Extreme Weather and Climate Change Dashboard (Pielke Jr.)

Roger Pielke Jr. has created a monitor at his THB (The Honest Broker) blog applying scientific and statistical rigor to detection of US Extreme Weather and Climate Change.  All the details and methodology are provided in his blog post US Extreme Weather and Climate Change Dashboard.

Overview

The THB US Extreme Weather and Climate Change Dashboard follows the Intergovernmental Panel on Climate Change’s (IPCC) framework for detecting a change in climate in the context of internal variability. This dashboard tracks 32 variables associated with 7 types of extremes: heat waves, tornadoes, flooding, drought, winter storms, wildfire, and hurricanes. The site presents data for the full range of data judged to be of sufficient quality for trend analysis, and on each page for each phenomena, users can choose the time frame over which to observe the data. This is ongoing work in progress – Suggestions welcome!

Detecting a change in climate is not the same as spotting a trend in a time series — it’s demonstrating that a trend is unlikely to have arisen from natural internal variability by chance alone. Here that means two things:

♦  First, detecting a trend at IPCC’s stated example threshold of below 10% (via the nonparametric Mann-Kendall test).

♦  Second, because a long, low-noise record can show a statistically significant trend as a result of internal variability, this dashboard adds another check before identifying a detected change: the trend’s magnitude must also be a meaningful share (this site’s threshold: at least 25%) of the variable’s historical variability. A trend can be identified in a time series and still not count as a detected change here for that reason: flooding’s trend, for example, is statistically real (p=0.011) but is only about 4% of its typical week-to-week range, and not at all unexpected.

This combined standard — IPCC’s likelihood criterion plus this site’s
magnitude check on trends — is what “detected change” means.

Each tile above shows a variable’s reliable-trend-window data at a glance and its detected-change verdict — click through to that variable’s phenomenon page for the full interactive chart, an adjustable time window, PNG/CSV downloads, and alternative metrics. Full definitions and caveats are documented on the Methodology page. A side-by-side comparison of how IPCC AR6 has characterized each hazard, and how it compares to this site’s findings, can be found on the Detection & Attribution page.

Detection and Attribution

This dashboard focuses only on detection, following the IPCC’s own framework for detecting a change in climate. The IPCC’s definitions are below (Glossary, AR5/AR6/SR15, “Detection and Attribution”), and are applied throughout this site.

  • Climate: “The average weather, or more rigorously, the statistical description in terms of the mean and variability of relevant quantities over a period of time ranging from months to thousands or millions of years.”
  • Climate change: “A change in the state of the climate that can be identified (e.g., by using statistical tests) by changes in the mean and/or the variability of its properties, and that persists for an extended period, typically decades or longer.”
  • Detection: “The process of demonstrating that climate or a system affected by climate has changed in some defined statistical sense, without providing a reason for that change. An identified change is detected in observations if its likelihood of occurrence by chance due to internal variability alone is determined to be small, for example, <10%.”
  • Attribution: “The process of evaluating the relative contributions of multiple causal factors to a change or event with a formal assessment of confidence.” This dashboard performs detection only — it does not attempt attribution, which requires separate causal/model-based analysis this project hasn’t undertaken.

Background Resources

Devious Climate Attribution Studies

X-Weather Attributions by Pseudo-Scientists

US Climate Law Dominoes 2026

Energy in Depth (EID) reports on climate litigation falling cases in the current year, leading up to a major SCOTUS hearing later this year.  Most recent article is Maryland’s Climate Lawsuits Quietly Hit a Dead End. Excerpts in italics with my bolds and added images.

In 2018, climate activists hailed Baltimore’s lawsuit against energy companies as “the next in a growing wave” of climate liability lawsuits. Eight years later, that wave has crashed in Maryland.

The ordinary 90-day window to ask the U.S. Supreme Court to review the Maryland Supreme Court’s March 24 decision has passed without fanfare, leaving the dismissals of Baltimore, Annapolis, and Anne Arundel County’s climate lawsuits intact.

For the climate litigation campaign, that silence is telling. These cases were once promoted as part of coordinated legal strategy to force energy companies to pay for global climate change through local courts. Instead, Maryland’s highest court delivered one of the campaign’s clearest defeats yet – rejecting the lawsuits from top to bottom.

A Major Problem for the National Campaign

Maryland’s final defeat comes at a critical moment. The U.S. Supreme Court has agreed to hear an appeal of the Colorado Supreme Court’s refusal to dismiss Boulder’s climate lawsuit. When granting review, the Court also asked the parties to brief whether it has jurisdiction to review the ruling at this stage in the litigation.

The Maryland Supreme Court’s now final decision answers that question.

In the Maryland Supreme Court’s ruling, the justices were explicit about why: they wanted to give SCOTUS:

“the benefit of a high court’s analysis that is different from that expressed by our colleagues on the high courts of Colorado and Hawaii.

This created a clear split between Maryland’s Supreme Court and state supreme courts in Colorado and Hawaii that ruled against the companies. Now, SCOTUS has clear jurisdiction to review the Colorado Supreme Court’s ruling and has an opportunity to put an end to the nationwide lawfare campaign against the U.S. energy industry.

Maryland Double Whammy: Dismissed on Federal Grounds – and State Grounds Too

Writing on behalf of the 6-1 majority, Justice Brynja M. Booth delivered a clean sweep against every theory the climate litigation campaign has thrown at the courts – ruling that these claims fail under federal law, and under state law too.

The court firmly dismissed plaintiffs’ attempts to reframe their sweeping federal claims as local matters, making clear that such claims fall squarely within the domain of federal law:

We are unpersuaded by the local governments’ myopic view of their claims or their attempt to ignore or minimize the effect that a significant damages award would have on both domestic and international attempts to regulate pollution—matters which are solely within the purview of federal law.” (Emphasis added)

The court was equally clear that local governments lack the basic jurisdictional authority to police global conduct:

“The local governments cannot escape this inescapable conclusion: they are seeking to apply Maryland law to regulate conduct that occurs outside their jurisdictional borders, as well as within the State’s borders. The local governments’ police powers do not extend beyond their respective borders, and certainly do not authorize the policing of global conduct.” (Emphasis added)

But the majority didn’t stop at federal preemption. It ruled that even if federal law didn’t preempt these claims entirely, the plaintiffs still had no case. Their nuisance, trespass, and failure-to-warn theories each failed independently under Maryland state law, leaving plaintiffs with no viable path forward in any court:

“Even if the local governments’ state law claims were not displaced or preempted by federal law, the local governments failed to state legally cognizable claims under state law for public nuisance, private nuisance, trespass, and negligent and strict liability failure to warn.”

The opinion also delivered a direct rebuke to the plaintiffs’ core liability theory: that the production and sale of oil and natural gas is a liability-inducing event:

“No single extraction decision, no single sale of fuel, and no single consumer transaction creates a foreseeable risk of harm to any identifiable person.”

