Archives par mot-clé : Wrong Prediction(s)?

Earth Day At 52: None of the eco-doomsday predictions have come true

by NetZeroWatch, Apr 22, 2023

From predicting ecological collapse and the end of civilization to warnings that the world is running out of oil, all environmental doomsday predictions of the first Earth Day in 1970 have turned out to be flat out wrong.

More than three decades before Greta Thunberg was born — the Swedish environmental activist on climate change — more than 20 million Americans participated in the first Earth Day on April 22, 1970.

We now look back at quotes from Earth Day, Then and Now,” by Ronald Bailey of the spectacularly wrong apocalyptic predictions from Earth Day 1970.

Considering the current doomsday predictions scaremonger activists are verbalizing about global warming that will result in the demise of civilization within the next decade, many of those unscientific 1970 predictions are being reincarnated on today’s social and news media outlets.

Many of the same are being regurgitated today, but the best prediction from the first earth day five decades ago, yes 50 years ago, was that the “the pending ice age as earth had been cooling since 1950 and that the temperature would be 11 degrees cooler by the year 2000”.

The 1970’s were a lousy decade. Embarrassing movies and dreadful music reflected the national doomsday mood following an unpopular war, endless political scandals, and a faltering economy.

The first Earth Day was celebrated in 1970 — okay, “celebrated” doesn’t capture the funereal tone of the event. The events (organized in part by then hippie and now convicted murderer Ira Einhorn) predicted death, destruction and disease unless we did exactly as progressives

NOAA Study: Atmosphere Warming At Half The Rate Predicted By Climate Models

by R. MCKitrick, Apr 13, 2023 in ClimateChangeDispatch

An important new study on climate change came out recently. I’m not talking about the Intergovernmental Panel on Climate Change (IPCC) Synthesis Report with its nonsensical headline, “Urgent climate action can secure a liveable future for all.”

No, that’s just meaningless sloganeering proving yet again how far the IPCC has departed from its original mission of providing objective scientific assessments. [emphasis, links added]

I’m referring instead to a new paper in the Journal of Geophysical Research-Atmospheres by a group of scientists at the U.S. National Oceanic and Atmospheric Administration (NOAA) headed by Cheng-Zhi Zou, which presents a new satellite-derived temperature record for the global troposphere (the atmospheric layer from one kilometer up to about 10 km altitude).

The troposphere climate record has been heavily debated for two reasons. First, it’s where climate models say the effect of warming due to greenhouse gases (GHGs) will be the strongest, especially in the mid-troposphere.

And since that layer is not affected by urbanization or other changes to the land surface, it’s a good place to observe a clean signal of the effect of GHGs.

Since the 1990s the records from both weather satellites and weather balloons have shown that climate models predict too much warming.

In a 2020 paper, John Christy of the University of Alabama-Huntsville (UAH) and I examined the outputs of the 38 newest climate models and compared their global tropospheric warming rates from 1979 to 2014 against observations from satellites and weather balloons.

All 38 exhibited too much warming, and in most cases, the differences were statistically significant. We argued that this points to a structural error in climate models where they respond too strongly to GHGs.

But, and this is the second point of controversy, there have also been challenges to the observational record.

Climate Doomsayers Are Always Wrong — But Cling To Their Anti-Human Faith

by D. MCCarthy, Mar 28, 2023 in ClilmateChangeDispatch

What does it take to avert the end of the world?

For most of human history, this has been a question for religion. And the answer has usually been that human beings must repent of their sins.

They must surrender some comfort and luxury to appease angry gods. In primitive times, worshippers might sacrifice a bull — or even a human being. [emphasis, links added]

Today climate science provides an end-times prophecy that works in much the same way as the religious apocalypticism of old.

Religion enchants the world, lending spiritual significance to every part of life. Climate change makes everything from charging your iPhone to skipping beef for dinner a potentially salvific act.

