UAH Ocean Stays Cool, SH Land Warms, October 2025

The post below updates the UAH record of air temperatures over land and ocean. Each month and year exposes again the growing disconnect between the real world and the Zero Carbon zealots.  It is as though the anti-hydrocarbon band wagon hopes to drown out the data contradicting their justification for the Great Energy Transition.  Yes, there was warming from an El Nino buildup coincidental with North Atlantic warming, but no basis to blame it on CO2.

As an overview consider how recent rapid cooling  completely overcame the warming from the last 3 El Ninos (1998, 2010 and 2016).  The UAH record shows that the effects of the last one were gone as of April 2021, again in November 2021, and in February and June 2022  At year end 2022 and continuing into 2023 global temp anomaly matched or went lower than average since 1995, an ENSO neutral year. (UAH baseline is now 1991-2020). Then there was an usual El Nino warming spike of uncertain cause, unrelated to steadily rising CO2, and now dropping steadily back toward normal values.

For reference I added an overlay of CO2 annual concentrations as measured at Mauna Loa.  While temperatures fluctuated up and down ending flat, CO2 went up steadily by ~65 ppm, an 18% increase.

Furthermore, going back to previous warmings prior to the satellite record shows that the entire rise of 0.8C since 1947 is due to oceanic, not human activity.

gmt-warming-events

The animation is an update of a previous analysis from Dr. Murry Salby.  These graphs use Hadcrut4 and include the 2016 El Nino warming event.  The exhibit shows since 1947 GMT warmed by 0.8 C, from 13.9 to 14.7, as estimated by Hadcrut4.  This resulted from three natural warming events involving ocean cycles. The most recent rise 2013-16 lifted temperatures by 0.2C.  Previously the 1997-98 El Nino produced a plateau increase of 0.4C.  Before that, a rise from 1977-81 added 0.2C to start the warming since 1947.

Importantly, the theory of human-caused global warming asserts that increasing CO2 in the atmosphere changes the baseline and causes systemic warming in our climate.  On the contrary, all of the warming since 1947 was episodic, coming from three brief events associated with oceanic cycles. And in 2024 we saw an amazing episode with a temperature spike driven by ocean air warming in all regions, along with rising NH land temperatures, now dropping well below its peak.

Chris Schoeneveld has produced a similar graph to the animation above, with a temperature series combining HadCRUT4 and UAH6. H/T WUWT

image-8

See Also Worst Threat: Greenhouse Gas or Quiet Sun?

October 2025 UAH Temps: Cool Ocean, Warm Land  banner-blog

With apologies to Paul Revere, this post is on the lookout for cooler weather with an eye on both the Land and the Sea.  While you heard a lot about 2020-21 temperatures matching 2016 as the highest ever, that spin ignores how fast the cooling set in.  The UAH data analyzed below shows that warming from the last El Nino had fully dissipated with chilly temperatures in all regions. After a warming blip in 2022, land and ocean temps dropped again with 2023 starting below the mean since 1995.  Spring and Summer 2023 saw a series of warmings, continuing into 2024 peaking in April, then cooling off to the present.

UAH has updated their TLT (temperatures in lower troposphere) dataset for October 2025. Due to one satellite drifting more than can be corrected, the dataset has been recalibrated and retitled as version 6.1 Graphs here contain this updated 6.1 data.  Posts on their reading of ocean air temps this month are ahead the update from HadSST4 or OISST2.1.  I posted recently on SSTs September 2025 Ocean SST Cooling These posts have a separate graph of land air temps because the comparisons and contrasts are interesting as we contemplate possible cooling in coming months and years.

Sometimes air temps over land diverge from ocean air changes. In July 2024 all oceans were unchanged except for Tropical warming, while all land regions rose slightly. In August we saw a warming leap in SH land, slight Land cooling elsewhere, a dip in Tropical Ocean temp and slightly elsewhere.  September showed a dramatic drop in SH land, overcome by a greater NH land increase. 2025 has shown a sharp contrast between land and sea, first with ocean air temps falling in January recovering in February.  Now in September and October SH land temps have spiked while ocean temps showed litle change.  As a result of larger ocean surface, Global temps remained cool.

Note:  UAH has shifted their baseline from 1981-2010 to 1991-2020 beginning with January 2021.   v6.1 data was recalibrated also starting with 2021. In the charts below, the trends and fluctuations remain the same but the anomaly values changed with the baseline reference shift.

Presently sea surface temperatures (SST) are the best available indicator of heat content gained or lost from earth’s climate system.  Enthalpy is the thermodynamic term for total heat content in a system, and humidity differences in air parcels affect enthalpy.  Measuring water temperature directly avoids distorted impressions from air measurements.  In addition, ocean covers 71% of the planet surface and thus dominates surface temperature estimates.  Eventually we will likely have reliable means of recording water temperatures at depth.

Recently, Dr. Ole Humlum reported from his research that air temperatures lag 2-3 months behind changes in SST.  Thus cooling oceans portend cooling land air temperatures to follow.  He also observed that changes in CO2 atmospheric concentrations lag behind SST by 11-12 months.  This latter point is addressed in a previous post Who to Blame for Rising CO2?

After a change in priorities, updates are now exclusive to HadSST4.  For comparison we can also look at lower troposphere temperatures (TLT) from UAHv6.1 which are now posted for October 2025.  The temperature record is derived from microwave sounding units (MSU) on board satellites like the one pictured above. Recently there was a change in UAH processing of satellite drift corrections, including dropping one platform which can no longer be corrected. The graphs below are taken from the revised and current dataset.

The UAH dataset includes temperature results for air above the oceans, and thus should be most comparable to the SSTs. There is the additional feature that ocean air temps avoid Urban Heat Islands (UHI).  The graph below shows monthly anomalies for ocean air temps since January 2015.

In 2021-22, SH and NH showed spikes up and down while the Tropics cooled dramatically, with some ups and downs, but hitting a new low in January 2023. At that point all regions were more or less in negative territory.

After sharp cooling everywhere in January 2023, there was a remarkable spiking of Tropical ocean temps from -0.5C up to + 1.2C in January 2024.  The rise was matched by other regions in 2024, such that the Global anomaly peaked at 0.86C in April. Since then all regions have cooled down sharply to a low of 0.27C in January.  In February 2025, SH rose from 0.1C to 0.4C pulling the Global ocean air anomaly up to 0.47C, where it stayed in March and April. In May drops in NH and Tropics pulled the air temps over oceans down despite an uptick in SH. At 0.43C, ocean air temps were similar to May 2020, albeit with higher SH anomalies. Now in September/October Global ocean temps are little changed with Tropics dropping again along with NH declining slightly..