That language echoes warnings from other courts. In South Carolina, a judge dismissed Charleston’s climate lawsuit by flagging the same problem: accepting plaintiffs’ theory would open the door to “boundless” liability.

Climate superfund bills–Retroactive Punishment with a Misnomer Name 

Climate superfund bills – which are designed and pushed by the same activists behind the litigation campaign against oil and gas companies – have been introduced in over ten states and signed into law in two, Vermont and New York. These state superfund laws are now facing steep legal challenges from industry groups, other state attorney generals, and the Trump administration.  

One of the sharpest concerns raised during the panel was the constitutional flaw at the core of these bills: retroactive liability. Climate superfund laws aim to penalize decades of past activity – activity that was lawful and, in many cases, encouraged by government policy. As GMU Professor Donald Kochan explained: 

“If every time you lose in court and can’t actually prove that someone is responsible… you just go to the legislature and say, ‘Hey, why don’t you deem them responsible without any proof’—that’s a really dangerous change and shift in our Democratic and Republican values.”

This approach raises due process concerns and opens the door to politicized, retroactive punishment across a range of industries, not just energy.  

Experts also pushed back on the “superfund” label, calling it a misleading analogy. The EPA’s original superfund program, also known as CERCLA, pooled funds for cleanup at specific contaminated sites. But, as Kochan pointed out, unlike hazardous waste, climate change is a global issue with no discrete damage sites or direct remediation:  

“There’s all kinds of reasons why these are not Superfunds. One is that there’s nothing remediated here… These labels were done for convenience sake, to make it sound like it wasn’t such a deviation from norms to do this kind of thing.”

Instead of remediation, the real purpose seems to be punitive: to create a system of endless liability that ultimately puts fossil fuel companies out of business.  

Consumer Costs and Chilling Investment 

Even if courts eventually strike these laws down, their economic effects will be felt immediately. C3 Solutions’ Ian Banks noted that companies are already reconsidering development plans in states that have proposed climate superfund laws, and that hesitation impacts consumers: 

“These companies are going to have to pay billions of dollars… It’s going to discourage them from continuing to take action in these states. And likely, these costs will get passed on to consumers.”

This dynamic is playing out in real-time in California. As EID Climate previously commented, California’s own climate superfund effort stalled earlier this year after lawmakers raised red flags about affordability and fairness. Still, California has seen a policy-driven exodus of energy companies and infrastructure, contributing to its high gas prices. This outcome suggests that even in deep-blue states, reality catches up to rhetoric when bills come due. 

The Role of Attribution Science 

One of the pillars supporting climate superfund legislation is a relatively new theory: source attribution science, which claims to link specific weather disasters to individual companies’ historical emissions. Kochan noted that this theory has yet to withstand courtroom scrutiny:  

“We’ve not yet gotten to the trial stage in any of these cases… because plaintiffs haven’t yet had to prove traceability, causation, and harm. But when we do, the scientific evidence standards should keep this science out.” 

Professor Weinkle, who holds a PhD in Environmental Studies and Public Policy, added that source attribution research is increasingly shaped by litigation and advocacy goals, instead of neutral science – a dynamic that undermines its credibility in policy contexts. 

The Writing Was on the Wall

Lawmakers in Maryland have long seen the signs that this climate litigation lacks legal merit. Recognizing this, they pivoted, joining New York and Vermont in pursuit of Rockefeller-funded “climate superfund” efforts that retroactively charge energy companies for the costs of climate adaptation projects.

Even those superfund efforts in Maryland have faced hurdles. Maryland’s own climate superfund bill was downgraded to a study amid bipartisan concern about the impact on energy affordability.  That pivot reveals the basic problem. If activists cannot get courts to impose sweeping climate liability through nuisance, trespass, and failure-to-warn claims, they will try to get legislatures to impose the same costs by another name.

But Maryland shows both paths face serious legal, fiscal, and affordability concerns.

Bottom Line: Despite activist promises, Maryland’s climate lawsuits have quietly joined the growing list of failed attempts to bankrupt the U.S. energy industry. The Maryland Supreme Court’s ruling also came at the perfect time, as the U.S. Supreme Court prepares to hear arguments in Boulder’s similar climate lawsuit.

ICJ Opinion and UN Resolution Turbocharge Climate Litigation

Activists hoping the opinion from the ICJ’s judges will have far-reaching legal consequences in the fight against climate change Image: Peter Dejong/AP Photo/picture alliance

The biased Advisory Opinion came down from ICJ a year ago. At the time I posted of how narrow-minded was the decision process.  For example, this from perplexity.ai:

Question: How did the ICJ address scientists disputing IPCC reports like Clintel in its climate advice?

Answer: The International Court of Justice (ICJ), in its advisory proceedings on climate change, did not address or give consideration to scientists or groups—such as Clintel—who dispute the findings of the IPCC. Instead, the ICJ relied heavily and explicitly on the IPCC as the authoritative source on climate science throughout the process.

Key points from the available evidence:

  • The ICJ held a private meeting with IPCC scientists just before hearings began, reflecting the Court’s view of the IPCC as the “scientific pillar” of the climate change regime1.

  • This meeting was not part of the formal, public hearings and did not include scientists who dissent from the IPCC—states and organizations participating in the advisory proceedings had no opportunity to question or respond to IPCC scientists1.

  • The process was criticized for lacking transparency and procedural fairness precisely because it favored a single scientific perspective (the IPCC’s), with no indication that alternative scientific viewpoints were admitted or reviewed1.

  • The UN General Assembly’s request for the advisory opinion itself referenced the “utmost concern [for] the scientific consensus expressed” in the IPCC reports, reinforcing the Court’s mandate to treat the IPCC’s findings as the foundation for its analysis13.

  • Available commentaries and summaries of the ICJ process do not mention any engagement with scientists or organizations disputing IPCC conclusions, nor do they report that groups like Clintel were referenced or invited as experts13.

  • While the ICJ has, in rare past cases, consulted technical experts informally, in this climate case it only announced consultation with IPCC figures, reinforcing the exclusion of dissident scientific voices19.

In summary, the ICJ’s approach gave exclusive scientific authority to the IPCC and provided no forum, reference, or weight to scientists disputing its reports, such as those from Clintel13. The Court did not discuss or acknowledge the existence of such scientific disagreement in its process, instead treating the IPCC’s consensus as fact. This approach has been criticized for its lack of transparency and its failure to incorporate procedural safeguards for alternative scientific views19.

Neverthless, the ICJ AO prompted headlines like these:

Top UN court says countries can sue each other over climate change, BBC

Legal experts say International Court of Justice ruling provides ‘a clear blueprint to hold major emitters accountable’ The Independent

Opened the door for countries to sue each other over impacts of climate change, phys.org

Nations Can Sue Each Other Over Climate Inaction Under International Law, Daily Guardian

Etc., Etc. Etc.