Cattle once again have to be sacrificed — they emit too much methane and CO2.

And the dietary laws that climate science prescribes are as exacting as those of any religion. Every day is a fast day when you subsist on tofu and insect protein.

Purity and ritual cleanliness are religious concepts that find a remarkable parallel in the way of life that climate science promotes.

By default, Apple’s phones are now set to “clean energy charging” mode, which takes longer to recharge the battery but contributes in however small a way to saving us from the weather.

Well-educated liberals laugh when a televangelist claims a hurricane is God’s punishment for America’s acceptance of homosexuality.

Yet liberals also believe the weather is a moral force, punishing Americans for the sins of capitalism.

Inventing The Apocalypse: Climate Doomsday Predictions Haven’t Aged Well

by B. Adams, Mar 27, 2023 in ClimateChangeDispatch





Climate scientists and alarmists have prophesied the planet’s imminent demise nearly every year now dating back to at least the end of the Second World War.

“We don’t have 12 years to save the climate. We have 14 months,” the now-defunct ThinkProgress predicted 43 months ago.

Former French prime minister Laurent Fabius warned 3,239 days ago that the international community had only “500 days to avoid climate chaos.

Earlier, in 2009, Gordon Brown, the U.K.’s prime minister at the time, said we had “fewer than fifty days to save our planet from catastrophe.

Also in 2009, former vice president Al Gore declared that “there is a 75% chance that the entire north polar ice cap, during some of the summer months, could be completely ice-free within the next five to seven years.

In 2013, mid-melt, the Guardian ran the following headline: “US Navy predicts summer ice-free Arctic by 2016.

The ice is still there.

NASA Scientist: We’re Toast,” reads the headline of an Associated Press report from 2008.

In 2007, the IPCC predicted the Himalayan glaciers would disappear by 2035. The U.N.’s chief climate science body retracted the claim in 2010, explaining the prediction wasn’t based on any peer-reviewed data, but on a media interview with a scientist conducted in 1999.

In 2006, Gore claimed that unless world leaders took “drastic measures” to reduce greenhouse-gas emissions, Earth would surpass the “point of no return” in ten years — a “true planetary emergency,” he called it.

The year 2016 came and went, and now we’re being told the early 2030s are the real point of no return.

The Guardian, citing a “secret report,” warned in 2004 that “major European cities will be sunk beneath rising seas as Britain is plunged into a ‘Siberian’ climate by 2020.

The year 2022 was the U.K.’s warmest since they started keeping records in 1884. The heat was, of course, blamed on climate change.

The 1.5 C Temperature Fiction, Already Exceeded

by J. Marohasy, Mar 21, 2023 in WUWT

From Jennifer Marohasy’s blog

March 21, 2023 By jennifer

It is all over the news, another climate change report from the IPCC – the United Nation’s Intergovernmental Panel on Climate Change. Of course, it tells us that the end is nigh unless we do something to prevent temperatures exceeding 1.5 degrees Celsius. Meanwhile, not one of the contributors has any proven capacity to accurately forecast the weather more than a few days in advance, nor much of an idea of the quality of the temperature data inputted into the simulation models claiming the Earth is burning up. Yet they claim to be able to forecast temperatures years in advance and repeat over and over the value of 1.5 C as representing a tipping point.

The reality is that annual maximum temperatures across Australia were mostly falling, and by much more than 1.5 C, from at least 1910 to 1960 and then increasing, and by more than 1.5 C, since 1960.

There are few locations across Australia where temperatures have been recorded at the one place and using standard equipment (including in a Stevenson screen with a mercury thermometer) much before 1908. Darwin in the Northern Territory and Richmond in Queensland are special because they have long and relatively reliable temperature records. Making a single adjustment to the Darwin temperature record to correct for the move from the post office to the airport (after the post office was bombed in WW II), it is evident from the chart that both temperature series show cooling and then warming over the last century and by much more than 1.5 C over periods of less than a decade.