Land Air Temperatures Tracking in Seesaw Pattern

We sometimes overlook that in climate temperature records, while the oceans are measured directly with SSTs, land temps are measured only indirectly.  The land temperature records at surface stations sample air temps at 2 meters above ground.  UAH gives tlt anomalies for air over land separately from ocean air temps.  The graph updated for October is below.

Here we have fresh evidence of the greater volatility of the Land temperatures, along with extraordinary departures by SH land.  The seesaw pattern in Land temps is similar to ocean temps 2021-22, except that SH is the outlier, hitting bottom in January 2023. Then exceptionally SH goes from -0.6C up to 1.4C in September 2023 and 1.8C in  August 2024, with a large drop in between.  In November, SH and the Tropics pulled the Global Land anomaly further down despite a bump in NH land temps. February showed a sharp drop in NH land air temps from 1.07C down to 0.56C, pulling the Global land anomaly downward from 0.9C to 0.6C. Some ups and downs followed with returns close to February values in August.  Now in October we see a remarkable spike in SH land temps, supported by NH and Tropics in September.

The Bigger Picture UAH Global Since 1980

The chart shows monthly Global Land and Ocean anomalies starting 01/1980 to present.  The average monthly anomaly is -0.0, 2for this period of more than four decades.  The graph shows the 1998 El Nino after which the mean resumed, and again after the smaller 2010 event. The 2016 El Nino matched 1998 peak and in addition NH after effects lasted longer, followed by the NH warming 2019-20.   An upward bump in 2021 was reversed with temps having returned close to the mean as of 2/2022.  March and April brought warmer Global temps, later reversed

With the sharp drops in Nov., Dec. and January 2023 temps, there was no increase over 1980. Then in 2023 the buildup to the October/November peak exceeded the sharp April peak of the El Nino 1998 event. It also surpassed the February peak in 2016. In 2024 March and April took the Global anomaly to a new peak of 0.94C.  The cool down started with May dropping to 0.9C, and in June a further decline to 0.8C.  October went down to 0.7C,  November and December dropped to 0.6C.In August Global Land and Ocean went down to 0.39C, then rose slightly to 0.53 in October.

The graph reminds of another chart showing the abrupt ejection of humid air from Hunga Tonga eruption.

TLTs include mixing above the oceans and probably some influence from nearby more volatile land temps.  Clearly NH and Global land temps have been dropping in a seesaw pattern, nearly 1C lower than the 2016 peak.  Since the ocean has 1000 times the heat capacity as the atmosphere, that cooling is a significant driving force.  TLT measures started the recent cooling later than SSTs from HadSST4, but are now showing the same pattern. Despite the three El Ninos, their warming had not persisted prior to 2023, and without them it would probably have cooled since 1995.  Of course, the future has not yet been written.

Cal Laws Compell PC Climate Speech, Exxon Sues for Free Speech

Tim O’Brien explains the climate lawfare in his PJ article Is California Attempting to ‘Suicide’ Big Oil and Write the Suicide Note? Excerpts in italics with my bolds and added images.

Sometimes big corporations are their own worst enemies. They say things and do things that at the moment sound good and perhaps win an immediate PR battle, but those same words or positions can come back to bite them later. Such is the case for ExxonMobil. 

Back in 2006, almost 20 years ago, the company’s then-CEO Rex Tillerson told the New York Times that a company report had acknowledged the link between the consumption of fossil fuels and rising global temperatures, saying, “We recognize that climate change is a serious issue.” He then added, “We recognize that greenhouse gas emissions are one of the factors affecting climate change.” 

This massive gesture of appeasement was a major concession, and it awarded a huge victory to climate alarmists. In that same article, the Times suggested that if Tillerson was successful, ExxonMobil would “no longer be the oil company that environmentalists love to hate.” 

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

How’d that work out? Did they back off of ExxonMobil and other big oil companies as a result? No, they ramped up the pressure so steadily and so heavily that over the years, “climate change” activists led ExxonMobil by the nose. It went full bore into “sustainability,” and it even supports the Paris Agreement, also known as the Paris Climate Accord. 

After years of incremental surrender to the left, the company now finds itself in the position of having to sue the state of California over a pair of 2023 “disclosure laws” that amount to the state mandating what companies can and cannot say about certain climate change matters. 

Last week, the company sued California in the U.S. District Court for the Eastern District of California on claims that Senate Bills 253 and 261 “trumpet California’s message.” The message in question, apparently, is that big oil and other major companies are “uniquely responsible for climate change.” In its lawsuit, Exxon Mobil said it considers this sort of message as “misleading.” The suit challenges both laws on grounds that they are First Amendment violations. The intent of the litigation is to stop these laws from going into effect in 2026. 

The climate alarmists and their entire sector are portraying the laws as requiring basic “climate-related transparency.” 

But if you dig into these laws, it reminds me of that old saying about free speech. It goes like this: “Communist China believes in free speech. So long as you say what the government likes, you can say whatever you want.” That pretty much sums up this situation.

More specifically, ExxonMobil contends that to comply, it would need to
rely on “frameworks that place disproportionate blame
on large companies like ExxonMobil.”

Senate Bill 253

Gov. “Slick” Newsom signed Senate Bill 253 (the Climate Corporate Data Accountability Act) into law in 2023. It requires big companies to disclose a wide range of emissions, and not just the stuff coming out of their industrial pipes and smoke stacks. They’d even have to report “direct and indirect emissions” that would include quantitative measurement of and a cost for employee business travel and product transport. 

I’ve seen some of this type of internal tracking and reporting up close, and it’s ridiculous. It’s all in line with ESG measurements and processes that are inconsistent at best. Just as often, it’s a scoring system built on “Wild A** Guesses.” 

Senate Bill 261

Senate Bill 261 (or the Climate-related Financial Risk Act ) gets even more pointedly at the First Amendment issues at play. This law requires businesses that generate more than $500 million per year to “disclose” the financial impacts and risks they face from climate change, and how they will respond. 

