141. Southern Ocean current reverses for first time, signalling risk of climate system collapse

I am in two minds about publishing this. Is it believable? I hope not – Barry

Southern Ocean current reverses for first time, signalling risk of climate system collapse

The reversal of ocean circulation in the southern hemisphere could double current atmospheric concentrations of CO₂ / ICM-CSIC

By bne IntelliNews July 5, 2025

A major ocean current in the Southern Hemisphere has reversed direction for the first time in recorded history, in what climatologists are calling a “catastrophic” tipping point in the global climate system.

The development, which was confirmed by Spanish marine scientists at El Institut de Ciències del Mar (ICM-CSIC) in Barcelona, has triggered widespread alarm among climate scientists due to its potential to accelerate global warming and destabilise weather patterns worldwide.

“The stunning reversal of ocean circulation in the Southern Hemisphere confirms the global climate system has entered a catastrophic phase,” said climate activist Ben See in a post on social media.

The collapse involves the deep overturning circulation in the South Atlantic — part of the global conveyor belt of ocean currents, which typically pulls cold, nutrient-rich water up from the ocean floor and drives planetary heat distribution.

The study, published on July 2, identifies a collapse and reversal of the Deep Western Boundary Current (DWBC) in the South Atlantic — a key part of the Atlantic Meridional Overturning Circulation (AMOC).

This current system plays a crucial role in regulating global temperatures and storing atmospheric carbon dioxide in the deep ocean. The ICM’s data show that the flow of the DWBC current reversed from northward to southward for several consecutive months in 2023 — the first such event in 30 years of continuous monitoring.

“This is an unprecedented observation and a potential game-changer,” said physicist and lead author Dr Marilena Oltmanns, who warned the changes could “alter the Southern Ocean’s capacity to sequester heat and carbon.”

According to the ICM-CSIC, the reversal is likely linked to an ongoing weakening of the Antarctic overturning circulation, a deep-ocean process driven by the formation of cold, salty water masses near Antarctica. That system has slowed by up to 40% since the late 1990s, and the new findings suggest it may be destabilising regional ocean dynamics more rapidly than expected.

There has been a lot of speculation that the whole AMOC (otherwise known as the Gulf Stream), could come to a halt. The AMOC brings warm water to Europe from the equator, and when it stops flowing that will lead to a mini-ice age in Europe with winter temperatures dropping by 10-30C. While scientists are 98% certain that the AMOC will stop flowing by 2100, recent studies suggest that the collapse could come as soon as this year,  or at least in the next few decades.

The ICM report warns that the reversal of the DWBC could also unleash vast amounts of carbon dioxide currently trapped in deep-ocean reservoirs. The reversal will undermine the ocean’s role as a carbon sink, which currently absorbs about 25% of all anthropogenic CO₂ emissions.

“This could double current atmospheric CO₂ concentrations by releasing carbon that has been stored in the deep ocean for centuries,” the report said. Such a release would likely obliterate existing climate targets, as the additional emissions would overwhelm current carbon budgets and render mitigation strategies based on gradual reductions, obsolete.

“The planet is sending us increasingly clear signals that we are crossing critical thresholds,” the ICM warned, characterising the event as a shift from “chronic climate stress” to “acute systemic breakdown.”

The reversal threatens to weaken the ocean’s crucial role as a carbon sink — one of the Earth’s key natural defences against rising atmospheric CO₂ — and will also dramatically disrupt global weather systems, sea level patterns, and marine ecosystems.

The Mediterranean is as hot as bathwater

The event coincides with an unprecedented marine heatwave in the Mediterranean. A Spanish metrological buoy recorded a sea temperature of 31C on July 4 – as hot as a lukewarm bath. The northwestern Mediterranean Sea has recorded a temperature anomaly of +6.21°C above the 1982–2015 average, part of a pattern of record marine heatwaves that scientists say are reshaping entire ecosystems.

The northwestern Mediterranean Sea is currently 6.21°C above the 1982–2015 average, creating what scientists have called “bathwater” conditions in a historically temperate basin. Warmer surface temperatures could further stall or disrupt ocean currents, feeding a dangerous feedback loop of warming and current instability.