Claim: A Majority of Voters believe Climate Change is a False Religion

by E. Worrall, Mar 15, 2023 in WUWT

But just maybe the tide is turning.

A lot of things have been going wrong for wind and solar fanatics lately. Biden, arguably the President with the greatest record of subsidizing unreliable wind and solar in America’s history, had his chance to bring down energy prices with his solar panels and wind turbines. Instead, he delivered the spectacle of the US Secretary of State crawling to the Saudis, begging for access to their oil, oil which could have been delivered by the Keystone Pipeline and other petroleum projects the Biden administration sabotaged.

In Britain and Germany – energy prices. Chancellor Olaf Scholz of Germany has implausibly promised an energy miracle, but Britain and Europe have already waited a long time for the promised reward for all the hardship they have endured and the trillion Pounds and Euros spent over the last few decades.

The measures Britain and Germany have taken to avert catastrophe in the face of Russian gas supply disruption, and the utter failure of  the climate alarmist’s energy programmes to deliver, are beyond embarrassing. Germany is bulldozing villagesold growth forests, even a wind farm to dig up coal to avoid further deindustrialization caused by their maniacal reliance on intermittent wind and solar. Britain deferred decommissioning her decrepit coal plants. Just as well, Britain needed those coal plants again just last week.

In Australia, Prime Minister Albanese, who won on the promise of a substantial drop in energy prices, well that promise is now looking pretty shaky. Household energy prices are set to rise 20%, 30% next year?Who knows. What we do know, is it will be a lot – and the dirt cheap coal power which bring down prices is scheduled to be shut down.

With the promises of the climate religion wearing thin, and climate concern faltering in the face of mortgage stress and soaring energy bills, perhaps this Rasmussen poll is what it appears to be – an early indication of a sea change in public opinion concerning climate change and climate action.

Science Yields Surprises! Island Nations Growing… “Atoll, Island Stability Is Global Trend”!

by P. Gosselin, Mar 8, 2023 in WUWT

IPCC high-end sea level predictions for 2100 are “highly erroneous”. 

Global warming alarmists like to claim that Pacific island nations are on the verge of disappearing – due to rising sea levels caused by polar ice melting due to global warming, which in turn supposedly is caused by rising concentrations of “heat-trapping” trace gas CO2 from the burning of fossil fuels.

These coral reef island nations risk going under real soon, unless we wean ourselves from fossil fuels soon, they say.

Coral reef island nations are emerging, not disappearing

But yesterday Kenneth here presented a new paper appearing in Nature, (Kench et al., 2023), which looks at whether the coral reef islands are in fact seeing unprecedented and undergoing accelerating physical changes that risk outrunning human adaptation measures. The authors analyzed the dynamics of a Maldivian reef island at millennial to decadal timescales.

Recent changes not unprecedented

The researchers found that “island change over the past half-century (±40 m movement) is not unprecedented compared with paleo-dynamic evidence”.

Nothing unusual is happening. The global data suggest that almost all islands are in fact growing, and not  disappearing under water like climate alarmists mistakenly believe.

“Recent shoreline changes (±40 m/50 years) are ‘dwarfed’ by the shoreline changes (±200 m/100 years) that occurred throughout previous centuries,” the study’s authors write.

 89% of all the globe’s islands are stable, or growing!

Moreover, just 4 years ago, another peer-reviewed publication appearing in a renowned journal found similar results: 89% of the globe’s islands and 100% of large islands have stable or growing coasts! According to Duvat, 2019:

“88.6% of islands were either stable or increased in area, while only 11.4% contracted. It is noteworthy that no island larger than 10 ha decreased in size. These results show that atoll and island areal stability is a global trend, whatever the rate of sea-level rise.”

Moreover, Khan et al (2018) found: “Prediction of 4–6.6 ft sea level rise in the next 91 years between 2009 and 2100 is highly erroneous.”