More to the point, ExxonMobil said that if it even tried to comply with this law, it would have to guess on things it can’t even know about in advance. Essentially, it would have to try to predict the future and put those predictions on its own website. 

At the same time, the suit points out that Exxon doesn’t even have
any crude oil or natural gas exploration, production, manufacturing,
transport or refining operations in California. 

On the First Amendment issue, in ExxonMobil’s case, the company is expected to argue that both laws require companies to speak publicly in specific ways. The laws don’t simply mandate that the company disclose factual data on past activities and results, but rather that it must speculate in ways it cannot reasonably and responsibly do. 

This is “compelled speech.” While the First Amendment protects the right to speak, it also protects the right not to have the government force you to speak, or to incorporate the government’s desired message. This is known as the “compelled speech doctrine.” While it is usually described as it pertains to individual rights, there is some history of commercial businesses running into this same issue.

What all of this amounts to is it seems that as industries go, California is attempting to “suicide” Big Oil, and it even wants to write the suicide note for the industry.

World Dodged UN Climate Bullet, thanks to US

Matthew Boyle breaks the news at Breitbart Mike Waltz Reveals How Trump Killed ‘Global Green Tax’ That Would Have Created ‘U.N. Climate Slush Fund’ at 11th Hour.  Excerpts in italics with my bolds and added images.

NEW YORK — U.S. Ambassador to the United Nations Mike Waltz told Breitbart News exclusively of how President Donald Trump and his cabinet rallied at the 11th hour to thwart globalists from creating a “global green tax” that he argued would have created a “U.N. climate slush fund.”

“They were this close to mandating that we basically have a Green New Deal in our global shipping fleet,” Waltz told Breitbart News on the floor of the U.N. General Assembly in the interview taped on Thursday, Oct. 23. “Eighty percent of our economy is based on trade. It would have been devastating. In fact, it would have added a billion dollars a month to the cost of sending our goods around the world or receiving goods. We got fired up as a cabinet — the EU, Brazil, and others thought this thing was a done deal. We got everybody involved, including the president. He came in off the top ropes, and we defeated that vote. I think we just saved the American consumer a massive, massive — what would have been the first U.N. tax in global history just this past week. So that’s the kind of fighting that we’re doing in the types of these organizations, and the kind of wins that we have to deliver for the American people.”

Waltz further explained that the tax that would have been created would have targeted U.S. ships and forced them either to pay billions in global taxes or go through retrofitting in China to use European-backed power sources — but ultimately this has been stopped. He does expect the globalists who pushed this effort to try again, but he said next time the Trump administration will be even more prepared and will stop it again.

“If we had coal fired, gas fired, oil fired ships, this global organization was going to impose a fine on those shipping companies, of course, and that would have been to the tune of a billion dollars a month globally that would have been passed on to the consumers, obviously,” Waltz said. “That money then would have would have formed a U.N.-run green climate slush fund to the tune of $12 to $15 billion a year that would have turned around and done more and more of this. It really would have been the first global green tax and I think we would have felt it through inflation. We would have felt it on our consumer shelves and it would have been yet another assault on the American oil and gas industry.

Published by European Maritime Safety Agency

“We said there will be consequences if you do this and we laid out what those consequences were. Now, we were accused of being diplomatic gangsters and bullies and what have you. But look, it was they who are being the climate bullies and we’re not going to allow them to do that to our shipping fleet. If it had happened, here was the real secret. The EU was subsidizing all the biofuels that they wanted to push to our ships and the only place we could retrofit our ships were in Chinese ports and shipyards. So this would have been a win for the EU, a win for China, a loss for the United States. We said, ‘We’re not going to have it,’ and we got in there and won.”

So, are they trying again? Of course they’re going to try again. As we came at this, frankly, a little bit last-minute, we won, but we delayed the vote until next year. We’re going to make our position crystal clear, and I don’t think this thing is going to get through now. This is just the tip of the iceberg. It’s what’s happening in these over 80 organizations around the world. What it really amounts to is a climate ideology that is nonsensical. It’s an ideology that just doesn’t make sense. For example, in AI [artificial intelligence], a big piece of that is power. You can’t power AI through wind and solar — you just can’t — and we already know the President’s problems with wind. We already know that the vast majority of solar panels are made where? In China.

But we need an all-of-the-above solution. We need nuclear, we need gas, we need oil, we need coal, and those other renewable forms of energy in order to win. But what we find is even when we reach, say, some kind of trade deal with a country or with the EU, then they try to back door these regulations in favor of them and against us through these international organizations that are often under the U.N. umbrella. That’s why we need fighters in here. I have Tammy Bruce who will be going to the Senate to be the Deputy Ambassador here. We have myself, and we have other members of the team that 100 percent believe in the President’s America first agenda. We’re going to start fighting and blocking and tackling in these organizations.”

Addendum on Biofuels, the worst energy choice, disqualified for “All of the Above”

Put simply, power density is just how much stuff it takes to get your energy; how much land or other physical resources. And we measure it by how many watts you can get per square meter, or liter, or kilogram – which, if you’re like us…probably means nothing to you.

So let’s put this in tangible terms. Just about the worst energy source America has by the standards of power density are biofuels, things like corn-based ethanol. Biofuels only provide less than 3% of America’s energy needs–and yet, because of the amount of corn that has to be grown to produce it … they require more land than every other energy source in the country combined. Lots of resources going in, not much energy coming out–which means they’re never going to be able to be a serious fuel source.  Moreover, it cannibalizes arable land needed for food.

Value of Decarbonizing Pledges? Net Zero.

There are two reasons why Bill Gates and hundreds of Corporations and many countries are backtracking on commitments to decarbonize.  One is disbelieving the false advertising that the planet is in danger and can be saved by Net Zero efforts. Second is sobering up to the fact that decarbonizing the world is an impossible fantasy.  This post includes content from Gary Abernathy on the first point and some quotes from Vaclav Smil’s recent paper on the second.

  1.  Abernathy writes at Real Clear Energy In practice, ‘Net Zero’ Was Exactly How Much Such Pledges Were Worth.  Excerpts in italics with my bolds and added images.

The public “net zero” pledges by countless corporate and political entities in recent years were always baffling. How could the United States or much of the industrialized world reach “net zero” emissions without destroying modern living?