While ocean circulations have shifted in the deep past due to glacial cycles, the current reversal is the first to occur in modern times due to anthropogenic climate change. Researchers now warn of increased risk of abrupt changes in monsoon patterns, fisheries collapse, and a rapid sea-level rise in the Southern Hemisphere. They are calling for immediate global attention and a reassessment of climate adaptation strategies in light of what may be a new and more volatile climate regime.

“The stunning reversal of ocean circulation in the Southern Hemisphere confirms the global climate system has entered a catastrophic phase,” said climatologist Ben See on social media.

The reversal of the current will bring cold water up from the deep in which is trapped CO₂. That means the reversal, “could double current atmospheric CO₂ concentrations by releasing carbon that has been stored in the deep ocean for centuries,” the El Institut de Ciencies del Mar said.

“The planet is sending us increasingly clear signals that we are crossing critical thresholds,” the Institut added.

140. Post-Growth Social Realignment

In today’s post by Tim Morgan he concludes that in our situation, intensifying competition for dwindling resources is likely to drive a disorderly rather than a structured and organised transition to a post-growth social realignment.

Not sure what a post-growth social realignment entails, I sought the advice of ChatGPT:

A post-growth social realignment refers to the broad and often fundamental changes in society that occur when an economy moves away from the goal of continuous economic growth and begins to prioritise well-being, sustainability, and resilience instead. This shift affects not only economic policy but also cultural values, social structures, and political power dynamics.

Key elements of a post-growth social realignment:

  1. New values and priorities
    • Societies begin to value quality of life over quantity of goods.
    • Success is measured less by GDP and more by things like health, community strength, environmental integrity, and time affluence (free time).
  2. Restructuring of work and livelihoods
    • Paid work may become less central; informal work, care work, and community activities grow in importance.
    • More people might work part-time or in subsistence, local, or cooperative economies.
  3. Decentralisation and localisation
    • Power and resources may shift from national or corporate centres to local communities.
    • Local food, energy, and social networks become more important as globalised systems contract or prove unreliable.
  4. Change in consumption patterns
    • Reduced emphasis on material consumption and status goods.
    • Simpler lifestyles, reuse, repair, and local exchange are favoured.
  5. Social and political shifts
    • Governments and institutions may be forced to adapt by supporting more equitable resource distribution, local decision-making, and ecological limits.
    • New alliances form around common interests in health, fairness, environment, and security.
  6. Redefinition of prosperity and progress
    • Prosperity is seen as the ability to live well within ecological limits.
    • Progress is measured by regeneration, not expansion.

In short, a post-growth social realignment describes how societies reorganise themselves socially, politically, and economically when the underlying assumption of infinite growth is abandoned. It is both a consequence of ecological and economic necessity and a conscious reimagining of what a good life and fair society look like.

131. Has Growth Ended? – A Review

Read the full article here: https://surplusenergyeconomics.wordpress.com/2025/05/29/304-has-growth-ended/

Dr. Tim Morgan’s article asks a big question: Has economic growth come to an end? He thinks it might have—and not just because of politics, bad decisions, or short-term problems, but because of something much deeper: the limits of energy and nature itself.

What’s the article about?

Morgan believes the global economy may have hit a turning point in 2023. Up until now, we’ve kept pushing for more growth—more money, more production, more consumption. But he argues that the real economy (what we physically do and make) is no longer keeping up with the financial economy (what we imagine through loans, debts, and stock markets).

He says the gap between what we think we have and what we actually do have is getting wider, and that spells trouble.

What’s causing the slowdown?

The main issue, according to Morgan, is energy. Everything we do—building houses, growing food, running hospitals—relies on energy, especially oil, gas, and coal. However, it now requires increasingly more energy just to extract that energy from the ground. This is referred to as the Energy Cost of Energy (ECoE).

The higher the ECoE, the less energy is left over for the rest of the economy to grow. Morgan says we’ve reached the point where the energy “surplus” is shrinking. That’s why prosperity—the ability of ordinary people to live comfortably—is already falling in many countries.

What does the future look like?

