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Failing to address climate change is a failure for our planet and for humanity. Why pay trillions in disaster relief, conflict mitigation, aid, and migration management when the solutions are at our feet today?
Climate change is now the single biggest health threat facing humanity. The Emergency Events Database reports a record rise in natural disasters globally since the 1960s, detailing over 26,000 mass disasters. The number of reported extreme weather incidents increased from 39 in 1960 to 399 in 2023.
According to the World Economic Forum, climate-related weather disasters will cost the global economy over $2 trillion annually by 2030, with costs escalating dramatically to an estimated $38 trillion per year by 2050, according to the Potsdam Institute for Climate Impact Research (PIK).
Since the Industrial Revolution, global economies have been built around the fossil fuel industry. In 2025, the global oil and gas industry's revenue was estimated at $4 trillion. Despite all the devastating warnings, we are still failing to meet almost every target aimed at curbing emissions.
The burning of fossil fuels comes at a massive price for people, the planet, and our economies. Not only are we spending exorbitant amounts on climate damage, but we are also paying more than ever at the pump and on our energy bills.
Policymakers and world leaders need to start thinking longer term and take steps to prevent the huge economic losses from climate disasters in the first place.
As the US-Israeli war on Iran rages, prices are set to rise further. Targeted attacks on energy facilities have all but closed the Strait of Hormuz, a shipping lane which facilitates the transportation of 20% of global oil and gas supply. The price of crude oil is already 20% higher than it was before the first strikes on Iran on February 28.
Despite the known fact that adaptation is far cheaper than inaction, politicians continue to sit on their hands. Meanwhile, they continue to subsidize the fossil fuel industry, fail to adequately invest in the energy transition, and pass the costs of climate change on to taxpayers.
In the last two full years alone, global economic damages reached $451 billion—a 19% increase compared to the previous eight years. An amount significantly more than that needed to close the global climate adaptation gap.
"Climate change will cause massive economic damages within the next 25 years in almost all countries... We have to cut down our emissions drastically and immediately—if not, economic losses will become even bigger in the second half of the century, amounting to up to 60% on global average by 2100," says Leonie Wenz, a scientist at PIK.

Climate change is not a future problem; it is affecting each and every one of us today.
According to the National Bureau of Economic Research, climate change costs the world 12% in gross domestic product (GDP) losses for every 1°C of warming. This puts the social cost of carbon at around $1,056 per metric ton of carbon dioxide emissions. The report predicts that by the "end of the century, people may well be 50% poorer than they would've been if it wasn't for climate change."
Heatwaves, wildfires, droughts, and storms cost the world more than $120 billion in 2025 alone as 55 billion-dollar weather disasters pounded the Earth. The US bore the brunt with the devastating Californian wildfires, which caused $60 billion of damage and led to the deaths of more than 400 people.
No continent, however, was spared from crippling climate disasters in 2025. It was also noted that disasters are becoming increasingly expensive and their impact underestimated. The Global Assessment Report on Disaster Risk Reduction (GAR) 2025 estimates the annual cost of weather disasters at $202 billion. When other impacts, such as ecosystem costs, are taken into account, the true cost is likely to exceed $2.3 trillion.
Some of the most damaging climate events in 2025 hit poorer nations, including the Philippines, Thailand, Indonesia, Sri Lanka, and Vietnam. These countries have historically contributed little to the climate crisis, have the fewest resources to respond, and are often on the front lines of climate disasters.

"On climate finance, the world must pay up, or humanity will pay the price... Climate finance is not charity, it's an investment; climate action is not optional, it's imperative."—António Guterres, United Nations secretary-general.
In relation to the climate crisis, the Polluter Pays Principle states that those who have historically contributed the most to greenhouse gas emissions should bear the costs of repairing the damages caused and adaptation measures. It also acts as a deterrent to end massive investment and subsidies into the fossil fuel industry and instead promotes the development and integration of clean energy sources.
The Loss and Damage fund was created at COP27, the 2022 climate conference. This fund is to compensate developing countries for losses and damages (L&Ds) from natural disasters caused by climate change, for which wealthy countries are disproportionately responsible. It was hailed as a major milestone at the time, but financial commitments have fallen well short of the $400 billion needed annually to address L&Ds and climate injustices adequately.
Over the past four decades, the costs of wildfires, storms, hurricanes, droughts, and floods have spiraled. These disasters have become more frequent and far more severe. The cost of all disasters between 1985 and 1995 was $299 billion. Yet the same figure for between 2014 and 2025 was $1.4 trillion.
