What global warming looks like on a decadal scale
by Zach Labe, 30/01/2022 on Twitter
Changes in temperature by decade – the warming trend globally is just so striking
by Zach Labe, 30/01/2022 on Twitter
Changes in temperature by decade – the warming trend globally is just so striking
Achieving zero greenhouse gas emissions (GHG) will probably not be enough on its own to stop and reverse the process of global warming. We have allowed the warming to continue long enough to have triggered positive feedbacks from various natural sources. The rising GHG emissions from these will drive global temperatures ever higher. However, if we can reach zero emissions fast enough, we should be able to slow the rate of global warming for long enough to give some more time to geoenineer enough carbon capture and sequestration and/or solar heat reflection technology to stop and reverse the warming. We already know how to achieve zero emissions for electrical power generation and the electricity grid, so it only needs for us vigorously start the task NOW!
A couple of recent articles explain what is required. I’ll quote the slightly more comprehensive article here from The Conversation. A derivative article in Undark (associated with MIT University) gives a tighter focus on the technology per se.
by Charles F. Kutscher & Geoffrey Logan, 13/01/2022 in The Conversation
A 21st-century reinvention of the electric grid is crucial for solving the climate change crisis
In the summer of 1988, scientist James Hansen testified to Congress that carbon dioxide from burning fossil fuels was dangerously warming the planet. Scientific meetings were held, voluminous reports were written, and national pledges were made, but because fossil fuels were comparatively cheap, little concrete action was taken to reduce carbon emissions.
Then, beginning around 2009, first wind turbines and then solar photovoltaic panels decreased enough in cost to become competitive in electricity markets. More installations resulted in more “learning curve” cost reductions – the decrease in cost with every doubling of deployment. Since 2009, the prices of wind and solar power have decreased by an astonishing 72% and 90%, respectively, and they are now the cheapest electricity sources – although some challenges still exist.
Read the complete article….
Australia has the know-how to do all of this. What the country lacks is the political will and regulatory environment to make it happen. At least since the Abbott led LNP COALition government assumed power in 2013 has worked assiduously to subsidize (Australia Institute: In 2020-21, Australian Federal and state governments provided a total of $10.3 billion worth of spending and tax breaks to assist fossil fuel industries.) and protect its already super-wealthy special interest patrons any kind of government or popular infringements on GHG emitting operations and businesses. This support has been backed up by a continual barrage of humbug, denial, fake news, disinformation, legislative blocking, and misdirection. For their brain fogging techniques see: How decades of disinformation about fossil fuels halted U.S. climate policy; Climate Change Disinformation and How to Combat It; The Climate Denial Machine: How the Fossil Fuel Industry Blocks Climate Action; How Big Oil Lost Control of Its Climate Misinformation Machine; Wikipedia: Climate change denial; see also my 2017 presentation “Positive Feedback and the Evolution of Human Culture“. Capt. Humbug (a.k.a. Scotty from marketing), his deputy Blarney Barney (the man with the hat), and their large troop of wooden-headed puppets are still using these techniques very effectively to stifle any progress towards serious action to resolve the climate emergency.
We Australians don’t have to put up with this longer than a few more months. Short of staging a Trumpist style coup to retain government, it is entirely within our power as voters to replace all the puppets with trustworthy people who will put organizing climate action as their top priority if elected to government. Vote Climate One is producing Traffic Light Voting Guides to help you achieve this – but without telling you how to vote. Basically we are setting out to provide information on every candidate in every electorate that you can use to guide your preferences to maximally support maximize preferences for those you think should have the job while being doubly sure than you don’t preference anyone likely to pass their preferences to an electable puppet of the special interests.
With an environmentally friendly Parliament, we can be working on the very serious work of surviving the climate emergency.
Jena Booker, 28/01/2022 in Grist
Extreme weather is destroying more crops. Taxpayers are footing the bill
In this part of his narrative, David Spratt leaves the polar regions he discussed in Part 3, to see what is happening to tropical forests (and other habitats). Tropical forests, notably including the Amazon Rainforest, are switching from sinks removing greenhouse carbon from the atmosphere to emitting greenhouse gases as they struggle to adapt to increasing temperatures.