If Morgan’s right, we’ll see:

  • A steady decline in real wealth over the next 25 years.
  • Fewer things people can afford beyond basic needs (what he calls a collapse in “discretionary” spending).
  • Financial systems are under strain because they’re based on the idea that growth will continue forever.
Is there anything we can do?

Morgan doesn’t give a lot of solutions in this piece, but he does hint that we’ll need to:

  • Be more realistic about what the future holds.
  • Stop pretending we can grow forever.
  • Find ways to live well with less.
Final word

Dr. Morgan’s message is profound: the era of endless economic growth is over. We now need new ways to think about prosperity—ones based on what really matters, not just money and markets. This article is a great starting point for that conversation.

129. The Reductionist Delusion: How We Got Climate Change Wrong

May 27, 2025|Art Berman

climate-complexity-and-the-limits-of-reductionist-thinking

The failure of the climate movement isn’t just political or scientific—it’s philosophical. At its core is a reductionist mindset: isolate one culprit, pursue one goal, rally around one fix. Fossil fuels became the villain, CO₂ emissions the metric, and renewables the savior—embraced more for narrative simplicity than system reality. Missing was any serious reckoning with energy, complexity, ecological limits, or human behavior. If fossil fuels caused the problem, then renewables must solve it. Doubt didn’t fit the script.

Figure 1. The Reductionist Mindset–Fossil Fuels the villain, CO₂ the metric, renewables the savior. End of discussion. Source: Labyrinth Consulting Services, Inc.

But the real story is more tangled. Modern civilization was built on fossil fuels. They weren’t just a side-effect of progress—they were its engine. Especially after World War II, oil, coal, and gas fueled everything: industrial expansion, population growth, military power, and the rise of global trade. The abundance of cheap energy made complexity affordable and growth seem infinite.

Climate science emerged in this very context. In 1958, Charles Keeling began measuring atmospheric CO₂. His curve showed a steady rise, even as the world raced deeper into fossil dependency. By the 1970s, scientists were warning that doubling CO₂ could dangerously heat the planet. But at that same moment, the U.S. faced oil shocks—gas lines, school closures, inflation—and energy security, not climate, drove the agenda. Coal made a comeback. Natural gas gained favor. Renewables entered the conversation quietly, not as climate tools, but as buffers against foreign oil.

That separation never really healed. Climate change was treated as a future externality, while energy policy remained a present-tense strategy of supply and control. Fracking, for example, didn’t spread because it reduced emissions—it exploded because it reduced oil imports and trade deficits. Climate goals followed energy trends, not the other way around. And because energy itself was never understood as a system, climate-change advocates incorrectly believed we could swap renewables for fossil fuels and keep everything else the same.

Reductionist thinking led to energy blindness—and that blindness doomed the climate movement. Its advocates still don’t grasp that electricity makes up only a small slice of total energy use for a reason: its applications, while impressive, are inherently limited. Renewables were assumed to be plug-and-play replacements for fossil fuels. They ignored density, intermittency, scale, and material inputs. They ignored what energy actually does: fueling the machinery of global extraction, transport, manufacturing, construction, and trade—most of which can’t be electrified at the scale modern civilization demands. The entire industrial superorganism runs on a kind of metabolic intensity fossil fuels uniquely deliver. Subtract that, and you don’t just lose emissions—you lose capabilities.

But climate policy never really faced that. It isolated carbon as the problem, treated the atmosphere as the domain of action, and left the civilization it emerged from largely untouched. The public was promised a clean transition. The idea that we could decarbonize without decomplexifying was treated as not only possible, but inevitable.

Figure 1. Modern civilization will collapse without fossil fuels. Climate activists refuse to see this. Source: Labyrinth Consulting Services, Inc.

Figure 2. Modern civilization will collapse without fossil fuels. Climate activists refuse to see this.
Source: Labyrinth Consulting Services, Inc.

That’s the deeper failure. Not that the warnings weren’t loud enough. Not that the science wasn’t clear. But the framing itself was naïve and simplistic. We tried to solve climate in a way that let us avoid the real questions—about limits, about how we live, about what kind of future we’re actually powering toward.