Now on May 20, 2026 the UN General Assembly passed a resolution affirming the ICJ and suggesting implementation.

UN General Assembly ADOPTS resolution welcoming the advisory opinion of the International Court of Justice on the obligations of States in respect of climate change

RESULT
In favor: 141
Against: 8
Abstain: 28

Activists gloss over the fact that neither the ICJ Opinion nor the UN Resolution are binding, even though it’s expected for them to be referenced in all the climate warfare going on now, and soon to explode.  Thus it is important to look into the vote and the implications from those who opposed, abstained, or were absent

The table below lists the Authors, those Against, Abstained, Absent and Notables Voting for:

Authors (62) Against (8) Abstained (28) Absent (15) For (79 + 62)
Andorra Belarus Algeria Azerbaijan Notables
Angola Iran Argentina Benin Australia
Antigua and Barbuda Israel Bahrain Bolivia Austria
Armenia Liberia Brunei Central African rep Belgium
Bahamas (The) Russia Czechia Dem Rep Korea Brazil
Bhutan Saudi Arabia Quatorial NG Dominica Canada
Bosnia and Herzegovina United States Eritrea Eswatini China
Bulgaria Yemen Ethiopia Kiribati Denmark
Burkina Faso Gambie Madagascar Egypt
Cabo Verde India Nicaragua Hungary 
Chile Iraq Serbia Indonesia
Colombia Kazakhstan Trinidad Tobago Ireland
Congo Kuwait Turkmenistan Italy
Costa Rica Lesotho Uzbekistan Japan
Croatia Libya Venezuela Malaysia
Cyprus Namibia Mexico
Czechia Nigeria New Zealand
Djibouti Oman Norway
Dominican Republic Pakistan Poland
Ecuador Paraguay Singapore
Equatorial Guinea Qatar Sri Lanka
Fiji South Africa Somalia
Finland Sudan Sweden
France Syria Thailand
Georgia Tunisia Uganda
Germany Turkiye UAE
Greece Tanzania UK
Guatemala Zimbabwe Viet Nam
Honduras
Jordan
Kenya
Latvia
Lebanon
Luxembourg
Maldives
Mali
Malta
Marshall Islands
Micronesia Fed States
Monaco
Montenegro
Morocco
Netherlands
Nigeria
North Macedonia
Palau
Panama
Peru
Portugal
Qatar
Republic of Korea
Romania
Samoa
Senegal
Slovakia
Slovenia
Spain
Switzerland
Togo
Ukraine
Uruguay
Vanuatu

Those who voted against or abstained are likely to refuse recognizing the authority of ICJ and UN in this matter.  In addition some of those absent are also “makers” of hydrocarbon fuels and will oppose the many nations wanting to be “takers” benefiting from the legal circus coming to town.  Many of the Notables voting for are likely to be defendants in this lawfare, especially if they were stupid enough to legislate emissions reduction targets.

Background Post

ICJ Issues Biased Advice on Climate Change

Greenpeace Legal End Run to Avoid US Court is Ruled Out of Bounds

AI generated free pik

Jason Isaac report at The Hill Greenpeace’s attempt to swindle US courts just got harpooned.  Excerpts in italics wtih my bolds and added images.

The North Dakota Supreme Court just drew a bright line for the rule of law, U.S. sovereignty and the energy infrastructure that keeps our country running. On May 7, the court ruled four to one that Greenpeace International cannot use a Dutch court to nullify what a unanimous American jury already decided.

It is a welcome victory, but the fight against eco-lawfare is far from over.

The case began in 2019, when Energy Transfer sued Greenpeace and other activist groups over the coordinated, sometimes violent campaign waged against the Dakota Access Pipeline. After six years of litigation and a three-week trial, twelve North Dakota jurors unanimously found Greenpeace liable for conspiracy, defamation, defamation per se and tortious interference.  The damages exceeded $666 million across the three Greenpeace defendants, with more than $130 million tagged to Greenpeace International alone. The jury heard the evidence and reached its verdict.

That should have been the end of it. It was not.

Two weeks before the North Dakota trial began, after six years of fighting in American courts, Greenpeace International filed a new lawsuit in Amsterdam. The plan was straightforward: ask a Dutch court to declare the North Dakota case “manifestly unfounded and abusive” under a new European Union anti-SLAPP (Strategic Lawsuit Against Public Participation) directive, then use that foreign declaration to erase the verdict and seize Energy Transfer’s assets wherever they could find them. It was a calculated end-run around our judiciary, dressed up in the polite language of European jurisprudence.

The North Dakota Supreme Court saw through it. Justice Jerod Tufte, writing for the majority this month, made the principle clear:

Substance matters, not labels. A claim that requires a foreign court to find an American jury wrong is a collateral attack on that jury, no matter what name the lawyers attach to it.

The court ordered the trial judge to issue a narrowly tailored injunction
blocking Greenpeace from pursuing the parts of its Dutch action
that depend on relitigating what North Dakotans already decided.

The opinion is worth quoting on the point that matters most,  The court wrote,:

“ Comity expires when the strong public policies of the forum
are vitiated by the foreign act.”

In plain English, foreign courts get respect when they earn it. A party that races to Amsterdam on the eve of an American trial to undermine the anticipated verdict cannot then demand that American courts politely defer to the foreign proceeding it manufactured.

This is the right ruling. It is also a narrow one.

The injunction applies to one party in one state. Unfortunately, that means Greenpeace can still pursue the parts of its Dutch action that do not require erasing the North Dakota verdict.

Federal courts have not yet weighed in on whether American courts can block foreign collateral attacks on American judgments. And the federal circuits are split on how heavily international comity should weigh against such injunctions. Other state supreme courts have not taken up the question. The next activist group with a domestic loss and a foreign sympathetic forum will try the same play, just with better lawyers and a cleaner record.

And they have plenty of reasons to keep trying. The European Union’s 2024 anti-SLAPP directive was sold as a shield for journalists and dissidents in countries with weak speech protections. In practice, however, it is becoming a sword aimed at American energy companies that win in court. The directive’s “manifestly unfounded” standard invites foreign judges to second-guess the merits of American court verdicts. Article 17 invites damages claims for the offense of having sued. The architecture is custom-built for the exact tactic Greenpeace attempted.

The deeper problem is that the activist legal industry has discovered something useful. When the protests fail, when the defamation campaigns get punished, when the juries refuse to play along, there is always another forum, another court, another friendly jurisdiction willing to entertain the argument that American energy infrastructure is itself a kind of crime.

The point is not to win on the merits. The point is to make building anything in this country so legally treacherous that capital flees and projects die. This strategy will work in proportion to how seriously American courts take it.