As a reminder, “net zero” is a term coined to illustrate a goal of “eliminating greenhouse gas emissions produced by human activities, which is accomplished by decreasing global emissions and abating them from the atmosphere,” as defined by Net0.com, a company that describes itself as “the market leader in AI-First Sustainability, enabling governments and enterprises worldwide to enhance their environmental performance and decarbonize profitably.”

Net0 posits that “the global scientific community agrees that to mitigate the most severe impacts of climate change, we must reduce worldwide net human-generated carbon dioxide emissions by approximately 45 percent from their 2010 levels by the year 2030 and achieve net zero emissions by around 2050.”

In a political atmosphere shaming anyone who didn’t join the climate cult – led in the U.S. by the Biden administration and globally by the U.N. – attempting to outdo each other for the most aggressive “net zero” policy was all the rage.

“As of June 2024, 107 countries… had adopted net-zero pledges either in law, in a policy document such as a national climate action plan or a long-term strategy, or in an announcement by a high-level government official,” boasted the United Nations.

More than 9,000 companies, over 1,000 cities, more than 1,000 educational institutions, and over 600 financial institutions have joined the Race to Zero, pledging to take rigorous, immediate action to halve global emissions by 2030.”

But as politicians know, promises and actions are often unrelated. Most people endowed with even a modicum of common sense and a grade-school understanding of basic science knew that meeting “net zero” goals would require a reduction in the use of our most affordable, effective and reliable energy sources to a degree that would devastate modern economies.

The fact that “net zero” pledges were nothing but a cruel joke was made clear last month in a story by NPR headlined,Leaders promised to cut climate pollution, then doubled down on fossil fuels.” Most thinking people were as surprised by that headline as by discovering wet water, hot fire or flying birds. It was not necessary to read further. “Of course,” they said to themselves, moving on to the next story.

But there are, sadly, climate cult converts who, in their shock, likely needed more details.

They discovered: “The world is producing too much coal, oil and natural gas to meet the targets set 10 years ago under the Paris Agreement, in which countries agreed to limit climate pollution and avoid the worst effects of global warming,” NPR reported.  The story said:

“A new report, led by the nonprofit research group Stockholm Environment Institute, shows countries plan to produce more than twice the amount of fossil fuels in 2030 than would be consistent with limiting global heating to 1.5 degrees Celsius (2.7 degrees Fahrenheit).”

For the true believers, here’s the real punch to the gut: “The SEI report shows the 20 most polluting countries, including China, the U.S. and India, actually plan to produce even more fossil fuels than they did two years ago, when the report was last updated.”

Of course, as he did in his first term, President Trump is pulling the U.S. out of the Paris Agreement as he unleashes American industry and works to ensure energy affordability, independence and security for the nation. Legislation to roll back taxpayer subsidies for “renewables” and return to “reliables” has already been passed or introduced in various states and is soon likely to be fortified at the federal level.

After wasting billions of tax dollars on wind and solar subsidies that could have been directed toward schools, healthcare or other real needs, the fever is finally breaking. The world is slowly but surely awakening from the delusions of climate zealots who insisted that we were on the verge of catastrophe with constantly worsening weather disasters.

Just last May, for example, NOAA the National Oceanic and Atmospheric Administration predicted an “above-normal 2025 Atlantic hurricane season.” And just a few months earlier, PBS NewsHour reported on a study showing that “human-caused climate change made Atlantic hurricanes about 18 miles per hour (29 kilometers per hour) stronger in the last six years.”

The message was clear. More hurricanes.
Stronger hurricanes. This year’s reality so far?

“The 2025 Atlantic hurricane season is the first time in 10 years that a hurricane has not made landfall in the United States through the end of September,” according to American Press. While “hurricane season” extends through November, September is usually the busiest month.

The weather is – and has always been – unpredictable. Severe weather events like hurricanes, tornadoes, monsoons, floods, blizzards and drought have always been with us, and always will. The attempt to demonize humankind for the frequency and severity of the weather has been politically motived and economically disastrous.

“Net zero” pledges are being revealed for the false promises they most often were, designed mainly to win plaudits from the Lecturing Left. For leaders grounded in facts, real-world needs have always meant that no one is easing off the gas.

2. Vaclav Smil’s paper is at Fraser Institute Halfway between Kyoto and 2050.  Overview and keynote section are reprinted below with my bolds and added images.

      Contents
Executive Summary
Introduction
1. Carbon in the Biosphere
2. Energy Transitions
3. Our Record So Far
4. What It Would Take to Reverse the Past Emission Trend
5. The Task Ahead: Zero Carbon Electricity and Hydrogen
6. Costs, Politics, and Demand
7. Realities versus Wishful Thinking
8. Closing Thoughts
Executive Summary

♦  This essay evaluates past carbon emission reduction and the feasibility of eliminating fossil fuels to achieve net-zero carbon by 2050.

♦  Despite international agreements, government spending and regulations, and technological advancements, global fossil fuel consumption surged by 55 percent between 1997 and 2023.  And the share of fossil fuels in global energy consumption has only decreased from nearly 86 percent in 1997 to approximately 82 percent in 2022.

♦  The first global energy transition, from traditional biomass fuels such as wood and charcoal to fossil fuels, started more than two centuries ago and unfolded gradually.

♦  That transition remains incomplete, as billions of people still rely on traditional biomass energies for cooking and heating.

♦  The scale of today’s energy transition requires approximately 700 exajoules of new non-carbon energies by 2050, which needs about 38,000 projects the size of BC’s Site C or 39,000 equivalents of Muskrat Falls.

♦  Converting energy-intensive processes (e.g., iron smelting, cement, and plastics) to non-fossil alternatives requires solutions not yet available for largescale use.

♦  The energy transition imposes unprecedented demands for minerals including copper and lithium, which require substantial time to locate and develop mines.

♦  To achieve net-zero carbon, affluent countries will incur costs of at least 20 percent of their annual GDP.

♦  While global cooperation is essential to achieve decarbonization by 2050, major emitters such as the United States, China, and Russia have conflicting interests.

♦  To eliminate carbon emissions by 2050, governments face unprecedented technical, economic and political challenges, making rapid and inexpensive transition impossible.

7. Realities versus Wishful Thinking

Since the world began to focus on the need to end the combustion of fossil fuels, we have not made the slightest progress in the goal of absolute global decarbonization: emission declines in many affluent countries were far smaller than the increased consumption of coal and hydrocarbons in the rest of the world, a trend that has also reflected the continuing deindustrialization in Europe and North America and the rising shares of carbon-intensive industrial production originating in Asia. As a result, by 2023 the absolute reliance on fossil carbon rose by 54 percent worldwide since the Kyoto commitment. Moreover, a significant part of emission declines in many affluent countries has been due to their deindustrialization, to transferring some of their carbon-intensive industries abroad, above all to China.