Hurricanes Are Getting Stronger (But Only In Computer Models!)

by P. Homewood, March 1, 2023 in NotaLotofPeopleKnowThat

The new study uses computer models to assess Atlantic storms going back to 1949, and to peer into the future to see what storms will look like in 2100. The authors, climate scientists at Princeton University, found that the flood and wind risk posed by storms has steadily increased.

The problem will only get worse in the coming decades. “The frequency of intense storms will increase,” explains Ning Lin, a climate scientist at Princeton University and the lead author of the new study.



Paul Ehrlich And The Madness Of Climate Alarmists

by J.  Woudhuysen, Jan 12, 2023 in ClimateChangeDispatch

All forecasters make mistakes. But few forecasters have been as consistently wrong as biologist Paul Ehrlich.

So it was quite surprising to see, on January 1, the once venerable CBS series, 60 Minutes, inviting Ehrlich on the show to give his take on the state of the planet.

Focussing on ‘the vanishing wild’, the interview was essentially a forecast of doom, with Ehrlich warning that Earth is in the midst of a ‘sixth mass extinction’ and that its wildlife is ‘running out of places to live’. [emphasis, links added]

Ehrlich, a Stanford University entomologist, is most infamous for his 1968 doom-mongering tome, The Population Bomb.

In the tradition of Thomas Malthus, the prologue begins with the following warning:

‘The battle to feed all of humanity is over. In the 1970s and 1980s, hundreds of millions of people will starve to death in spite of any crash programs embarked upon now. At this late date, nothing can prevent a substantial increase in the world death rate.’

In reality, since The Population Bomb was published, rates of starvation have fallen off a cliff, while the world’s population has doubled.

Ronald Bailey, the science correspondent at Reason magazine, notes that the global crude death rate (deaths per 1,000 people) fell ‘from 12.5 in 1968 to seven in 2019, before ticking up to eight in the pandemic year of 2020’.

Ehrlich has been prolific in promoting mistaken forecasts. With Richard L Harriman, he also wrote How To Be a Survivor: A Plan to Save Spaceship Earth (1971).

Then, with his wife Anne, he issued more lurid warnings in books including Extinction: The Causes and Consequences of the Disappearance of Species (1981) and The Population Explosion (1991).

New Study: Observational Data Affirm 95% Of Post-1970s Warming Is Not Linked To CO2 Increases

by K. Richard, Dec 8, 2022 in NoTricksZone

Of the warming trends in Poland and greater Europe, “only about 4–5% are explained by an increase in CO2 concentration.”  –  Marsz et al., 2022 

Internal changes to the thermal structure of the ocean transmit decadal-scale changes in the atmospheric circulation and consequent surface air temperature via its modulating impact on the variation in the amount and intensity of solar radiation (sunshine duration, or SD) reaching the Earth’s surface.

This is not only observed for Poland and/or Europe as detailed in a new study, but the causal structuring of cloud cover changes driving the variations in solar radiation reaching the surface and modulating climate can be applied throughout the globe ( Wang et al., 2002, Wielicki et al., 2002Loeb et al., 2021, Herman et al., 2013Poprovsky, 2019, Dübal and Vahrenholt, 2021, Swift, 2018, Stephens et al., 2022).

Therefore, “the main cause of the change in the state of the climate may be the action of the internal variability of the ocean–atmosphere system” (Marsz et al., 2022).

MIT Climate Scientist Dr. Richard Lindzen Rejects ‘Climate Change’ As ‘A Quasi-Religious Movement Predicated on An Absurd ‘Scientific’ Narrative’

by R. Lindzen, Dec 5, 2022 in WUWT

Dr. Richard Lindzen’s new paper: An Assessment of the Conventional Global Warming Narrative – Published by the Global Warming Policy Foundation – September 22, 2022: Climate change is “a quasi-religious movement predicated on an absurd ‘scientific’ narrative. The policies invoked on behalf of this movement have led to the US hobbling its energy system.” – “The Earth’s climate has, indeed, undergone major variations, but these offer no evidence of a causal role for CO₂.”