Below, we list the five most costly disasters over the last three decades. The figures provided are estimates, and likely the true cost was much higher. They are adjusted for inflation and, of course, do not include the social costs, such as the devastating human toll, the health crises that follow, the psychological impact, massive displacement, ecosystem destruction, resource depletion, habitat loss, and agricultural fallout.

Climate adaptation is the process of adjusting to the impacts of climate change to reduce damage, prevent loss of life, and protect people and infrastructure before disaster strikes. It also includes reducing global carbon emissions by transitioning to clean energy to prevent climate change from worsening even further.
Adaptation requires upfront investment, but it is far more cost-effective than inaction, which allows the climate crisis to escalate, causing irreversible damage and out-of-control social and environmental costs.
Examples of adaptation measures include flood defences, the creation of urban wetlands, drought-resistant crops and climate resilient agriculture, ecosystem restoration and conservation, and investment in early warning systems.
There is a huge funding gap in climate adaptation, and the longer governments postpone, the greater the need and the higher the costs become. Annual estimates for developing countries alone range from $215 to $387 billion.
Once we reach 2°C of warming, the global annual cost to protect everyone exposed to climate hazards will reach $1.2 trillion, equivalent to almost 1% of GDP. Heat and drought are the most pressing challenges, with more than three-quarters of adaptation funding needed to provide adequate protection.
Estimates indicate that the benefits of adaptation exceed the upfront costs by a factor of seven. Policymakers and world leaders need to start thinking longer term and take steps to prevent the huge economic losses from climate disasters in the first place.
Adaptation investments also have wider secondary benefits such as improved health and social welfare, a more resilient agricultural sector, stable levels of biodiversity, lower levels of migration and conflict, and reduced inequalities.
The 2019 Global Commission on Adaptation Report found that every $1 invested in adaptation can generate up to $7.1 trillion in total benefits globally by avoiding damages and building social and environmental value.

Climate inaction is already leading to massive economic losses from extreme weather. The International Federation of Red Cross and Red Crescent Societies' 2019 Cost of Doing Nothing report estimates that those in need of annual international humanitarian assistance for climate-related disasters could double to over 200 million by 2050, costing an additional $20 billion annually.
The Climate Policy Initiative estimates the financial cost of inaction to be $1,266 trillion. The social cost is much higher:
The two-year Global Stocktake for the Paris Agreement at COP28 confirmed that we are way off track from the targeted 1.5°C target. The window for achieving the Sustainable Development Goals and specific climate goals is rapidly closing.
If governments won't act on climate change for people or the planet, they should at least be motivated by the trillions it will cost them if they continue to do nothing.
Failing to address climate change is a failure for our planet and for humanity. Why pay trillions in disaster relief, conflict mitigation, aid, and migration management when the solutions are at our feet today?
As the Climate Policy Initiative says, "The longer our home remains aflame, the harder and more expensive it will be to extinguish the fire and repair the damage."
"Existing climate mitigation approaches, including scaling up renewable energy and protecting carbon-storing ecosystems, are critical to limit the increase in global temperatures," said the lead author.
In the lead-up to the Trump administration effectively destroying the US Environmental Protection Agency's ability to combat the fossil fuel-driven climate emergency, an international team of scientists warned Wednesday that "Earth's climate is now departing from the stable conditions that supported human civilization for millennia."
Various institutions, including in the United States, have confirmed that 2025 was among the hottest years on record, and January continued that trend. Meanwhile, governments and polluting industries have repeatedly refused to impose policies that adequately heed experts' calls for action.
"In an effort to mitigate dangerous levels of warming, the Paris Agreement formalized the aim of limiting warming to 1.5°C above preindustrial levels, yet global temperatures have recently breached this limit for 12 consecutive months, coinciding with record-breaking heat, wildfires, floods, and other extremes," the scientists noted Wednesday in the journal One Earth.
They wrote that "crossing critical temperature thresholds may trigger self-reinforcing feedbacks and tipping dynamics that amplify warming and destabilize distant Earth system components. Uncertain tipping thresholds make precaution essential, as crossing them could commit the planet to a hothouse trajectory with long-lasting and potentially irreversible consequences."
A "hothouse trajectory," they wrote, is "a pathway in which self-reinforcing feedbacks push the climate system past a point of no return, committing the planet to substantially higher long-term temperatures, even if emissions are later reduced."
"Sixteen major tipping elements have been identified, 10 of which could add to global temperature if triggered," the experts detailed. "Tipping may already be underway or could occur soon for the Greenland and West Antarctic ice sheets, boreal permafrost, mountain glaciers, and parts of the Amazon rainforest."