This wasn’t just a climate mistake. It’s the same pattern we’ve seen with GDP as a proxy for wellbeing, with technological fixes for social breakdown, with laws against addiction instead of understanding its roots. We break the world into parts, fix the ones we can see, and call the system stable—until it breaks again.

The Sorcerer’s Apprentice comes to mind: a young helper stumbles onto power he doesn’t fully grasp. He sets the spell in motion—automation, acceleration—but lacks the wisdom to stop it. Every fix multiplies the problem. The castle floods.

Figure 3. The Sorcerer’s Apprentice. Power Without Wisdom. Source: Labyrinth Consulting Services, Inc.

We are that apprentice. We harnessed fossil energy, unleashed exponential growth, and built systems too complex to control. Then, faced with side effects—climate change, ecological overshoot, cascading risk—we reached for familiar tools: substitution, regulation, markets. Anything but reflection.

Climate change didn’t fail because we lacked solutions. It failed because we mistook the problem. We made it about emissions when it was always about our relationship with energy, with growth, with the natural world. We wanted to fix the atmosphere and leave the civilization intact. But that’s not how systems work.

The truth is harder. We don’t need new energy sources. We need a new relationship with energy that includes respect for Nature and our place in it, humility and restraint. One that recognizes that some thresholds, once crossed, don’t rewind. And some systems, once overbuilt, don’t transition—they unravel.

That doesn’t mean despair. It means clarity. It means seeing not just where we are, but how we got here—and learning, at last, to think about the whole rather than the parts

123. The Evolution of Modernity

by Richard Heinberg

Download printable PDF version

  • The human world of the early 21st century is dominated by science, cities, and high technology. However, both our modern way of life and our way of thinking about the world sprang up only within the past several centuries. Today’s humans are biologically the same as people who lived 10,000 years ago; but our current habits, expectations, and beliefs are almost entirely tied to machines, infrastructure, energy sources, and artificial materials that have only recently come into existence. Compared to our hunter-gatherer forebears, we might as well be from another planet.

We take modernity for granted, as the fish presumably takes for granted the water in which it swims. But our own metaphorical water is increasingly troubled. Survival-level problems are appearing with more frequency and intensity, including climate change, resource depletion, the disappearance of wild nature, and the toxification of the biosphere. If society cannot extricate itself from this worsening turbulence, our species may not persist much longer.

What’s outside the fishbowl we call modernity? And how did we humans get into it in the first place?

Progress or Polycrisis

Most people who live in industrialized nations now believe that humans are superior to the rest of nature. It is assumed that by using science and reason, along with giant helpings of technology, we can banish scarcity and ignorance. Modernity is thought to be the implicit goal of billions of years of biological evolution. And some of us imagine techno-humans to be the seed pods resulting from this great flowering, capable of spreading life and intelligence into the rest of the universe.

There have long been critics of modernity such as Chief Seattle (“When the green hills are covered with talking wires and the wolves no longer sing, what good will the money you paid for our land be then.”). However, in the last few years a critical discourse about modernity has emerged in books, blogs, and academic literature, notably in the works of three authors—Vanessa Andreotti, Tom Murphy, and Dougald Hine (more names deserve mention, including Robin Wall Kimmerer, Daniel Quinn, Anna Lowenhaupt Tsing, Jeremy Lent, and Joanna Macy, but the aforementioned three will serve our immediate purposes).

Vanessa Andreotti, in her book Hospicing Modernity: Facing Humanity’s Wrongs and the Implications for Social Activism, focuses on the modern mindset, which she characterizes as a collection of “expired stories” from which spring racism, colonialism, and wanton destruction of nature. She contrasts this modern mindset with Indigenous ways of knowing, which not only made societies more sustainable, but gave their members a sense of organic connection with their surroundings and with one another.

Tom Murphy, author of the blog “Do the Math,” sometimes describes himself as a recovering astrophysicist. In essays dating back to 2011, he shows that techno-solutions to climate change and other survival-level predicaments aren’t working and can’t work at scale. Murphy has concluded that only a fundamental shift in how humans inhabit the planet can enable our species to continue. While his starting point differs from Andreotti’s, he has come to share the latter’s outlook on modern versus Indigenous human cultures. Note: Murphy recently shared the story of his intellectual journey on the Crazy Town podcast.