The North Dakota Supreme Court took it seriously. Other courts must follow. Congress should pay attention too. American companies operating under American law, sued in American courts and vindicated by American juries should not have to fight the same case all over again in Amsterdam, Brussels, or anywhere else.

A federal statute clarifying the authority of American courts to block foreign collateral attacks on domestic judgments would put the matter beyond doubt. The Trump administration’s commitment to energy dominance demands nothing less.

The stakes are not abstract. Every data center humming with artificial intelligence, every factory bringing jobs back from overseas, every home heated through a North Dakota winter depends on the ability of American companies to build, operate, and defend the infrastructure that delivers reliable energy. Strip away the certainty that an American verdict actually means something, and that infrastructure becomes a much riskier bet. Risk premiums rise. Capital gets scarcer. Projects do not get built.

Greenpeace lost in North Dakota. It lost again on May 7. This is all good. But the rest of the country needs to make sure those losses stick and continue, because the next case is already being drafted somewhere, and the activists who brought us a six-year siege of the Dakota Access Pipeline are not going to take this defeat as a final answer.  Neither should we.

 

 

 

 

Fossil Fuel Lawsuits Drive Up Energy Prices

How to Sue Fossil Fuel Companies Over Climate Change

Power the Future warns of the large scale attack on US energy platform in an article Green Groups’ 600+ Lawsuits Are Driving Up Energy Costs.  Excerpts in italics with my bolds and added images.

As the Trump Administration meets with oil and gas CEOs to discuss lowering gas prices, there’s a growing question that can’t be ignored: Who is working just as aggressively to stop it?

Green groups have filed over 600 lawsuits targeting energy policies and projects. These efforts are not isolated; they form a coordinated strategy to challenge nearly every aspect of an energy agenda focused on increasing supply and lowering costs.

Organizations like the Natural Resources Defense Council, Sierra Club,
and Earthjustice openly tout their litigation records.

NRDC alone has reported suing the administration more than 160 times, including efforts that helped halt major infrastructure projects like Keystone XL. The Sierra Club has claimed more than 300 cases during Trump’s first term and over 100 additional legal actions in 2025 alone. Earthjustice similarly boasts more than 200 lawsuits.

This is not routine legal oversight; this is a full-scale attack to reshape U.S. energy policy through the courts.

Many of these organizations operate within a broader network of donors, including foreign billionaires like Hansjörg Wyss, whose funding has supported a range of environmental advocacy initiatives. That raises important transparency concerns: if overseas money is helping fuel legal campaigns that influence U.S. energy policy, the public deserves to know.

“The environmental movement has weaponized litigation to deliberately undermine and slow down American energy production at every turn,” said Daniel Turner, Founder and Executive Director of Power The Future. “These groups operate as a well-funded and aggressive adversary to U.S. energy independence, not as some innocent third party simply looking out for nature. While American families and workers suffer from higher energy costs and lost opportunities, these organizations file lawsuit after lawsuit to block responsible domestic development. It’s time to treat them as the serious obstacle they are and shine a light on who is really pulling the strings behind this coordinated campaign against our nation’s energy industry.”

Economist Wayne Winegarden describes the economic damages done by this litiigation in his Forbes article Fossil Fuel Lawsuits Are A Tax On Consumers.  Excerpts in italics with my bolds and added images.

Announcing the state’s lawsuit against energy producers, California AG Rob Bonta claimed it is time to make energy companies pay for “the harm they have caused.” It is one of more than thirty such lawsuits around the country.

As I have argued herehere, and here, these lawsuits are not heroic efforts to safeguard the environment. The filings by cities and state AGs, as well as the dozens of other suits they hope to inspire, will primarily harm families by worsening the affordability crisis that is already harming households across the country. As with any policy that drives up the costs of energy, low- and middle-income families will bear the brunt of the costs.

Of course, harming families and local businesses through higher energy costs is not how the plaintiffs justify their lawsuits. California and other elected officials around the country sell their lawsuits to their local constituents with populist tropes about corporate accountability.

Yet, based on the comments of many of the AGs and plaintiff attorneys, the litigants recognize that one impact from the lawsuits will be higher costs on consumers. For many plaintiffs, imposing larger costs on families and businesses is an intended outcome.

Take comments California’s attorney general made in late April to an environmental group about this litigation. Responding to a questions from the host, he said

“One goal for the litigation is to make oil and gas more expensive as a way to disincentive use of these energy sources and impose billions of dollars in costs that these companies will have to share with their shareholders.”

Higher energy costs harm families’ financial stability. As the Federal Reserve notes, “when gasoline prices increase, a larger share of households’ budgets is likely to be spent on it, which leaves less to spend on other goods and services. The same goes for businesses whose goods must be shipped from place to place or that use fuel as a major input (such as the airline industry). Higher oil prices tend to make production more expensive for businesses, just as they make it more expensive for households to do the things they normally do.”

https://i2.wp.com/royaldutchshellplc.com/wp-content/uploads/2017/07/Screen-Shot-2017-07-18-at-09.18.32.jpg

If the plaintiffs are able to extract a $200 billion settlement from the energy companies, which is much less than what they are asking for, then the price of gasoline would increase by 62-cents a gallon based on my previous analysis relating higher oil prices to higher gasoline costs. That is a more than 17 percent increase in the average price of a gallon of gas as of May 13, 2024.

Further, due to energy’s ubiquitous use, prices would also increase for a wide range of goods such from cell phones to groceries, as well as services, particularly heating and cooling our homes. These higher costs will diminish national economic growth and reduce economic opportunities.

Making matters worse, climate litigation deters companies and investors from allocating their capital toward developing potential clean energy innovations. The deterrent is even larger because technologies that were once heralded as important sources of low-emission energy now face the same serious litigation exposure.

For instance, increasing use of natural gas is an important reason why carbon emissions have been declining over the past twenty years. However, natural gas producers are still targeted in these lawsuits. Given the pollution associated with all energy sources – including solar and wind – the lawsuits send an anti-innovation signal to all potential energy entrepreneurs.

Then there is the lawsuits’ hypocrisy. For example, the California attorney general claims he wants to punish fossil fuel companies because the companies allegedly knew that global climate change was a risk but intentionally hid these risks from the public. But California, the U.S. Government, and governments around the world were also well aware of these risks.

Suing fossil fuel producers for the costs of climate change is economically
damaging, environmentally suspect, and based on dubious claims.

It will also harm families, particularly working families, at a time when they are already struggling with the high cost of living. Ultimately, there are many serious adverse consequences from state and local litigation against traditional energy companies, but no economic upsides should the plaintiffs prevail.

Climate Activists storm the bastion of Exxon Mobil, here seen without their shareholder disguises.

 

DOJ Sues Against Minnesota’s Climate Lawsuit

Climate Change Dispatch reports DOJ Sues Minnesota Over State Climate Lawsuit Targeting Energy Companies.  Excerpts in italics with my bolds and added images.

