rising temperatures. The municipalities are seeking billions of dollars in compensation for damage caused by wildfires, flooding and other extreme weather events, and to meet the cost of building new infrastructure to prepare for the consequences of rising global temperatures.
If Howard and I are right, we have already passed several tipping points triggering positive feedbacks that will cause global warming to increase exponentially towards a point-of-no return where global mass extinction (including humans) is almost inevitable (he links the same science articles I use in this context). To avoid this end we need to turn the barbecue around to roast the pigs and their wooden-headed puppets first.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
IPCC’s guidance is dangerous in rapidly evolving climate emergency due to time lost for peer review between observing and reporting reality
Introduction: Year by year we are seeing increases in both the basic readings for global warming and in the frequency and severity of extreme weather events attributed to the warming that show we are in the midst of a climate emergency. The Intergovernmental Panel on Climate Change (IPCC) is considered by many scientists (and politicians claiming to be guided by the science) to be the ultimate authority on the likely evolution of global warming and the future risks we face from it. However, the IPCC’s guidance in forecasts and predictions has consistently ignored or underestimated the rising levels of catastrophic and existential risk associated with the accelerating increases.
I don’t dispute the IPCC’s science, as the work leading to it is usually meticulous. But, at the same time, their processes add years of bureaucratic and political delay between the observations of reality and the eventually publications of conclusions from those observations. This means that any guidance offered in IPCC reports and assessments is likely to considerably understate the risks, impacts and rates of global warming. The peer review process and sociological factors in the academic/institutional environments most IPCC authors work in lead authors to minimize dramatic and scary risks irrespective of minimal they might be. These thoughts and their implications are detailed in a January 2022 presentation of mine, “Some fundamental issues relating to the science underlying climate policy: The IPCC and COP26 couldn’t help but get it wrong” on the Researchgate repository .
Slide 3 from my January 2022 presentation.
The article discussed here is an example of recent observations that should greatly change many presumptions in even the most recent IPCC AR6 report.
Carbonate rocks (e.g., limestone, dolomite) in permafrost zones may be global warming time-bombs for methane release.
The article linked here describes an unexpected observation from satellite scans of methane gas concentrations in the atmosphere over Siberia. As the frozen land warms in spring and summer remarkably high concentrations of methane are associated with geological outcroppings of common calcium carbonate rocks such as limestone and dolomite. Carbon is a significant component of these kinds of rock. Ordinarily this carbon is considered to be quite inert in relationship to short-term climate change. The authors were surprised to discover that largest releases of methane (~ 85 times the greenhouse potential of CO₂ over 20 years) in Siberia — not associated with fossil fuel production — were from these rocky areas. The observed behavior of the methane releases suggests these areas represented a risk of becoming global warming time bombs.
ABSTRACT: Anthropogenic global warming may be accelerated by a positive feedback from the mobilization of methane from thawing Arctic permafrost. There are large uncertainties about the size of carbon stocks and the magnitude of possible methane emissions. … Two elongated areas of increased atmospheric methane concentration that appeared during summer coincide with two stripes of Paleozoic carbonates exposed at the southern and northern borders of the Yenisey-Khatanga Basin, a hydrocarbon-bearing sedimentary basin between the Siberian Craton to the south and the Taymyr Fold Belt to the north. [see featured image above] Over the carbonates, soils are thin to nonexistent and wetlands are scarce. The maxima are thus unlikely to be caused by microbial methane from soils or wetlands. We suggest that gas hydrates in fractures and pockets of the carbonate rocks in the permafrost zone became unstable due to warming from the surface. This process may add unknown quantities of methane to the atmosphere in the near future [my emphasis].
When the IPCC’s AR6 was being drafted its authors never encountered or even contemplated many of the discoveries made like the above, or the kinds of NB4 extreme weather events observed over the last 4-6 years (they were “unknown unknowns”)
The IPCC’s (Intergovernmental Panel on Climate Change) 6th Assessment Report that informed COP26 totally missed this risk — the abrupt release of prodigious amounts of greenhouse methane gas from permafrost. They also missed or downplayed many other risks that have only begun to appear as the climate emergency accelerates. My graphical essay, “Some fundamental issues relating to the science underlying climate policy: The IPCC and COP26 couldn’t help but get it wrong“, documents the fact that the IPCC’s claim to provide the best and most stringently peer reviewed scientific understanding of basic physics of Earth’s Climate System is true. However, their scientific methodology is deeply flawed when applied to predicting the rapidly evolving and changing behavior of the large and complexly dynamical Climate System:
By the time the IPCC’s deeply bureaucratic and political review processes result in publication, the work is based on the reality of a world that existed several years ago, not the reality of today’s increasingly rapidly changing world
Research and publishing in academic and institutional environments are deeply (but most subliminally) constrained from publishing novel ideas and scary stuff. This is called “scientific reticence” — a situation that can only be amplified by the requirements that publications are approved by their political sponsors.
Finally, the Climate System involves non-linear and often chaotic feedback interactions of many variables – some of them not at all well understood. Many climatologists come from backgrounds in physics and mathematical modeling is very helpful for understanding the behaviors of mostly linear systems. Climate behavior in the antithesis to this kind of system. Where climate is concerned, modeling is useful for understand what can happen under specific circumstances where most of the variables are controlled. It is inappropriate for long term forecasting.
However, even taking the IPCC’s 6th Assessment Report at face value: “The best peer-reviewed science we have” shows unambiguously that if we don’t stop and reverse global warming very soon, human life on the planet will be faced with a growing crescendo of extreme weather events and climate hell within a few decades at the most.