A recent international analysis of 1500 climate policies around the world concluded that 63 or 4% of them were successful in reducing emissions.

Denmark, with half of its electricity now coming from wind, is often pointed out as a particular decarbonization success: since 1995 it cut its energy-related emissions by 56 percent (compared to the EU average of about 22 percent)—but, unlike its neighbours, the country does not produce any major metals (aluminum, copper, iron, or steel), it does not make any float glass or paper, does not synthesize any ammonia, and it does not even assemble any cars. All these products are energy-intensive, and transferring the emissions associated with their production to other countries creates an undeservedly green reputation for the country doing the transferring.

Given the fact that we have yet to reach the global carbon emission peak (or a plateau) and considering the necessarily gradual progress of several key technical solutions for decarbonization (from large-scale electricity storage to mass-scale hydrogen use), we cannot expect the world economy to become carbon free by 2050. The goal may be desirable, but it remains unrealistic. The latest International Energy Agency World Energy Outlook report confirms that conclusion. While it projects that energy-related CO2 emissions will peak in 2025, and that the demand for all fossil fuels will peak by 2030, it also anticipates that only coal consumption will decline significantly by 2050 (though it will still be about half of the 2023 level), and that the demand for crude oil and natural gas will see only marginal changes by 2050 with oil consumption still around 4 billion tons and natural gas use still above 4 trillion cubic meters a year (IEA, 2023d).

Wishful thinking or claiming otherwise should not be used or defended by saying that doing so represents “aspirational” goals. Responsible analyses must acknowledge existing energy, material, engineering, managerial, economic, and political realities. An impartial assessment of those resources indicates that it is extremely unlikely that the global energy system will be rid of all fossil carbon by 2050. Sensible policies and their vigorous pursuit will determine the actual degree of that dissociation, which might be as high as 60 or 65 percent. More and more people are recognizing these realities, and fewer are swayed by the incessant stream of miraculously downward-bending decarbonization scenarios so dear to demand modelers.

Long-term global energy forecasts offering numbers for overall demand or supply and for shares contributed by specific sources or conversions are beyond our capability: the system is too complex and too open to unforeseen but profound perturbations for such specificity. However, skepticism in constructing long-term estimates will lessen the extent of inevitable errors. Here is an example of a realistic 2023 forecast done by Norwegian risk management company DNV that has been echoed recently by other realistic assessments. After noting that global energy-related emissions are still climbing (but might peak in 2024 when the transition would effectively begin) it concludes that by 2050 we will move from the present roughly 80 percent fossil/20 percent non-fossil split to a 48 percent/52 percent ratio by 2050, with primary energy from fossil fuels declining by nearly two-thirds but still remaining at about 314 EJ by 2050—in other words, about as high as it was in 1995 (DNV, 2023).

Again, that is what any serious student of global energy transitions would expect. Individual components change at different speeds and notably rapid transformations are possible, but the overall historical pattern quantified in terms of primary energies is one of gradual changes. Unfortunately, modern forecasting in general and the anticipation of energy advances in particular have an unmistakable tendency toward excessive optimism, exaggeration, and outright hype (Smil, 2023b). During the 1970s many people believed that by the year 2000 all electricity would come not just from fission, but from fast breeder reactors, and soon afterwards came the promises of “soft energy” taking over (Smil, 2000).

Belief in near-miraculous tomorrows never goes away. Even now we can read declarations claiming that the world can rely solely on wind and PV by 2030 (Global100REStrategyGroup, 2023). And then there are repeated claims that all energy needs (from airplanes to steel smelting) can be supplied by cheap green hydrogen or by affordable nuclear fusion. What does this all accomplish besides filling print and screens with unrealizable claims? Instead, we should devote our efforts to charting realistic futures that consider our technical capabilities, our material supplies, our economic possibilities, and our social necessities—and then devise practical ways to achieve them. We can always strive to surpass them—a far better goal than setting ourselves up for repeated failures by clinging to unrealistic targets and impractical visions.

 

US Nuclear Power Revival

Duggan Flanakin writes at Real Clear Energy Data Centers, Trump Spark U.S. Nuclear Revival.  Excerpts in italics with my bolds and added images.

With a strong push from the Trump White House, for the first time since Three Mile Island, the nuclear energy industry in the U.S. is bullish about its future. It’s about time, given that the average existing U.S. nuclear power plant was built based on 1980s technology.

A major reason for the virtual standstill in nuclear energy development in the U.S. was the Nuclear Regulatory Commission’s near-maniacal effort to reassure a skittish public that they would not issue permits to any nuclear power plant that had the potential for public harm.

The shot heard round the world signaling a change in U.S. nuclear energy policy was the summary firing of NRC Commissioner Christopher Hanson, whose divinity school background may have contributed to a perception he viewed his job as more a gatekeeper for regulatory control than a partner in building a U.S. nuclear future.  As Senate Environment and Public Works Committee chair Shelley Moore Capito (R, WV) said,

“For decades, the NRC took too long, cost too much, and did not have a predictable and efficient process to approve new licenses or modernize outdated regulations.” 

Newly installed NRC Chair David Wright has called the Trump directives not “just regulatory reform” but a “cultural transformation that positions the NRC to be a forward-leaning, risk-informed regulator for the future.” The agency’s internal culture is being reshaped into a more efficient and modern agency without sacrificing public safety, Wright said.

Several MEPs (mainly Greens) hold up anti-nuclear posters at the debate.

But it’s not just the NRC that is being transformed. Under presidents from Carter to Biden, nuclear was largely relegated to the closet as the primary focus was the media-driven “green energy” crusade. Wind and solar permits were issued without the cleanup requirements and prepayments mandatory for nuclear and fossil fuel facilities. Nuclear was deemed “dirty.”

The first Trump term was so mangled by political infighting (both intra-party and cross-party) that any real nuclear energy agenda lay buried among the lawsuits. In the interim, however, artificial intelligence made giant leaps and the demand for electric power for fast-growing data centers was exploding. Wind and solar cannot be relied upon by entities dependent upon 24/7/365 power – and nuclear is still viewed as the “cleaner” option vis-à-vis natural gas.