Justice Department argues the state case oversteps federal authority,
seeks to reshape national energy policy.

The complaint, filed Monday, May 4, in the U.S. District Court for the District of Minnesota, accuses state officials of trying to impose their own climate policies on domestic energy producers in a way the DOJ says burdens national energy development and intrudes on federal authority.

The underlying lawsuit was filed in 2020 by Minnesota Attorney General Keith Ellison against Exxon Mobil, the American Petroleum Institute, Koch Industries, and Koch subsidiary Flint Hills Resources.

Minnesota brought the case under state consumer-protection laws, alleging that the companies engaged in fraud and deceptive business practices by misleading the public about “climate change and the role of fossil-fuel products in climate change.”

That lawsuit remains pending after years of procedural fights over whether it belongs in state or federal court.

Minnesota succeeded in keeping the case in state court in 2024, after the U.S. Supreme Court declined to review a lower-court ruling allowing the lawsuit to proceed there.

In its new complaint, the DOJ argues that authority over national energy policy
and major questions involving greenhouse gas emissions rests
with the federal government, not individual states.

The department is asking the court to block Minnesota from pursuing the 2020 lawsuit and prevent the state from bringing similar litigation in the future.

“Climate change lawsuits, like Minnesota’s, artfully plead around federal law while transparently seeking to change national energy policy related to global greenhouse gas emissions and to regulate conduct beyond local borders,” the complaint states.

The federal government’s move to counter climate litigation with its own lawsuit follows an executive order issued last year by President Donald Trump, who directed the DOJ to “take all appropriate action to stop” state lawsuits seeking to “dictate national energy policy.”

Associate Attorney General Stanley Woodward said in a statement:

“President Trump promised to unleash American energy dominance, and Minnesota officials cannot undermine his directive by mandating that their woke climate preferences become the uniform policy of our Nation,”

“Imagine an argument so airtight about science so settled
over technology so reliable that you have to use censorship
to make sure nobody gives a dissenting opinion.”  @ProctorZ

EPA Endangerment Recission More Epic Than Iran War

William Murray writes at Real Clear Energy The End of EPA’s Endangerment Finding Is a Bigger Deal Than the Iran War.  Excerpts in italics with my bolds and added images.

Two things happened in February that will change the world. The first is the Iran War.

The second is an event so obscure most Americans don’t even know it happened — the Feb. 12 repeal of the 2009 Endangerment Finding by the Trump Administration’s Environmental Protection Agency (EPA). This decision puts a knife into the kidney of all the major U.S. climate rules made under the Obama and Biden administrations. It was the legal underpinning for the Green New Deal.

Of the two events, the end of the Endangerment Finding is of a greater consequence, yet 21st Century conventional wisdom — curated and gatekept by social media, the most unwise medium ever invented — makes it hard to fit one’s head around this argument. But here goes.

The Iran War is costing about $1-2 billion a day in direct costs, and several times that in indirect costs from higher energy prices across most of Europe and Asia, though less so in the United States, which is increasingly energy independent.

Meanwhile, the 2009 Endangerment is one of those “regulatory state” workarounds when Congress doesn’t pass a law or the Supreme Court passes on a tough decision. This administrative decision is the foundation of ALL modern climate regulation and global climate diplomacy. Its reversal has the Trump administration crowing about the $1.3 trillion in savings over the next decade to American citizens through cheaper automobiles, among other things.

This has made a lot of the right people unhappy.

In an interview with The New York Times, Jody Freeman, director of Harvard Law School’s Environmental and Energy Law Program, who happened to design the Endangerment Finding for the Obama White House, said the Trump administration wants “to not just do what other Republican administrations have done, which is weaken regulations. They want to take the federal government out of the business of regulation, period.”

Speaking as someone who worked at the EPA during the first Trump administration, I know Freeman is wrong. Republicans don’t mind environmental regulation based on good incentives that don’t penalize industries that are politically disfavored through no fault of their own.

But there is a human cost to all regulation that is essentially unpriced,
and it is something Freeman and the Left never acknowledge.

Federal regulation itself was invented by the government to improve human lives — think the Safe Drinking Water Act, the Clean Air Act, or the 1938 Fair Labor Standards Act that ended child labor.  The problem is that future choices forgone, which economists call opportunity costs, are nearly impossible to quantify and constrain, thereby stifling innovation and invention in almost unfathomable ways.

Consider the following counterfactual.

If the U.S. Supreme Court had made privacy laws stricter in the late 1990s, sharing pictures of strangers without their permission would have been illegal. This would have disincentivized early camera phone makers, Sharp and Sanyo, from including cameras in the first smartphones in the early 2000s and would have slowed or even undermined Apple’s decision to build the iPhone.

Less than 25 years after the first U.S. camera phone was released, the total value of mobile technologies and services globally exceeds $7 trillion, representing more than 6% of global GDP. Much of these trillions of dollars of newly created wealth exists in the share price of Silicon Valley firms, and the retirement savings of nearly 100 million Americans and the U.S. economy writ large.

What the Endangerment Finding did was create a domestic legal predicate
to treat carbon dioxide as a pollutant under the Clean Air Act.

That predicate, in turn, allowed Democratic administrations to commit America to the Paris Agreement and the broader U.N. climate regime that the U.S. Senate was fooled into accepting when it passed the United Nations Framework Convention on Climate Change (UNFCCC) in 1992.

It’s quite possible that the global climate regime created under UN sponsorship had a similar effect on energy-intensive industries to that a strict privacy law would have had on smartphones, which became the entry point for billions of people into the digital economy.

And now it’s ending.  By undoing the Endangerment Finding, you don’t just repeal a regulation; you repeal the regulatory superstructure that has saddled the United States with trillions of dollars in opportunity costs and billions in explicit costs every year.

Thus, however costly a short conflict with Iran would be, it hasn’t been
nearly as much as the unpriced opportunity costs of
the last 30 years under the UN Climate regime.

Once the U.S. is no longer legally bound at home, it can exit the international framework cleanly. And when America leaves, the dominoes fall in order. Russia, China, India, and Saudi Arabia — none of whom ever believed “the planet is dying” rhetoric anyway — will follow suit. They never saw the climate treaty as anything other than a wealth-transfer mechanism from the West, and now the jig is up for the American Left and the European establishment.

Instead of this transhumanist dystopia, we have the possibility of
returning meaningful heavy industry to the U.S.,
creating over a million good-paying craft jobs,
while still maintaining strong environmental laws
.

Indeed, fears of environmental backsliding could be easily remedied by Congress if it were to pass the Affordable, Reliable, Clean Energy Security Act (ARC-ES)introduced in Congress late last year by Rep. Troy Balderson (R-OH). The ARC-ES bill would codify into law clear definitions of key terms like “affordable,” “reliable,” and “clean,” ensuring that investment risks are limited to cost-effective infrastructure projects only.