Photosynthesis, the biochemical process that uses energy from light to shift electrons around to combine 6 CO₂ and 6 H₂O (water) molecules to make sugar (C₆H₁₂O₆, the basic carbohydrate that both fuels and forms the basis of most living matter) involves a complex cycle of enzymatic and electron transfer steps that are temperature sensitive. For most plants living in moderate climates, the rate of photosynthetic carbon capture increases as they get warmer, until, inescapably, there is a point (called the thermal maximum) when steps in the process begin to fail, causing the the rate of carbon capture to decline rapidly as temperature rises further. Also as the plant is increasingly stressed by rising temperature it burns more carbohydrate to fuel repair and maintenance so its CO₂ emissions also begin to rise rapidly. Spratt explains:
26 January 2022
by David Spratt in Climate Code Red
Fourth in a series.
Read 1 | 2 | 3 | 4 | 5 | 6 | 7
The plant-based terrestrial biosphere may be understood as including the world’s land-based plants, soils, derived dead organic matter, such as litter, and soil organic matter.
Plants photosynthesis uses carbon dioxide and water to produce sugar (glucose) and oxygen. Around 30% of the additional carbon dioxide (CO₂) produced by human actions has been drawn down from the atmosphere (mitigated) by increased plant photosynthesis. This adds to the land-based sink of stored carbon. But plants also respire, for example at night and in winter, by converting oxygen and stored glucose back into water and carbon dioxide.
As the planet continues to warm, a point of warming is reached — the “thermal maximum for photosynthesis” — after which combination of the rate of photosynthesis decreasing and the rate of respiration increasing results in the net flux of CO₂ from the atmosphere decreasing.
Together with more severe droughts and wildfires that also add to plant-based CO₂ emissions, the total amount of carbon stored in the terrestrial biosphere (the land sink) then starts to fall. This may be understood as a tipping point, a threshold beyond which large change is initiated in the terrestrial biosphere.
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Brazil’s Amazon basin forest emitted more CO₂ than it has absorbed between 2010 and 2019: it gave off 16.6 billion tonnes of CO₂, while drawing down only 13.9 billion tonnes. “We half-expected it, but it is the first time that we have figures showing that the Brazilian Amazon has flipped, and is now a net emitter,” said study co-author Jean-Pierre Wigneron. Another study concluded that southeastern Amazonia, in particular, is acting as a net carbon source (total carbon flux minus fire emissions) to the atmosphere.
Read the complete article…..
Spratt’s article here refers mainly to tropical forests flipping from net GHG carbon sinks to net GHG emitters. The added GHGs then serve as positive feedback to increase the planetary greenhouse effect and thus force global average temperatures higher. What he does not discuss here (but may cover in subsequent parts of this series) is that boreal forests from the temperate to arctic zones are also flipping from being major carbon sinks to being even more potent emitters. This is due to the increasing number, extent, and ferocity of wildfires turning living and dead biomass into GHGs, combined with setting on fire especially carbon rich peat soils, releasing still more GHGs; and in the Arctic, contributing to the thawing of permafrost releasing still more GHGs including methane from the decomposition of methane hydrates stored in and under permafrost. These flips from sink to emitter begin slowly, but because of feedback amplification the flip may go to completion quite abruptly. (Last year I researched and wrote in some detail about how these processes work in the Siberian permafrost region: Portents for the Future – 2020 Wildfires on the Siberian Permafrost).
This is scary stuff. There is a large and rapidly accumulating body of evidence showing that humans started global warming started with the carbon emissions of our Industrial Revolution. We have probably reached a point where positive feedbacks will continue driving global temperatures higher even if we achieve zero emissions. At this point there is no evidence that anything we have done to reduce anthropogenic emissions is slowing the accelerating rise of any of the three major greenhouse gases, or that we are reversing the growth of global average temperatures. If we do not actually stop and reverse the warming, continuing positive feedbacks over the next few decades will drive us and the biosphere we need for our survival through the gates of Hell to a world that will be too hot for most species of life (including us) to survive.
I have said many times, and will undoubtedly say many times more that the fossil fuel industry special interests, its puppet representatives in many of the world’s governments, and friends in the print and social media have over the last 40 or so years until now managed quite successfully to deny, mislead, misrepresent, distract, delay, or block any effective action against their greenhouse gas emissions or their profits from thermal power generation. In Australia, beginning with the Abbott Government the LNP COALition and a few fellow-traveling independents & minor parties have been almost totally effective in preventing ANY very effective action to stop global warming (i.e., by doing everything they can think of to keep us on the downhill road to mass extinction and the end of the human species.
If we are to leave our only planet in a state where our children and grandchildren will have a future, Capt. Humbug and his wooden headed puppets must be removed from Parliament and replaced by trustworthy people who have committed if they are elected, to place action on the global climate emergency as their first priority in office.