Even before Trump’s reelection, tech giants were busily signing nuclear energy deals to power their data centers. Last September the owner of the long-shuttered Three Mile Island Unit 1 nuclear power plant announced plans to restart operations in 2027, thanks to a 20-year power purchase agreement with Microsoft for a nearby AI data center.

Last October Amazon and Google both announced they would be investing in small modular reactors for AI data centers. Two months later Meta said it planned to follow suit. The amazing thing is the uncertainty that the SMR manufacturers will be able to deliver as quickly and as affordably as the tech giants demand. The simple reason? They have no track record yet. But energy demand is so high that waiting is not an option.

In the last few weeks, what was already a fast train picked up even more speed. On October 16 the U.S. Army unveiled its next-generation nuclear power Janus Program for the deployment of small modular reactors to support national defense installations and critical missions. Commercial microreactor manufacturers will partner with the Army’s Defense Innovation Unit with a goal of an operating reactor by September 30, 2028.

On October 26, Hyundai Engineering & Construction announced a basic design contract with Fermi America to construct four large nuclear reactors on a 8.1-square-mile property outside Amarillo, Texas. The Hyundai-designed AP1000 nuclear reactors will generate 4 GW for the HyperGrid complex, the world’s largest integrated energy and AI campus. The 11-GW project also includes 2 GW from small modular reactors, 4 GW from gas combined cycle plants, and 1 GW from solar and battery storage systems.

The integrated license application for the $500 billion project, the brainchild of former Energy Secretary Rick Perry and Fermi co-founder Toby Neugebauer, is currently under expedited review by the NRC. Meanwhile, Hyundai E&C is working on design tasks and preparations for the main construction phase, with finalization anticipated for an engineering, procurement, and construction (EPC) contract by spring 2026.

On October 28, Westinghouse Electric Co. joined Cameco Corporation and Brookfield Asset Management in a new strategic partnership with the U.S. government to accelerate the deployment of nuclear power. The government has committed to construction of at least $80 billion of new reactors using Westinghouse’s nuclear reactor technology to reinvigorate the U.S. nuclear power industrial base.

The government says this partnership will facilitate the growth and future of the U.S. nuclear power industry and the supporting supply chain. The entire project, which will deploy two-unit Westinghouse AP1000 reactors, is expected to create more than 100,000 construction jobs and support or sustain 45,000 manufacturing and engineering jobs across 43 states.

The AP300 SMR is a single-loop, 300-MWe pressurized water reactor that utilizes identical systems to the larger AP1000 reactor.

These are only a sampling of the active and planned contracts for nuclear power plant construction that have sprung out of the unplowed ground with the change in philosophy at the NRC and the White House. All systems are brightly lit green – but obstacles remain in the road.

Even with greatly shortened licensing timeframes, it will take time to complete site designs, obtain permits and licenses, and begin delivering much needed electricity to tech giants and other customers. Yet the biggest problem may be finding enough nuclear fuel at affordable prices to meet the mushrooming demand.

One option, says Curio CEO Ed McGinnis, is recognizing that spent nuclear fuel (including that from nuclear weapons) can safely be turned into fresh usable nuclear fuel and valuable rare metals and materials (like rhodium, palladium, krypton-85, and americium-241).

The Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) recent research and development in the advanced reactor technology space. Source: DOE

U.S. production of uranium oxide in 2024 jumped exponentially to 677,000 pounds from just 50,000 pounds in 2023, and exploration and development activities in 2023 were the highest in a decade. On a down note, anti-nuclear activists have been waging a campaign to shut down the White Mesa Mill in Utah that processes uranium ore – and in the U.S. today only about 5% of nuclear fuel has been processed domestically.

The nuclear fuel conundrum is but one of the obstacles in the path of the massive U.S. nuclear power industry growth that is also a vital component of the growth of AI data centers and other emerging electricity-hungry technologies that are shaping our future. But all systems are go – and that is the giant step that had to be taken first.

Placing Melissa in History

Climatic media has fallen in love with Melissa, many of them blaming “climate change”, i.e. CO2 for her strength and destructive power.  No surprise that Imperial College London (who foisted its covid pandemic models upon us) reports that its IRIS model confirms a “rapid attribution” claim.  No doubt there will be more such yada yada at Belem COP to stir up the faithful.

For the rest of us, let’s remember the saying attributed to George Santayana: “Those who cannot remember the past are condemned to repeat it.”  For example, Melissa belongs to a class of stong Atlantic hurricanes going back almost a century.  Here’s a table of them along with peak sustained winds and the CO2 levels at the time.

Peak Wind CO2 Level
Hurricane Year mph ppm
“Cuba” 1932 175 308
“Labor Day” 1935 185 310
Janet 1955 175 314
Camille 1969 175 325
Anita 1977 175 334
David 1979 175 337
Allen 1980 190 339
Gilbert 1988 185 352
Andrew 1992 175 356
Mitch 1998 180 367
Wilma 2005 185 380
Rita 2005 180 380
Katrina 2005 175 380
Dean 2007 175 384
Felix 2007 175 384
Irma 2017 180 407
Maria 2017 175 407
Dorian 2019 185 411
Milton 2024 180 425
Melissa 2025 185 428

Note that all twenty hurricanes had winds ranging between 175 to 190 mph, going back to 1932.  Meanwhile CO2 has increased from 308 ppm to 428 (2025 ytd).  Note also the absence of such storms in the decade 2007 to 2017 despite CO2 adding 23 ppm in that period. The correlation between high wind speeds and CO2 concentrations is an insignificant 0.18.

Then there is the Global Accumulated Cyclone Energy (ACE) report that includes the effects of both minor and major storms, combining strength and frequency.

I added an overlay of CO2 to illustrate how unlikely is a link between CO2 and storms.  Finally from Roger Pielke Jr. a chart showing ACE strength per hurricane:

The charts show that 16 is the average ACE per hurricane, in North Atlantic since 1900 and Globally since 1980.  The trend is not upward, and in North Atlantic appears currently lower than the past.

See Also:

Devious Climate Attribution Studies

 

Solid Arctic Ice Recovery October 2025

The animation shows the rapid growth of Arctic ice extent during October 2025, from day 274 to day 304, yesterday.  For all of the fuss over the September minimum, little is said about Arctic ice growing 3M km2, that’s 3 Wadhams in one month!.  Look on the left (Russian side) at the complete closing of the Northern Sea Route for shipping.