The bill would help America’s most affordable, reliable, and environmentally-friendly energy sources, including nuclear and natural gas, remain part of the energy mix — a crucial requirement for American households and businesses.

The fact that neither the ARC-ES nor the Endangerment Finding’s reversal of fortune is anywhere in the news tells you everything you need to know about the current state of global journalism.

This is no slight to the news coverage concerning Iran, which is compelling, but all over the place. It just shows how incentives for informing the public in the 21st century about what truly matters in their lives are weak and getting worse. Perhaps one day someone will invent a better medium for information.

William Murray is a former speechwriter for the Environmental Protection Agency (EPA), the past editor of RealClearEnergy from 2015 to 2017, and currently the chief speechwriter for the Commodity Futures Trading Commission (CFTC).

Footnote:  Fed court rejects costly green housing policy

The Biden administration’s obsession with climate change has contributed to the housing affordability challenges Americans face today, and there are many harmful green policies that need to be undone. The Trump administration is taking an ax to several of them, and it just received a big boost when a U.S. District Court repealed a measure burdening low-income and first-time home buyers.

Specifically, on March 5th, an Eastern District of Texas decision vacated a 2024 requirement from the Department of Housing and Urban Development (HUD) that new homes qualifying for federally-backed mortgages must comply with the 2021 International Energy Conservation Code (IECC). Thankfully, the court in Utah v. HUD found the agency’s actions in violation of the law.

The IECC is a spare-no-expense assault on residential energy use – for example, by requiring far more insulation than makes sense and necessitating costlier appliances. A number of environmental organizations advocated for the IECC’s building code dictates, saying they would ensure that “low-income homeowners and residents are prioritized in a climate-aligned future.”

And mind you, this was HUD – not the Environmental Protection Agency – an agency whose core mission is to make housing more affordable. Yet it was trying to impose these expensive environmental requirements on the very Americans who need federal help to qualify for a mortgage. In fact, over 80% of HUD-backed mortgages have gone to first-time buyers with lower credit scores and smaller down payments than those served by conventional lenders.

X-Weather Attributions by Pseudo-Scientists

Ralph Alexander delves into the phony studies by worldweatherattribution.org in his GWPF paper Contorted Science: The Flawed Logic of Extreme Event Attribution.  Excerpts in italics with my bolds and added images.

London, 24 March. Extreme weather attribution studies are based on flawed logic and generate misleading headlines, according to a new briefing paper from The Global Warming Policy Foundation (GWPF). 

In Contorted Science: The Flawed Logic of Extreme Event Attribution, Dr. Ralph B. Alexander argues that studies attempting to link specific heatwaves, hurricanes and floods to human-caused climate change are fundamentally misleading and have been created for legal and political, rather than scientific reasons

The paper scrutinises recent high-profile studies by World Weather Attribution and the Grantham Institute. In 2025 alone, World Weather Attribution claimed that 24 of 29 extreme events examined were made more severe or more likely by climate change. 

Alexander shows how such conclusions depend heavily on climate models that struggle to reproduce historical climate patterns and assume scientists can accurately simulate a “natural” climate without human emissions.  

Some key recurring weaknesses are identified within attribution studies: 

  • Flawed logic: attribution claims involve “begging the question”, the act of simply assuming the conclusion you are trying to investigate.  
  • Statistical practices that inflate headline probability claims while downplaying uncertainty. 
  • The neglect of historical records showing comparable extreme events long before modern emissions levels. 

The report traces the growth of rapid event attribution to political frustration with the cautious conclusions of the Intergovernmental Panel on Climate Change (IPCC), which has expressed low confidence in long-term global trends for most types of extreme weather. It recognises the role of a 2012 meeting convened by the Union of Concerned Scientists. The meeting was aimed at strengthening the perceived link between extreme weather and climate change in order to pursue litigation against fossil fuel companies. 

The report’s author, Ralph Alexander, said: 

“Extreme event attribution studies are a blot on science, the hallmarks of which are empirical evidence and logic. Neither feature is central to attribution studies, which were created for legal and political not scientific reasons.”

Harry Wilkinson, Head of Policy at The Global Warming Policy Foundation said: 

“It is disturbing that event attribution studies have got so much traction in the international media, despite their underlying flaws. This is a major scientific scandal.”

Read the full report: Contorted Science: The Flawed Logic of Extreme Event Attribution (pdf)

 

Recent event attribution studies 2025 was no exception to the ever-growing trend of assigning weather extremes to global warming: World Weather Attribution contended that 24 of 29 extreme events studied were made more severe or more likely by climate change, as indicated in Figure 1.7 That is a staggeringly large number, at a time when event attribution methodology is still highly uncertain. To begin with, attribution studies rely on computer climate models that have a dismal track record in predicting the future, or indeed of hindcasting the past. Not only do a majority of the models overestimate the warming rate, but they also wrongly predict a hot spot in the upper atmosphere that is not there, and are unable to accurately reproduce sea surface temperatures and sea-level rise.

But, more importantly, the underlying scientific basis of such studies can be questioned too, as done in a recent series of blog posts by Roger Pielke Jr., a prolific climate writer and former professor at the University of Colorado.

Pielke identifies three ‘tricks’ used in event attribution studies to justify their highly exaggerated
claims.

♦  The first, which he terms ‘attribution inflation,’ arises from mathematical sloppiness. Rounding numbers used in calculating probabilities of a particular extreme event happening, instead of retaining decimal points, can lead to inflated and misleading probabilities.
♦  The second trick, which Pielke calls ‘begging the question’ (a logical fallacy), simply assumes the conclusion that the study seeks to prove. For example, assuming that every storm is made stronger due to warmer oceans makes it child’s play to conclude that the storm which just happened was made more likely due to climate change.
♦  The third trick, ‘ignoring evidence,’ means just that. The following sections will reveal numerous examples.

The paper goes on to deconstruct several studies including these examples:

Conclusions

Physicist Friederike Otto, WWA’s chief scientist, has stated:

Unlike every other branch of climate science or science in general, event attribution was actually originally suggested with the courts in mind.

Apart from WWA, the US National Academies have recently established a committee to ‘examine current scientific understanding of attribution of extreme weather events and their impacts on climate change, and consider user needs and opportunities to improve attribution science capabilities.’ Nonetheless, the committee intends to focus on the dubious science behind extreme event attribution, and not any legal ramifications.

It remains to be seen whether multiple court cases against fossil fuel companies, based on extreme event attribution, will succeed. Nevertheless, there is already a burgeoning industry of legal activists with a vested interest in exploiting so-called attribution science. By September 2024, it was estimated that 50 lawsuits had been filed by US states, counties and local governments, and about half that number in Europe and other countries.