Vote Climate One’s Traffic Light Voting System explains how you can use australia’s preferential voting system to do this.
Kim Heacox – 29/01/2022 in the Guardian
Birds are remarkable and beautiful animals – and they’re disappearing from our world
Continuing from David Spratt’s look in Part 2 of his guidebook at evidence that the West Australian Ice Sheet is beginning to collapse; here, in Part 3 he turns his attention north, to signs that Greenland’s Ice Sheet is also beginning to collapse. As before, we are looking at the impacts of a probable sequence of events along the global warming road to Earth’s Hothouse Hell. These are leading us to what Steffen et al. described as the Earth System’s Hothouse (see the featured graphic above) in their 2018 Proceedings of the National Academies of Science paper, Trajectories of the Earth System in the Anthropocene. The potentially cascading impacts of these events were also summarized in Lenton et al’s 2019 comment paper in Nature, Climate tipping points — too risky to bet against. An additional danger is that these may also cascade rapidly to cause a large change abruptly. The bottom line is that if we cannot stop the warming and backtrack to a lower temperature world, we cannot avoid the Hothouse and the road will end in the mass extinction of most species of complex life on our only planet, including ourselves.
There is no evidence that anything other than a rapidly mobilized war effort by humans will stop the cascade passing the point of no return to runaway warming and global mass extinction. If we want to leave any kind of future to our children and grandchildren, we had better pay heed to the warning signs that Spratt is pointing out, and start mobilizing and acting NOW!
by David Spratt in Climate Code Red
Third in a series.
Read 1 | 2 | 3 | 4 | 5 | 6 | 7
“The Arctic is screaming”, says Mark Serreze, Arctic climate expert at the US National Snow and Ice Data Center.
Arctic warming is racing ahead of the worst-case estimates, now heating four times faster than the global average, and the region is undergoing abrupt climate change, understood as a transition of the climate system into a different mode on a time scale that is faster than the responsible forcing. In other words, it has passed a tipping point for rapid, system-level change.
Researchers say that the Arctic “is currently experiencing an abrupt climate change event … climate models underestimate the abruptness of the recent changes observed in the Arctic (and) climate models underestimate this ongoing warming”. [Models do not account well for warming due to sea-ice loss, but losing the reflective power of Arctic sea ice in the summer months would advance the 2ºC threshold by 25 years”.]
Read the complete article…..
If we do nothing to stop the inexorable warming process we started with the proliferating carbon burning used to fuel the Industrial Revolution and our continuing competition to control the world the Climate System will complete its flip into Earth’s Hothouse Hell state. It will be very unlikely that we can avoid the hothouse and extinction along with the rest of the biosphere that supports our lives.
From the time the Abbott Government was elected in 2013 the LNP COALition Governments (currently under Capt. Humbug, (a.k.a. Scotty from Marketing) and his henchman Blarny Bulldust (The Man with the Hat) have worked hard to protect and and advance the interests of their patrons with special interests in the fossil fuel and related resource exploitation industries. Thus, for nearly a decade, The COALition’s humbug, denial, parliamentary blocking, disinformation, distraction and stupidity has successfully disrupted virtually every attempt to act against greenhouse gas emissions or even to slow the continued expansion of these lethal industries. Every year the COALition has been in power we are that much closer to the point of no return where our extinction is the only plausible outcome.
So what can Australians do to begin improving our odds to avoid the Hothouse Hell? One very obvious action is to replace the COALition government with people we can trust to put action on the climate emergency at the top of their goals in office and who have the capacity to organize and lead Australia’s mobilization of a global effort to stop and reverse global warming.
Our Traffic Light Voting System explains how we can help you do this without telling you how to vote.
Kathryn Harrison & Simon Donner, 26/01/2022 in The Conversation
The climate crisis demands courage not optimism
Added comment: The authors seem to take the IPCC’s complacent assumptions that reaching zero emissions will be enough to solve the climate crisis. There are strong reasons for thinking the situation is actually far more serious – multiply emphasizing their conclusion that the Canadian Parliament must recognize the need to mount a global war effort if our species is to survive.