Today, we are already seeing the beginnings of this crescendo! But there is only one mention of a few sentences in the entire 3949 pages of the full IPCC report of the realistic possibility that if we fail to stop the warming, that runaway global warming will lead to the global mass extinction of most complex life.
The point raised here is that the scientific methodology underlying IPCC reports cannot help but underestimate and down play the full range and magnitudes of risks humans face from the rapidly accelerating climate emergency. This also provides great cover for the fossil fuel industry special interests, the humbugging puppets in our governments that keep spruiking the message that we shouldn’t look up, because there is noting there to see, and the much too compliant press.
To conclude, if we are to find and execute any way to stop and reverse the still accelerating warming of our only planet, we have to begin by replacing all the humbugging puppets in our Federal Government with people able to rationally understand the risks we face who also have the gumption to put acting on the climate emergency as their first order of business if elected to Parliament.
Our Vote Climate One Traffic Light Voting Guide will help you elect candidates in your electorate who are most likely to meet these critria, and equally identify LNP Coalition Members and fellow travelers and those whose preferences might flow in a way that would elect/reelect one of the humbuggers.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
Things are getting worse, but we have seen nothing yet if we don’t stop and reverse the inexorable increase in global warming. “NB4” is an acronym for ‘never before’.
As the world warms, oceans store an ever more solar energy to increase global ocean heating and polar ice melting.
As the following article explains, thanks to the continuing rise in the greenhouse effect caused by the continuing rise in concentrations of CO₂ and methane, our planet continues to capture more solar heat that it can radiate away to space. Some of this excess increases air temperatures. However, most of the excess solar energy goes into ocean heating. Hot oceans heat Earth. The warmer water can melt polar ice covers and heat can be stored for slow release into the terrestrial environment and atmosphere over many years.
The increased concentration of greenhouse gases in the atmosphere from human activities traps heat within the climate system and increases ocean heat content (OHC).
Abstract: The increased concentration of greenhouse gases in the atmosphere from human activities traps heat within the climate system and increases ocean heat content (OHC). Here, we provide the first analysis of recent OHC changes through 2021 from two international groups. The world ocean, in 2021, was the hottest ever recorded by humans, and the 2021 annual OHC value is even higher than last year’s record value…. The long-term ocean warming is larger in the Atlantic and Southern Oceans than in other regions and is mainly attributed, via climate model simulations, to an increase in anthropogenic greenhouse gas concentrations. The year-to-year variation of OHC is primarily tied to the El Niño-Southern Oscillation (ENSO). In the seven maritime domains of the Indian, Tropical Atlantic, North Atlantic, Northwest Pacific, North Pacific, Southern oceans, and the Mediterranean Sea, robust warming is observed but with distinct inter-annual to decadal variability. Four out of seven domains showed record-high heat content in 2021. The anomalous global and regional ocean warming established in this study should be incorporated into climate risk assessments, adaptation, and mitigation.
Excess heat in the oceans will continue to drive further global warming even if we stop all anthropogenic greenhouse gas emissions.
The accumulating heat in the ocean serves as a source of positive feedback to drive global temperatures even higher.
By melting sea ice – the warm water melts ice cover that used to reflect solar heat away from the ocean, allowing it to be absorbed tin warm the water further
By further warming the atmosphere to spread excess heat to the land to warm soils, increase wildfires, thaw permafrost, and warm wetlands – all increasing ‘natural’ greenhouse gas emissions to trap more solar heat
By reducing the solubility of CO₂ and other greenhouse gases in seawater – driving them into the atmosphere where they contribute to further warming and ocean heating
By reducing oxygenation to produce ‘dead zones’ where animals and green plants are suffocated to die and decompose anaerobically producing methane and poisonous sulfide gases.
Vote Climate One’s Traffic Light Voting Guide won’t tell you who to vote for, but it will help you avoid voting for anyone whose preferences are likely to flow to the COALition and their allies. Also, if you think our approach here is a useful one, please consider joining with us to become a Climate Hero.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
Amongst many other growing perils resulting from global warming, as long as we allow our only Earth to go on warming urban firestorms will become more frequent, fiercer, and deadlier. Many of Australia’s close packed and leafy suburbs would also be susceptible to this kind of urban firestorm.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
Wildfires and special interest politics in Colorado paint a similar picture to what we see in Australia
This Denver Post article summarizes the longer term impacts and costs of wildfires to society. This applies to Australia as well as the USA and elsewhere. Despite all the political humbug to the contrary, global warming continues to accelerate.
The picture above shows the smoke plume on 30 December, 2022, when hurricane-force winds in Boulder County whipped fires across drought-parched grasslands and suburban neighborhoods, incinerating 991 structures, including part of a shopping center, a hotel, and a town hall. Two people are still missing, presumed dead. (Aqua-MODIS Satellite view. NASA).
Costs and damages due to wildfires will increasingly overlap and concatenate as fire conditions become hotter, drier, and windier. If global warming cannot be reversed, we will sooner or later have no more forests to catch water, and society will eventually be overwhelmed by fire damage and costs.
The only long term solution will be to attack the cause of the accelerating climate emergency by stopping and reversing the warming. Besides stopping all anthropogenic greenhouse gas emissions, this will almost certainly require global geoengineering. I think this is still possible, but it will take global mobilization of the scale of a war effort to save our biosphere from the heat death in the Hothouse Earth.
Stability landscape showing the pathway of the Earth System out of the Holocene and thus, out of the glacial–interglacial limit cycle to its present position in the hotter Anthropocene (Will Steffen et al. PNAS 2018;115:33:8252-8259