Extreme event attribution studies are deeply flawed, with fundamental logical and methodological errors – the result of such studies being created for legal and political, not scientific, reasons. The examples presented here, involving heatwaves, hurricanes and floods, are but a few of the proliferating number of mistaken studies appearing in contemporary scientific reports.

 

 

SCOTUS to Hear Colorado Climate Case, What’s at Stake

An excellent overview is an article at Energy in Depth (EID) by Kyle Kohli A Turning Point for Litigation Campaign: SCOTUS Takes Up Boulder Climate Lawsuit.  Excerpts in italics with my bolds and added images.

On February 23, 2026, the U.S. Supreme Court agreed to hear arguments in the City and County of Boulder’s climate lawsuit against two major energy companies. This offers the first real opportunity to rein in the nationally-coordinated climate litigation campaign that has sought to force policy outcomes through the courts that elected officials and voters have repeatedly rejected.

What is the Boulder climate lawsuit?  

In 2018, the City and County of Boulder and San Miguel County filed a public nuisance climate lawsuit against Exxon Mobil and Suncor, seeking financial damages to pay for the costs of climate change. From the outset, the case raised serious questions about whether local governments should be allowed to use state tort law to extract damages for global phenomena driven by worldwide greenhouse gas emissions that have occurred across decades, across borders, and with the full knowledge and legal sanction of federal and state governments.

Woman on a ducking stool. Historical punishment for ‘common scold’ – woman considered a public nuisance. (Welsh/English heritage)

After San Miguel’s case was separated from Boulder’s in 2021, Boulder spent five years fighting jurisdictional battles – all the way to SCOTUS and back – before finally getting a May 2025 Colorado Supreme Court ruling allowing the case to proceed towards discovery and trial.

The companies appealed, and in February 2026, the U.S. Supreme Court agreed to take up the case.

What questions will the Supreme Court consider and what do they mean?

The Court will hear arguments on two separate questions –
one that goes to the heart of the entire campaign,
and one that could let the justices sidestep it.

The big one: can state law be used to sue energy companies for the effects of international greenhouse gas emissions on global climate change? This is what the climate litigation campaign has always really been about: using tort law as a backdoor emissions regulator, extracting damages that function as a de facto carbon tax that Congress never voted for and voters never approved.

The companies argue that federal law forecloses exactly this kind of state-law end-run, and that issues of greenhouse gas emissions, interstate commerce, national energy policy, and foreign affairs belong at the federal level — not in a patchwork of state courtrooms where judges can impose wildly inconsistent liability on American energy producers.

The second question – added by the Court at Boulder’s urging – asks whether SCOTUS even has jurisdiction to hear the case right now. If the justices rule narrowly on procedure, the broader preemption question stays unresolved and Boulder’s case will continue in state court.

When will the court hear arguments?

Arguments are expected during the October 2026 term, with a decision anticipated in winter 2026 or spring 2027.

What is the likely impact?

This case has nearly three dozen copycats waiting in the wings. Defendants in similar lawsuits across the country are already moving to pause proceedings – several cases, including a homeowner class action in Washington, have been stayed pending SCOTUS’s decision. Others, in Chicago and Washington state have filed similar motions.

If the Court rules broadly for the energy companies — holding that state law cannot be used to impose liability for global and interstate emissions — it would deal a major blow to the entire national climate litigation campaign, as plaintiffs across the country have sought to use state tort law and to have their cases heard in state court.

That would be an appropriate outcome. Allowing dozens of state and municipal governments to impose state-court liability for inherently global phenomena would fragment national energy policy, chill domestic energy production, and circumvent the democratic process by substituting courtroom judgments for legislative ones.

If the justices punt using the jurisdictional question, Boulder’s case would return to state court, but the underlying legal vulnerabilities of the case would remain.

Where do Colorado leaders stand on the case?

The response to the filing of the [Boulder] lawsuit was met immediately with strong opposition from Colorado state leaders, including the Denver Post editorial board and former Secretary of the Interior Gale Norton, who also served as Colorado’s Attorney General.

Then-governor John Hickenlooper and one his top administration officials warned that litigation was not the best way to pursue an environmental agenda. Hickenlooper’s predecessor, current Governor Jared Polis, also didn’t support the case and remained silent on the issue throughout his entire time in office.

Conservation Colorado, a leading environmental group in the state, also declined to publicly support the lawsuit and The Denver Post editorial board delivered sharp rebuke to the lawsuit, writing:

“Without fossil fuels, transportation would stagger to a halt, agricultural productivity would plummet, millions would suffer from cold, heat and hunger, and untold legions would suffer premature death. That’s why any comparison between fossil fuel companies and the tobacco industry, whose product is a health disaster with no redeeming economic value, is so wide of the mark…”

Who did Boulder hire as outside counsel?

Boulder’s attorneys have admitted that their true goals for the litigation aren’t financial damages, but rather achieving preferred public policy outcomes.

A lead attorney for EarthRights International, a nonprofit representing Boulder, said that a key goal of the lawsuit is “to raise the price of the products” like oil and gas to shift the behaviors of companies and consumers. Another attorney long involved with the case, David Bookbinder, was even more direct last year, calling the lawsuit anindirect carbon tax.”

Officials with the Boulder City Council also undercut their own legal arguments by publicly stating their true goal was achieving political and public policy objectives. In 2021, a memo prepared for a study session outlined the goal of “systems-level change”:

“Boulder has also been a national leader in exploring the use of the legal system in pushing for larger systems-level change. Both through its active participation in multi-jurisdiction efforts — like the Clean Power Plan Plaintiffs group — or its climate liability lawsuit with Boulder and San Miguel Counties against ExxonMobil and Suncor, Boulder has demonstrated that there are a range of different levers cities can take hold of to drive more fundamental systems change.” (emphasis added)

Why did the Supreme Court agree to hear the case this time?

Earlier petitions in similar cases, including Honolulu, never made it past the cert stage. This time, several things changed:

The biggest: the Department of Justice proactively weighed in to explain why the Court should take the case – a reversal from the Honolulu petition, whether the Solicitor General argued against review.

Beyond that, the legal landscape has shifted. Since the Honolulu petition was rejected, ten other cases have been thrown out or withdrawn, while two cases have been allowed to proceed – widening the split among state courts that warrants Supreme Court resolution.

Add in the fact that the Colorado Supreme Court’s ruling constitutes a final decision, the companies argue, giving the Supreme Court jurisdictional footing to review it.

Does the EPA’s ruling on the Endangerment Finding impact climate lawsuits?

The EPA has maintained the Clean Air Act will continue to preempt state common law claims and statues that try to regulate out-of-state emissions.