The graph below shows 2025 compared to the 19 year average (2006 to 2024 inclusive), to SII (Sea Ice Index) and some notable years.

This year October added 2.6M km2 from end of September compared to an average October increase of 3.4M km2.  The first two weeks were above average, before the refreezing rate slowed down ending in a deficit of ~0.5M km2.  In other terms the end of October ice extents were four days behind the average, according to MASIE.  SII started the same, but tracked lower in the second half of October.

The table below shows the distribution of ice in the Arctic Ocean basins.

Region 2025304 Day 304 Ave. 2025-Ave. 2007304 2025-2007
 (0) Northern_Hemisphere 7867621 8401977 -534356 8175072 -307451
 (1) Beaufort_Sea 975681 937777 37904 1038126 -62444
 (2) Chukchi_Sea 683493 466318 217175 242685 440809
 (3) East_Siberian_Sea 1087032 952325 134707 835071 251961
 (4) Laptev_Sea 849204 848501 703 887789 -38585
 (5) Kara_Sea 137515 478870 -341355 311960 -174445
 (6) Barents_Sea 1466 81088 -79621 52823 -51356
 (7) Greenland_Sea 351374 418343 -66969 443559 -92184
 (8) Baffin_Bay_Gulf_of_St._Lawrence 128777 247258 -118481 289374 -160596
 (9) Canadian_Archipelago 568663 740190 -171526 817220 -248557
 (10) Hudson_Bay 8609 66501 -57892 48845 -40236
 (11) Central_Arctic 3051977 3153485 -101508 3206345.33 -154368

Overall ice extent was 534k km2 below average or 6%.  Surpluses appear on the Eurasian shelf seas of Beaufort, Chukchi and East Siberian, while sizeable deficits are shown elsewhere on the Atlantic side, especially Kara, Baffin Bay, Canadian Archipelago and Central Arctic.

Illustration by Eleanor Lutz shows Earth’s seasonal climate changes. If played in full screen, the four corners present views from top, bottom and sides. It is a visual representation of scientific datasets measuring ice and snow extents.

 

 

With Wind and Solar More Is Less

At their Energy Bad Boys website Mitch Rolling and Isaac Orr published More is Less with Wind and Solar.  Excerpts in italics with my bolds and added images.

Capacity Values of Wind and Solar Plummet as Penetration Increases

With all the talk about needing to dramatically increase power supplies to meet the growing demand from data centers, as well as for anticipated electric vehicle adoption and other electrification efforts, it’s time to highlight one glaring reality of filling that demand with wind and solarthe reality of diminishing returns.

As in: the more intermittent capacity you add, the less capacity value you get from it. When it comes to wind and solar, more is less.

How it Works

Electric grids and utilities across the country assign reliability ratings to wind and solar resources—called capacity values—and these values diminish to almost zero as the system adds more wind and solar.

This reality is lost on—or intentionally obfuscated by—many wind and solar advocates who like to brag about current high capacity values for wind and solar without mentioning the fact that these values plummet as you add more wind and solar to the grid.

What Are Capacity Values?

The term “capacity value” is defined by the National Renewable Energy Laboratory (NREL) as “the contribution of a power plant to reliably meeting demand. Capacity value is the contribution that a plant makes toward the planning reserve margin…”

Basically, capacity values are percentages of total installed capacity for each energy source that electric grids believe they can reliably count on to meet demand. It reflects the idea that while every energy source has a maximum capacity that it can reach under ideal conditions, not every energy source can reliably perform at these ratings at any given time and when needed.

Limitations of current capacity value methods

Current methodologies for calculating wind and solar capacity values have several limitations that need to be considered when referencing them as reliability metrics.

The first limitation is that they are dependent on existing resources already on the grid. This means that if the generation makeup of the grid changes dramatically, as is happening on power systems across the country, this will have a significant negative impact on the capacity values of wind and solar.

Furthermore, they are also dependent on current load profiles, which are also anticipated to change in major ways with the emergence of data center load growth.

Finally, many capacity values are based on average performance, and not during the highest stress hours for maintaining system reliability, such as peak demand or net peak demand (demand minus wind and solar generation). As a result, capacity values may not assess the reliability of wind and solar when they are needed most, which can lead to an overreliance on them for meeting peak and net peak demand.

Wind and solar capacity values plummet as the system adds more

Now that the basics are out of the way, let’s discuss the reality that many wind and solar advocates avoid: that every megawatt of wind and solar added to the system is less reliable than the one before it.

Wind and solar capacity values fall as more of these resources are added to the grid because their output patterns are often correlated—the sun sets over an entire continent or concentrated wind turbines experience a wind droughtand they are non-dispatchable. As a result, adding more of the same variable resource reaches a point where the resource does not meaningfully contribute to reliability.

Referring back to the methods above, this means that the more wind and solar you add, the less the load can increase on the system or the less perfect capacity can be removed, thus increasing the denominator of the equation at a higher rate than the numerator.

This is reflected by diminishing capacity values for wind and solar in several major regional transmission operators (RTOs) in the country, which we detail below.

Map of Diminishing Capacity Values for Major RTOs

For a summary comparison, the map above shows the current capacity values of wind and solar in major RTOs across the country and how they are all expected to decline in the future as more are added to the system.

Midcontinent Independent System Operator (MISO)

In almost every season for wind and solar capacity values plummet and reach as low as .4 percent for solar in winter and 8.6 percent for wind in fall by 2043. The one exception to this is wind in the summer months, which actually increases from 8 percent in 2025/26 to 11.5 percent in 2030 before falling again to 8.9 percent by 2043. Still not a great reliability rating compared to coal, gas, hydro, and nuclear, which range from 64 percent to 95 percent in every single season.

In its 2024 Regional Resource Assessment, MISO explains that even though wind and solar will make up the vast majority of installed capacity in the future, reliable/accredited capacity will still be made up of primarily thermal resources.