Dougald Hine is the author of At Work in the Ruins: Finding Our Place in the Time of Science, Climate Change, Pandemics, and All the Other Emergencies. In it, he explains why he has stopped focusing on climate change in his environmental writing. Although global warming is a survival-level problem, it cannot meaningfully be addressed without engaging in a deep critique of modernity. Like Andreotti and Murphy, Hine calls upon us to reawaken Indigenous attitudes toward nature.

For these authors, modernity is the cause of the current polycrisis and the impending Great Unraveling. Modernity is likely to comprise a brief and intensely destructive moment in Earth history, because the way we live is unsustainable not just in its details, but in its inherent design. Despite our pretentions and aspirations to be free of natural limits, we humans remain, and always will be, part of nature and subject to it. We pollute and deplete it at our own peril.

Are Humans Great or Terrible?

Implicit in this bifurcation of ways of looking at modernity are two views of Homo sapiens. If modernity is a magnificent achievement, it’s assumed that this is because humans are inherently great and are expressing that greatness through technology. In this view, we humans are more than just clever animals; we are evolving to become gods—as some writers have explicitly claimed.

The critics of modernity describe the current phase of human history not as an expression of intelligence and virtue, but as a cataclysmic mistake: for the sake of momentary comforts, conveniences, and profits, we are generating existential problems that could imperil not just civilization, but planetary life-support systems. One might well conclude from this that humans are terrible.

However, that pessimistic assessment of the worth of our species may be a misreading of both the situation and of the modernity critics. If we consider humans to be animals embedded in ecosystems, then whatever we do is part of nature and evolution. Biological evolution gave us big brains and opposable thumbs. Then cultural evolution via language and toolmaking took over, initiating a rapid self-reinforcing feedback process that has accelerated until the present. Modernity is the first instance in evolutionary history where a species has developed tools and language to expand its range and potential resources, thereby depleting not just its immediate region but global stores of fish, game, trees, soil, and minerals, while overfilling global waste sinks, notably the planetary atmosphere. However, the essential pattern of a species overexploiting its environment, increasing its population until it exhausts available resources and waste sinks, and then dying off, is common in nature. Humans are products of evolution, and whatever qualities drove us to provoke climate change and all the other predicaments of modernity are inherent in evolution itself.

Money, technology, social complexity, and war—human cultural traits that seem to separate us from other creatures—emerged via evolution. Natural selection is a process of improvising and testing; it doesn’t have a goal in mind. Once nature’s improvisation turned in the direction of language and toolmaking, modernity may have become inevitable. While all human groups didn’t follow the path that led eventually to the extreme exploitation that characterizes modern industrial civilization, the existence of even one group with the environmental preconditions, cultural history, and audacity to pursue the path of technological hyper-innovation and empire building made modernity virtually unavoidable. Most other groups were then swept along, first via colonization and later through economic globalization.

While techno-utopians envision humanity taking charge of Earth and then moving on to the stars, critics of modernity, when contemplating the future of our species, are more likely to look for clues in nature. When a species finds a new food source and multiplies, it eventually reaches limits of that food source; its population overshoots a sustainable level and crashes. This overshoot/die-off population cycle is particularly common among invasive species, which often negatively impact native species. However, once invasive species have been around for long enough, they and surrounding native species typically co-adapt—sometimes to the long-term detriment of at least some of the natives, sometimes to that of the invader. If the invaders are predatory, they eventually learn to take only some of their potential prey. If the invaders are prey species, they learn new survival strategies, perhaps including camouflage.

Similar boom-and-bust cycles have happened in human societies. Many societies experienced Golden Ages when resources seemed abundant and when comfort, convenience, and knowledge increased for a significant portion of the population. These Golden Ages were typically followed by Dark Ages of resource scarcity, poverty, and loss of high culture. All that’s different today is that we’ve achieved a global Golden Age based on the use of fossil fuels (which enable us to extract resources in larger quantities and move them longer distances); as fossil fuels dwindle and the consequences of burning them degrade ecosystems, a global Dark Age will likely follow. But its degree of darkness will depend on how willingly and successfully humanity adapts to limits.