As an example, they pointed to ice melt in the Arctic, explaining that the resulting water "could perturb the Atlantic Meridional Overturning Circulation (AMOC), which is already showing signs of weakening. A weakened AMOC could alter global atmospheric circulation, shifting tropical rain belts and drying parts of the Amazon. This cascade of events could trigger large-scale Amazon forest dieback, with major consequences for the region's carbon storage and biodiversity."
Concerned about the Point of No Return? Today we published a paper on the risk of a hothouse Earth trajectory. You can read it here: authors.elsevier.com/c/1mbW49C~Iu...
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— Prof William Ripple (@williamripple.bsky.social) February 11, 2026 at 2:43 PM
The team of eight was led by William Ripple, who has previously emphasized alongside other experts that "we are on the brink of an irreversible climate disaster" and "fossil fuels—and the fossil fuel industry and its enablers—are driving a multitude of interlinked crises that jeopardize the breadth and stability of life on Earth."
Ripple, distinguished professor of ecology at Oregon State University (OSU), said in a Wednesday statement that "after a million years of oscillating between ice ages separated by warmer periods, the Earth's climate stabilized more than 11,000 years ago, enabling agriculture and complex societies."
"We're now moving away from that stability and could be entering a period of unprecedented climate change," he stressed. "Existing climate mitigation approaches, including scaling up renewable energy and protecting carbon-storing ecosystems, are critical to limit the increase in global temperatures."
Study co-author Christopher Wolf, a former OSU postdoctoral researcher who is now a scientist with Terrestrial Ecosystems Research Associates (TERA), noted that already, "climate model simulations suggest the recent 12-month breach indicates the long-term average temperature increase is at or near 1.5°C."
"It's likely that global temperatures are as warm as, or warmer than, at any point in the last 125,000 years and that climate change is advancing faster than many scientists predicted," he said.
"Policymakers and the public remain largely unaware of the risks posed by what would effectively be a point-of-no-return transition," Wolf added. "And while averting the hothouse trajectory won't be easy, it's much more achievable than trying to backtrack once we're on it."
🆕 Several Earth system components may be closer to destabilisation than previously thought. Crossing key temperature thresholds could trigger feedback loops, pushing the planet toward a “Hothouse Earth” trajectory. Study by @oregonstate.edu, @iiasa.ac.at & PIK: www.sciencedirect.com/science/arti...
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— PIK_climate (@pik-potsdam.bsky.social) February 11, 2026 at 11:52 AM
The team's warnings came in the wake of Big Oil-backed President Donald Trump claiming in a United Nations speech last year that climate change is "the greatest con job ever perpetrated on the world," and ditching dozens of relevant organizations and treaties, including the Paris Agreement.
On Thursday, the Trump administration continued its war on the climate, revoking the "endangerment finding" that allowed the EPA to pass regulations fighting the global emergency—which was forcefully condemned by scientists and activists.
"In case there was any remaining doubt, the truth is very clear: Trump cares nothing for the health and well-being of our communities or our climate," said Erin Doran, senior staff attorney at the advocacy group Food & Water Watch. "He is concerned only with making more money for the billionaire fossil fuel polluters that help to fund his dangerous political agenda."
"The notion that the EPA shouldn't regulate climate emissions is inconsistent with the law, the science, and the realities of the climate crisis," Doran added. "EPA is charged with protecting human health and the environment, yet this rule does neither, benefiting only the fossil fuel industry at our expense. It's absurd, and we'll be fighting back."
Current models "assume the future will behave like the past, even as we push the climate system into uncharted territory," said the lead author of a new report that's based on input from dozens of experts.
In a report published Thursday, UK experts highlighted the "growing gap between real-world climate risk and the economic analysis used to guide policy, supervision, and investment," while also warning that because the "window for preventing catastrophic warming" is narrowing, ambitious action "cannot await perfected models."
Various scientific institutions concur that 2025 was among the hottest years on record—and the ongoing failure of governments across the globe, particularly the Trump administration, to enact policies that would significantly cut planet-heating emissions from fossil fuels is pushing the Paris Agreement's 1.5°C and 2°C goals for this century further out of reach.
The new report from the University of Exeter and the think tank Carbon Tracker Initiative, titled Recalibrating Climate Risk, incorporates the expert opinions of 68 climate scientists from Australia, Austria, Canada, China, France, Germany, the Netherlands, Norway, Spain, Sweden, the United Kingdom, and the United States.