Pennsylvania-New Jersey-Maryland (PJM)

PJM shows a similar story. While onshore wind and offshore wind begin at 41 percent and 68 percent, respectively, in the 2027/28 planning year, these resources drop to 19 percent and 26 percent by 2035/36.  Solar already starts at a low capacity value, dropping from 7—9 percent in 2027/28 to 6—7 percent by 2035/36. PJM explains:

-The ratings for the two solar classes remain stable at low values during the entire period due to the high level of winter risk

-The ratings for the two wind classes decrease significantly due to a gradual shift in winter historical performance patterns driving the winter risk in the model (as shown in the above tables)

Electric Reliability Council of Texas (ERCOT)

ERCOT shows a similar effect as more wind and solar are added to the system, as the same trend can be seen in the following charts.  As you can see, as more solar is added to the grid, the ELCCs drop to the 0—2 percent range, even with significant amounts of wind capacity on the grid.  Similarly, as more wind is added to the ERCOT system, wind ELCCs drop into the 5—10 percent range.

We hear a lot about the complementary nature of wind and solar generation in ERCOT. While this is true to some extent, these results show that even this has its limits when relying on large amounts of wind and solar capacity for meeting demand because complementary generation won’t always be the case, and there will be times when both resources perform poorly at the same time.

Southwest Power Pool (SPP)

For Southwest Power Pool, solar values are fairly high at the moment, ranging from 55 percent to 74 percent, because it has very few solar resources on the grid, while wind is much lower, ranging from 19 percent to 26 percent, because it is already saturated with wind resources.

Conclusion

The trend is simple enough to catch—the more wind and solar are added, the less valuable every additional MW becomes to the grid. The New York ISO (NYISO) makes the case clear in its 2023-2042 System & Resource Outlook report:

One complex challenge that needs to be considered beyond 2040 is the relative ineffectiveness of new solar and wind resources to contribute during periods of reliability risk after a significant amount of capacity has been built.

This is an important reality to remember when wind and solar advocates try to present intermittent resources as reliable energy sources that are able to meet the power demand needs of the future.

The fact is that not only are wind and solar already intermittent and unreliable,
but they have diminishing returns as you add more of them.

As usual, we end with the recommendation of not only keeping our existing thermal fleet in operation for as long as possible, because they are often the most affordable and reliable power plants on the system, but also bringing back recently retired facilities and building new ones on top of it.

Bill Gates Returns to Energy Pragmatism

Alex Epstein reports regarding Bill Gates latest statement downplaying climate doomsterism, and reminds us that he hasn’t changed his mind so much as he is now able to speak freely.  For example, watch this short video of Bill Gates in 2019.

Alex Epstein posted his conversation with Fox News Will Cain: Why Bill Gates is finally rejecting climate catastrophism.  Excerpts in italics with his bolds and my added images.

Will Cain:

Joining us now to continue this conversation is the founder of Center for Industrial Progress, it’s Alex Epstein. Alex, great to see you here today.

I think that, first of all, we should celebrate that Bill Gates has seen the light, has now understood the truth, but that does lead to the question: Why?

Alex Epstein:

It’s a good question, and actually I don’t think Bill’s views have changed much.

I think he’s held the view that he’s saying now, and I think he’s even less of a climate catastrophist and anti-fossil fuel person than he’s letting on now. I think what’s changed—and this is good news—is the cultural, economic, and political environment.

And in particular what we see are, one, the rise of AI and people recognizing that you’re going to need more fossil fuels to provide the reliable electricity—key: reliable electricity—that AI requires.

Number two, you’ve got a government right now that is pro-fossil fuel and very anti-climate catastrophist.

And number three, to the extent I and some others can take credit, I think we’ve advanced the pro-fossil fuel argument that shows that, hey, we do have impact on climate, but the net effect of fossil fuel use is incredibly positive, including on the livability of climate, or safety from climate.

I think those three factors have created an environment where Bill Gates—who I admire in many ways, but is a very calculating guy—where he feels like it’s in his interest to tell more of the truth about this issue than he has in recent years.

Will Cain:

All right, let’s take your three potential explanations for the change of heart for Bill Gates.

Let’s set aside your personal advocacy and persuasion, which I find compelling. And it’s not just you alone, Alex. It’s really most of the thoughtful scientists and thinkers through the last several hundred years have understood the power of fossil fuels and economic growth in helping the vast majority of people across the world.

Maybe that finally broke through to Bill Gates. Maybe he just sees the writing on the wall and understands what’s happening in modern America under President Donald Trump.

But the first is quite interesting: AI and the rise of AI. Does Gates not have significant investment in AI?

Alex Epstein:

Well, he obviously has investments. I mean, every major tech company is taking into account AI, I think validly, whether their current investment level is right or not. It’s key to their future.

But it’s not even that it’s just of interest to his company, although that’s surely a factor. He thinks it’s a big interest to humanity.

But most importantly, all these things, it’s more okay to talk about it. We already knew that the world needed way more energy, but now it’s okay to talk about it.

That’s why all these tech companies who made net zero pledges are suddenly saying, “No, we don’t need net zero”. Nothing changed really in the information environment, but the cultural environment did change.

Will Cain:

Well, I guess I’m just a little skeptical on the sincerity today and yesterday, and when I notice he can mingle his own personal net worth and benefit with that of what is best for humanity.

And if he convinces himself that AI is what’s best for humanity, and AI needs energy to grow, and therefore AI needs fossil fuels, he can convince himself that using fossil fuels is what’s best for humanity. And I think that is a little more in line with what I would suspect to be the motivation of Bill Gates.

Alex Epstein:

It’s definitely true with the broader tech industry. Again, they made “net zero” commitments just a few years ago when Biden was president, when everyone was on to ESG, and then suddenly their views changed and they never really acknowledged it.

Now I’m grateful, guys. Welcome to the party. I’m glad Zuckerberg is here. I’m glad Bezos is here. I’m glad Gates is here. These are people I admire a lot in many ways. I’m glad they’re changing their views.

But maybe stick to the truth this time instead of being so opportunistic and not really explaining how one day you’re “net zero” and then when it conflicts with your business interests, then you’re suddenly, “hey, yeah, let’s use more fossil fuels, we need it for AI”.

I thought you were worried about a climate catastrophe. It turns out there was never a climate catastrophe.

Will Cain:

I’m glad they’re here too, Alex. I just wouldn’t issue them permanent membership yet in the Club of Truth. Alex Epstein, it’s great to have you here on the show today.

See Also:

Energy Realism Marching Ahead

The Reality

Energy sources are additive and symbiotic. Coal, oil, gas, wood, nuclear
and renewables all grew together, they didn’t replace each other.

The Fantasy