Perhaps it’s helpful to think of the historical process of human cultural adaptation to environmental limits in slightly different terms. In the distant past, when a particular human group reached a limits crisis (usually with food), it had two options: indigenize or colonize. To indigenize meant adapting the group’s population size and consumption behavior to levels that could be sustained given existing resources. To colonize meant moving elsewhere, taking over other groups’ resources, or inventing ways to access resources that previously were inaccessible. No doubt circumstances and group history (and therefore mindset) predisposed each group toward one or the other strategy. Modernity marks the historical moment when the colonizers have taken over the whole world. But, having done so, they find themselves in a bind: there’s nowhere else to colonize, the resources held by Indigenous peoples have mostly already been looted, and unexploited new resources (perhaps including thorium or geologic hydrogen) are few and of questionable utility or accessibility. The only real long-term solution is for the colonizers to indigenize.

Evolution, Big Mistakes, and Human Agency

Critics of modernity are not the first people to question our evolutionary urge to colonize. For millennia, Indigenous thinkers, as well as some philosophers from the world’s dominant civilizations, have offered guidance on how to adapt to limits—psychologically as well as practically. In most if not all cases, the impulse to temper our human urge toward greed and outward expansion arose due to a humbling previous descent into scarcity that came from overharvesting resources.

During the last 60,000 years, humans fanned out across the globe, encountering ecosystems new to them. In each unfamiliar place they encountered, they tended to kill large animals that provided a high return on hunting effort. Many of these animals—including mammoths, mastodons, ground sloths, and three species of camels—were driven to extinction, and people had to resort to harvesting smaller game whose hunting required more work. Gradually, people who stayed in one place for many generations learned to leave enough plants and animals unharvested so that these species could reproduce and flourish.

Anthropologists Colding and Folke, in their studies of Indigenous peoples, found six kinds of tribal taboos regulating the harvest of vulnerable species. These are “segment taboos,” which forbade individuals of a certain age, sex, or social class from harvesting a resource; “temporal taboos,” which banned the use of a subsistence resource during certain days, weeks, or seasons; “method taboos,” which restricted overly efficient harvesting techniques that might deplete the stock of a resource; “life-history taboos,” that forbade the harvesting of a species spawning or nesting; “specific-species taboos,” which protected a species at all times; and “habitat taboos,” which forbade human exploitation of species within particular reefs or forests that served as biological reserves or sanctuaries.

Indigenous people weren’t automatically eco-wise simply because they were pre-modern. They inhabited worlds that had already been over-exploited, resulting in conflict and privation. The lessons of moderation were hard-won and eventually resulted in locally rooted cultures that assumed responsibility for the maintenance of nature’s balance, that made modest demands on ecosystems, and that recycled everything. Some indigenous societies, such as the Aboriginal peoples of modern-day Australia, developed practical, tested knowledge for living in balance with the more-than-human world that persisted for tens of thousands of years.

Some later colonizers likewise achieved ecological wisdom after having devastated their environments. By roughly 500 BC, ancient Greece was deforested and its topsoil was largely depleted. This was the context in which Greek stoic and cynic philosophers arose, advising a simple, peaceful, and virtuous life in harmony with nature (Epicurus: “Poverty, brought into conformity with the law of Nature, is great wealth.”).

Among the world religions, Buddhism has perhaps the most ecological message: other organisms, like us humans, are on the path to enlightenment, so don’t harm them if you can avoid doing so. Practice self-restraint and curb your appetites. Many environmentalists are attracted to Buddhism (which, despite its non-violent rhetoric, was spread throughout southern Asia via holy wars). Again, the context in which this religion of moderation emerged was ecological devastation. Anthropologist Marvin Harris offers this summary:

“By 600 BC, . . .  the population had risen into the millions, towns and cities had sprung up, the entire Gangetic plain had become deforested, there was a shortage of pasture and fodder . . . and warfare was incessant.”