"Our expert elicitation reveals a fundamental disconnect: Climate scientists understand that beyond 2°C, we're not dealing with manageable economic adjustments," said Jesse Abrams, lead author and senior impact fellow at Exeter's Green Futures Solutions, in a statement.
"The climate scientists we surveyed were unambiguous," he explained. "Current economic models systematically underestimate climate damages because they can't capture what matters most—the cascading failures, threshold effects, and compounding shocks that define climate risk in a warmer world and could undermine the very foundations of economic growth."
Abrams said that "for financial institutions and policymakers relying on these models, this isn't a technical problem—it's a fundamental misreading of the risks we face, which current models miss entirely because they assume the future will behave like the past, even as we push the climate system into uncharted territory."
Current economic models miss the mark on climate risks, warning that catastrophic tipping points and extreme weather could crash the global economy, far worse than 2008.As said many times before delaying action will be far costlier than cutting emissions now.www.theguardian.com/environment/...
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— Ian Hall (@ianhall.bsky.social) February 5, 2026 at 12:46 AM
Communities around the world are already contending with devastating droughts, fires, and storms—and, as another report from researchers at Exeter and the UK's Institute and Faculty of Actuaries (IFOA) pointed out last month, "above 1.5°C, we enter the danger zone where multiple climate tipping points may be triggered, such as the collapse of ice sheets in Greenland and Antarctica, permafrost melt, Amazon dieback, and changes in ocean circulation."
The IFOA report "warned that when cascading and systemic risks are taken into account, warming of 2°C by 2050 could result in a 25% hit to projected GDP, rising to a halving of projected economic growth between 2070 and 2090," BusinessGreen editor-in-chief James Murray reported Thursday. "Similarly, a report from consultancy Boston Consulting Group calculated a third of the global economic output could be lost under a scenario where temperatures reach 3°C above preindustrial levels by 2100."
"The studies stand in stark contrast to some mainstream economic models that have suggested warming of 2°C or more will only reduce projected economic growth by a few percentage points—analyses that have been seized upon by opponents of climate action to argue that decarbonization policies can be dropped or delayed," Murray noted.
Abrams told the Guardian that some current economic models "are saying we'll have a 10% GDP loss at between 3°C and 4°C, but the physical climate scientists are saying the economy and society will cease to function as we know it. That's a big mismatch."
Your periodic reminder that the economic models that suggest climate change will knock a couple of percent of future GDP - models that are used widely by governments, investors, and businesses - are almost certainly complete garbage. www.businessgreen.com/news/4525211...
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— James Murray (@james-bg.bsky.social) February 5, 2026 at 7:08 AM
Laurie Laybourn, a Carbon Tracker board member and executive director of Strategic Climate Risks Initiative, cited another recent report that provides a bleak picture of the current moment and what lies ahead.
"As the UK government's landmark security assessment of ecosystem collapse showed last week, we are currently living through a paradigm shift in the speed, scale, and severity of risks driven by the climate-nature crisis," he said. "Yet, beyond this report, there has not been a corresponding paradigm shift in how regulators and government as a whole assess these risks."
"Instead, they're routinely underestimated if not missed entirely, meaning many regulations and government action are dangerously out of touch with reality," he continued. "This threatens disaster when that reality catches up with us. So, it's critical that policymakers change course, providing clear signals and guidance to markets that these risks should be priced accordingly, rather than downplayed."
And, as the experts emphasized Thursday, it's not just policymakers—investors are also still relying on "flawed economic advice," said Carbon Tracker founder and CEO Mark Campanale. The result is "widespread complacency... with many investors viewing climate scenario analysis as a tick-box disclosure exercise."
"Until the gap between scientists and economists' expectations of future climate damages is closed and government bodies act to ensure the integrity of advice upon which investment decisions are made," he added, "financial institutions will continue to chronically underprice climate risks—meaning that pension funds and taxpayers will remain dangerously exposed."
Hetal Patel, head of sustainable investment research at Phoenix Group, the UK's largest and retirement and savings business, said that her firm "supports the report's call for a more robust and coordinated approach to climate‑risk modeling. Underestimating physical risk doesn't just distort financial analysis and investment decisions, it underplays the real‑world consequences that will ultimately affect customer outcomes and society as a whole."
The new report stresses that addressing the "fundamental disconnect between what climate scientists understand about climate impacts and how these impacts are represented in economic models" would require "research investments spanning years," but rather than simply waiting for better modeling, decision-makers "must proceed on the basis of precautionary risk management, physical climate science, and observed impacts."