“Unless we wake up to the absurdity of the motivating narrative, this is likely only to be the beginning of the disasters that will follow from the current irrational demonization of CO₂.”

By: Admin – Climate Depot

Click to access 2022-09-22-Lindzen-global-warming-narrative.pdf


CO₂ is a particularly ridiculous choice for a ‘pollutant.’ Its primary role is as a fertiliser for plant life. Currently, almost all plants are starved of CO₂. Moreover, if we were to remove a bit more than 60% of current CO₂, the consequences would be dire: namely death by starvation for all animal life. It would not likely lead to a particularly cold world since such a reduction would only amount to a couple of percent change in the radiative budget. After all, a 30% reduction of solar radiation about 2.5 billion years ago did not lead to an Earth much colder than it is today, as we earlier noted in connection with the Early Faint Sun Paradox.

The Earth’s climate has, indeed, undergone major variations, but these offer no evidence of a causal role for CO₂. For the glaciation cycles of the past 700 thousand years, the proxy data from the Vostok ice cores shows that cooling precedes decreases in CO₂ despite the very coarse temporal resolution (Jouzel et al.,1987, Gore, 2006). Higher temporal resolution is needed to show that warming preceded the increase in CO₂ as well (Caillon et al, 2003). For earlier variations, there is no suggestion of any correlation with carbon dioxide at all, as shown in Figure 9a, a commonly presented reconstruction of CO₂ levels and ‘temperature’ for the past 600 million years or so.

The Top FIVE Climate Change LIES

by L. Fox, Nov 28, 2022 in ClimateChangeDispatch

Laurence Fox breaks apart the lies repeatedly fed to the public and details the manipulation by the billionaire-funded lobby groups and activists.

If you’re skeptical about climate change or the impact of the environment on our planet, this video is for you.

Climate Lie Number One: Wind Power Is NINE Times CHEAPER Than Gas

Climate Lie Number Two: Island Countries Are SINKING Into The Sea

Climate Lie Number Three: Net Zero WILL Make YOUR Bills Cheaper

Climate Lie Number Four: Storms Are Getting MORE Frequent And MORE Intense

Climate Lie Number Five: Climate Change Is KILLING People


New Study Finds Australian Sea Temperatures Multiple Degrees Warmer Than Today During The Last Glacial

by K. Richard, Nov 17, 2022 in NoTricksZone

Sea temperatures in regions near Australia have failed to cooperate with a CO2-driven climate narrative.

Glacial conditions and ~200 ppm CO2 levels were thought to have prevailed throughout most of the last 60,000 years across the Earth.

But a new study finds sea temperatures near Australia were “3 to 5°C warmer than the modern average temperature” during several millennia of this period.

Proxy evidence suggests average subsurface water temperatures in the Southern Ocean/Australia region may have been “>7°C warmer than modern” during the last 10,000 years (the Holocene).

The eastern and western core graphical record indicates the amplitude of sea surface temperature swings reached 5 to 7°C from 30,000 to 60,000 years ago – a time when CO2 levels were thought to be stable and low (near 200 ppm).

These records once again affirm sea surface and subsurface temperature changes do not align with the narrative suggesting Earth’s climate changes are driven by fluctuations in CO2 concentrations.