Today, as environmental devastation descends upon us all, ecological wisdom is again germinating—this time among climate change activists, students of ecology, and, unsurprisingly, people learning from Indigenous ways. Perhaps today’s critics of modernity are evolution’s growing tip, exploring a way toward the recovery of humanity and the biosphere.

We modern people prize boiled-down bromides we can easily recall, and we like to think we’re in charge of our fate. An honest critique of modernity discourages both mental tendencies. Details matter, the world is rife with nuance, and our agency is limited. However, if there is one simple bit of advice we might do well to remember, it’s this: stay humble. Much of what we think we know is wrong, and the rules of the game of survival are changing. The colonizing rules, which seemed to work so well for a while, at least for some, have propelled us into the evolutionary cul-de-sac called modernity. Going just a little further toward that dead end, via still more economic growth and technological innovation, will provide no solution. A response that reaches back to our very self-identity as humans is required.

122. World Without End: An Illustrated Guide to the Climate Crisis by Jean-Marc Jancovici

This graphic novel presents a comprehensive exploration of the energy and climate challenges facing our world today. Through a dialogue between Jancovici and Blain, the book delves into topics such as:

  • Our Dependence on Fossil Fuels: Examining how modern economies are built on cheap, abundant energy and the implications of dwindling fossil fuel resources.
  • Limitations of Renewable Energy: Discussing the challenges associated with scaling up renewable energy sources to meet global demand.
  • Advocacy for Nuclear Power: Presenting nuclear energy as a viable solution to reduce carbon emissions and maintain energy supply .
  • The Inevitability of Economic Contraction: Arguing that due to physical and environmental constraints, a contraction of the economy is unavoidable, regardless of governmental actions.
  • The Need for Societal Restructuring: Emphasizing the importance of rethinking our energy consumption, economies, and societal structures to adapt to these changes.

The book combines scientific insights with engaging illustrations, making complex concepts accessible to a broad audience. It has been praised for its clarity and depth, with The Guardian highlighting its effectiveness in conveying the interconnectedness of energy consumption and climate change .

Jean-Marc Jancovici is a French energy and climate expert known for his clear, data-driven arguments about the limits of growth and the central role of energy—especially fossil fuels—in shaping modern civilization. His views are grounded in thermodynamics and systems thinking.

Here’s a summary of his main ideas about the future:


1. Energy is the Foundation of Modern Economies

  • Economic growth has historically been powered by cheap, abundant fossil fuels.
  • GDP is closely tied to energy consumption; without energy, machines stop and productivity collapses.

2. Peak Oil and Declining Fossil Resources

  • The world is nearing, or past, peak oil. Declining fossil fuel availability will reduce the energy available to societies.
  • Renewables cannot fully replace fossil fuels due to their lower energy return on investment (EROI), intermittency, and material constraints.

3. Climate Change is a Non-Negotiable Constraint

  • Continuing fossil fuel use leads to climate catastrophe.
  • A sharp reduction in greenhouse gas emissions is unavoidable, but it implies a contraction of economic activity unless we rapidly restructure society.

4. Degrowth is Inevitable

  • Jancovici doesn’t advocate voluntary degrowth as an ideal, but sees it as a necessary adaptation to physical limits.
  • He argues that we will have less material wealth, fewer long-distance travels, and simpler lifestyles, whether we like it or not.

5. Technology Will Not Save Us Alone

  • While useful, technology cannot overcome energy and ecological limits. Efficiency gains often lead to rebound effects (Jevons Paradox).
  • Belief in technological salvation is, in his view, a form of denial.

6. We Must Plan for Contraction, Not Growth

  • Public policy should shift toward planned degrowth, focusing on resilience, equity, and preserving essential services.
  • Infrastructure, urban design, food production, and employment must be redesigned around low-energy principles.

7. Nuclear Energy is a Partial Solution

  • Jancovici is a strong proponent of nuclear energy. He believes it offers a realistic path to maintaining some industrial capacity while cutting emissions.
  • However, even with nuclear, we must reduce energy demand.

Tone and Outlook:
Jancovici is pragmatic and sometimes stark. He speaks of a “controlled landing” rather than a crash. He wants societies to face the truth: we can’t grow forever on a finite planet, and it’s better to anticipate limits than to be crushed by them.