This post continues David Spratt’s account of how we humans seem to be passing critical tipping points in the dynamics of Earth’s Climate System initiating the positive feedbacks of runaway global warming to Earth’s Hothouse Hell. Steffen et al. described the dynamics and existential consequences of this process in their 2018 Proceedings of the National Academies of Science paper, Trajectories of the Earth System in the Anthropocene. The feature graphic above from that paper maps out alternative destinations we can reach from where we are now. There are two roads,
Thanks to the technologies we began developing in the Industrial Revolution we have fueled our endless competition with one-another to control our one world with the increasingly profligate burning of fossil carbon to increase greenhouse gas concentrations in the atmosphere. Rising temperatures are then initiating a variety of other temperature-related positive-feedback processes emitting more greenhouse gases or having other effects to increase the rate of temperate rise that has started us down the road to Earth’s Hothouse Hell.
When the positive feedback reaches a point where it can sustain further temperature increases, it can be said that it has passed a tipping point, that may begin a rapid cascade of further tipping points as described in Lenton et al’s 2019 comment paper in Nature, Climate tipping points — too risky to bet against. There is no evidence that anything other than a rapidly mobilized war effort by humans will be able to stop the cascade passing the point of no return to runaway warming and global mass extinction. If we want to leave a future to our children and grandchildren, we had better pay heed to the warning signs that Spratt is pointing out, and start mobilizing and acting now.
by David Spratt in Climate Code Red
Second in a series. Read 1 | 2 | 3 | 4 | 5
The Thwaites Glacier in West Antarctica has an eastern ice shelf 45 kilometres wide as it flows into the Amundsen Sea. On 13 December 2021, scientists announced that the ice shelf is likely to break apart in the next five years or so, resulting in a speeding up of the glacier’s flow and ice discharge, possibly heralding the collapse of the glacier itself, and triggering similar increases across the Amundsen Sea glaciers.
The researchers explain: “Over the last several years, satellite radar imagery shows many new fractures opening up… which like a growing crack in the windshield of a car [can] suddenly break apart into hundreds of panes of glass. We have mapped [the] pathway the fractures might take through the ice [and conclude] the final collapse of Thwaites Glacier’s last remaining ice shelf may be initiated … within as little as five years” (emphasis added).
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The fracturing of the ice shelf means more warm water will penetrate under the ice sheet, helping to free the underbelly of the glacier from the grounding line rock underneath, and allowing water to flow into the deep basin under the glacier, causing the glacier’s collapse. This would raise sea levels by 65 centimetres, though the timing of such collapse — the “doomsday” scenario — is highly uncertain. Since neighbouring glaciers flow into the same basin, the demise of Thwaites could eventually lead to the loss of all of the West Antarctic Ice Sheet (WAIS), resulting in more than three metres of sea level rise, and putting at risk the lives and livelihoods of 250 million people.
Read the complete article…
There is no doubt that observable and understandable evidence from the real world that Spratt, I and others point out is telling us that we are on the road to Earth’s Hothouse Hell and the current climate emergency is already dire and getting worse. In the face of this truly existential crisis, Australia is governed by Captain Humbug’s LNP COALition. Based on watching and listening to them in action, they are a troop of wooden-headed puppets, charlatans, knaves and pathological liars.
Their COALition’s focus in Parliament seems to be protecting the special interests of their patrons in the greenhouse-gas emitting fossil fuel industries and related exploiters of Australia’s resources. Beginning with the holier than thou Abbott and currently led by Capt. Humbug (Scotty from marketing) and Blarney Bulldust (the man with the hat), as long as the COALition has been in government, their constant flow of humbug, legislative blocking, denial, disinformation, disruption, distraction etc., has effectively protected their patrons by stifling the mobilization of any real action on the climate emergency (e.g.., stopping GHG emissions cold).
Vote Climate One understands and accepts the real world evidence that humanity faces a genuinely existential crisis: we’ll soon become extinct if we do not stop and reverse global warming. Our group was formed with the single goal – to create some hope for the future by helping the Australian people remove Capt. Humbug and his nasty and evil troop from our Federal Parliament by replacing the puppets and knaves with honest parties and individuals who have convinced us that they can be trusted to place acting on climate change as their first order of business in Parliament.
Our Traffic Light Voting System explains how we can help you do this without telling you how to vote.
David Nield – 23/01/2022 in Science Alert
Climate Change Could Open Up ‘Rivers in The Sky’ Over East Asia
Sourced from: Carnae et al. – 01/12/2021 in Geophysical Research Letters
Atmospheric Rivers Bring More Frequent and Intense Extreme Rainfall Events Over East Asia Under Global Warming
In the last 150 years, greenhouse gases have spiked to never before seen levels. Global masss extinction will result if these are not reversed,.