As West Virginia’s Solicitor General, Michael Williams, explained:

“Before the Clean Air Act was a twinkle in Nixon’s eye, there was this whole existing body of federal common law that said interstate emissions issues really are issues for the federal government…Ultimately, I think that if you pull the Clean Air Act back, you’re still left with that original preexisting body of federal common law. It’s going to have the same preemptive force that it did before the Clean Air Act ever came to be.”

Some legal observers have noted that revoking the Endangerment Finding could actually help companies in these climate lawsuits. In the case of Boulder, the Colorado Supreme Court rejected defendants’ argument in part because of the Clean Air Act, there’s no federal common law and no preemptions. Without the endangerment finding, there’s a possibility that federal common law could be used in the defendants’ preemption argument.

However, the Endangerment Finding will not go into effect until April 20, 2026 and could change pending legal challenges.

Lawfare Begins Against Repealing Endangerment Finding–Legalities Outlook

The expected blowback from invested climatists is underway, as reported by legacy media whose bias is with the alarmists.  Examples:

EPA faces lawsuit over scrapping the ‘endangerment finding,’ a pillar of climate regulation, Scientific American

E.P.A. Faces First Lawsuit Over Its Killing of Major Climate Rule, NY Times

Lawsuit: EPA revoking greenhouse gas finding risks “thousands of avoidable deaths”, arstechnica

Public health and green groups sue EPA over repeal of rule supporting climate protections, AP News

The legal battle over EPA finding is underway, Axios

U.S. environment agency sued over scrapping scientific rule behind climate protections, CBC

Etc., Etc.

Outlook for the legal proceedings is provided by David Wojick in his CFACT article EPA’s elegant arguments for endangerment repeal.  Excerpts in italics with my bolds and added images.  H/T Climate- Science.press

EPA’s arguments for repealing the Obama endangerment finding are simple, clear, and strong. So, they have a likely chance of winning in the Supreme Court (SCOTUS), which is where the final decision will be made.

I am working from the lengthy EPA press release which contains what amounts to a summary legal brief of the arguments.

The primary argument is legal and aimed directly at SCOTUS. The release even cites several relevant prior decisions. The gist of these decisions is that agencies cannot find new meaning in old statutes that suddenly gives them enormous new regulatory powers. Such recklessness is called regulatory overreach.

EPA’s argument is that massive overreach is precisely what the endangerment finding did, and it sure looks that way. It was not mission creep, more like mission explosion.

Gas stoves only the thin edge of the wedge.

The statute in question is Section 202(a) of the Clean Air Act which lets
EPA regulate harmful tailpipe emissions from motor vehicles.
The Obama endangerment finding is entirely based on this narrow rule.

Here is how EPA puts it:

“The agency concludes that Section 202(a) of the CAA does not provide statutory authority for EPA to prescribe motor vehicle and engine emission standards in the manner previously utilized, including for the purpose of addressing global climate change, and therefore has no legal basis for the Endangerment Finding and resulting regulations. EPA firmly believes the 2009 Endangerment Finding made by the Obama Administration exceeded the agencys authority to combat air pollution” that harms public health and welfare, and that a policy decision of this magnitude, which carries sweeping economic and policy consequences, lies solely with Congress. Unlike our predecessors, the Trump EPA is committed to following the law exactly as it is written and as Congress intended—not as others might wish it to be.”

This is just the sort of statutory issue the Supreme Court usually deals with.

There is an element of the endangerment finding that is so blatantly wrong that it is hilarious. I would start with it because it certainly makes EPA’s case for repeal, at least in part. EPA mentions it in passing saying this:

“In an unprecedented move, the Obama EPA found that carbon dioxide emissions emitted from automobiles – in combination with five other gases, some of which vehicles dont even emit – contribute an unknown amount to greenhouse gas concentrations in the atmosphere….”

So they used the tailpipe statute to assess (and then regulate)
gases that tailpipes do not emit. There is clearly no
statutory basis for these endangerment findings
.

These are not scientific issues, and SCOTUS does not normally adjudicate science. There are, however, one and a half scientific arguments in case the science comes up. That is, one argument is fully stated in the release while the other is merely alluded to.

Here is the fully stated argument:

“Using the same types of models utilized by the previous administrations and climate change zealots, EPA now finds that even if the U.S. were to eliminate all GHG emissions from all vehicles, there would be no material impact on global climate indicators through 2100.”

This is actually an endangerment finding, namely that there is none.

Here is the alluded to argument:

“….the Obama EPA found that carbon dioxide emissions emitted from automobiles – in combination with five other gases, some of which vehicles dont even emit – contribute an unknown amount to greenhouse gas concentrations in the atmosphere that, in turn, play a role through varied causal chains that may endanger human health and welfare.”

Lancet: A 2015 study by 22 scientists from around the world found that cold kills over 17 times more people than heat.

The several scientific issues here are the reality of the “varied causal chains” claimed in the Obama endangerment finding. These causal issues include a great deal of alarmism.

As science, the endangerment finding is a complex attribution claim, and these are highly speculative and contentious. These causal chain issues may be elaborated in the technical support documents for the repeal. But if they are at least mentioned, as in the release, it creates a placeholder for them, in case they come up during the SCOTUS arguments.

Since 1920, deaths each year from natural disasters have decreased by over 90 percent, not only as the planet has warmed, but as world population has quadrupled.

EPA has mounted some elegant arguments for repeal of the endangerment finding. Stay tuned to CFACT as this drama unfolds.

Footnote on Bjorn Lomborg’s estimates of Climate impact from reducing GHG emissions 

Governments have publicly outlined their post-2020 climate commitments in the build-up to the December’s meeting. These promises are known as “Intended Nationally Determined Contributions” (INDCs).

♦  The climate impact of all Paris INDC promises is minuscule: if we measure the impact of every nation fulfilling every promise by 2030, the total temperature reduction will be 0.048°C (0.086°F) by 2100.

♦  Even if we assume that these promises would be extended for another 70 years, there is still little impact: if every nation fulfills every promise by 2030, and continues to fulfill these promises faithfully until the end of the century, and there is no ‘CO₂ leakage’ to non-committed nations, the entirety of the Paris promises will reduce temperature rises by just 0.17°C (0.306°F) by 2100.

♦  US climate policies, in the most optimistic circumstances, fully achieved and adhered to throughout the century, will reduce global temperatures by 0.031°C (0.057°F) by 2100.

♦  EU climate policies, in the most optimistic circumstances, fully achieved and adhered to throughout the century, will reduce global temperatures by 0.053°C (0.096°F) by 2100.

♦  China climate policies, in the most optimistic circumstances, fully achieved and adhered to throughout the century, will reduce global temperatures by 0.048°C (0.086°F) by 2100.

♦  The rest of the world’s climate policies, in the most optimistic circumstances, fully achieved and adhered to throughout the century, will reduce global temperatures by 0.036°C (0.064°F) by 2100.

Overview in Celsius and Fahrenheit by the year 2100