Climate models fail to capture strengthening wintertime North Atlantic jet and impacts on Europe

by Blackport P. & Fyfe, J.C., Nov 11, 2022 in ScienceAdvances


Projections of wintertime surface climate over Europe depend on reliable simulations of the North Atlantic atmospheric circulation from climate models. However, it is unclear whether these models capture the long-term observed trends in the North Atlantic circulation. Here, we show that over the period from 1951 to 2020, the wintertime North Atlantic jet has strengthened, while model trends are, on average, only very weakly positive. The observed strengthening is greater than in any one of the 303 simulations from 44 climate models considered in our study. This divergence between models and observations is now much more apparent because of a very strong jet observed over the past decade. The models similarly have difficulty capturing the observed precipitation trends over Europe. Our results suggest that projections of winter atmospheric circulation and associated precipitation over Europe may be unreliable because they fail to capture the response to human emissions or underestimate the magnitude of multidecadal-to-centennial time scale internal variability.

Glacier saga

by J. Curry, Nov 10, 2022 in ClimateEtc.

The loss of glaciers from Glacier National Park is one of the most visible manifestations of climate change in the U.S.  Signs were posted all around the park, proclaiming that the glaciers would be gone by 2020.  In 2017, the Park started taking these signs down.  What happened, beyond the obvious fact that the glaciers hadn’t disappeared by 2020?

Screen Shot 2022-11-10 at 11.31.49 AM

Not only are Montana’s glaciers an important icon for global warming (e.g. Al Gore’s Inconvenient Truth), it also seems that the glaciers are an important political icon for progressive politicians in Montana. Earlier this week, Reilly Neill, a (sort of) politician in Montana, went after me on Twitter:

How IPCC’s 1990 Predictions Expensively Failed

by C. Monckton of Brenchley, Nov 8, 2022 in WUWT

It is now almost a third of a century since 1990, when IPCC made its first predictions about the weather. Since IPCC (2021) continues to predict the same 3 C° midrange long-term warming (equilibrium doubled-CO2 sensitivity, or ECS, broadly equivalent to 20th-century anthropogenic warming from all sources) as in 1990, it is high time someone examined IPCC’s medium-term predictions to shed light on the plausibility of its long-term predictions.

IPCC’s key medium-term prediction in 1990 was as follows –

“Based on current model results, we predict:

  • “under the IPCC Business-as-Usual (Scenario A) emissions of greenhouse gases, a rate of increase of global mean temperature during the next century of about 0.3 C° per decade (with an uncertainty range of 0.2 C° to 0.5 C° per decade). This is greater than that seen over the past 10,000 years. This will result in a likely increase in global mean temperature of about 1 C° above the present value by 2025 and 3 C° before the end of the next century. The rise will not be steady because of the influence of other factors.”

IPCC also predicted as follows –

This second business-as-usual prediction was that there would be 1.8 C° warming from preindustrial times to 2030. Deducting the 0.45 C° warming up to 1990, the prediction amounted to 1.35 C° or about 0.34 C°/decade. Thus, IPCC predicted 0.3-0.34 C°/decade medium-term warming. However, only 0.14 C°/decade has occurred since 1990

Let’s Talk About Real Climate Cataclysms

by P. Driessen, Oct 26, 2022 in ClimateChangeDispatch

The climate crisis! Save our planet! Stop using fossil fuels! The ranting never ends.

Present data show that hurricane frequency and intensity are not increasing, and tornado activity has declined significantly since 1975.

Offer clear evidence of past, recurring major climate changes, including a widespread Little Ice Age from 1300 to 1850, a 2,400-year-old forest emerging from beneath a melting Alaskan glacier, a 5,200-year-old mummified traveler frozen on a once-nearly-ice-free Italian Alps trail – and they respond, Shut up! The climate crisis! The science is settled! Stop using fossil fuels! [bold, links added]

Fine. But take a few minutes to ponder REAL climate disasters: the Pleistocene Ice Ages.

And then ask Michael Mann, Al Gore, John Kerry, and the rest of the climate cataclysm cabal to explain exactly how carbon dioxide and a few other greenhouse gases caused those massive ice sheets to grow and melt, multiple times. Just CO2 and GHG, all by themselves. They can’t do it. The CO2-driven crisis is a fable.

Widespread glaciation began some 1,800,000 years ago in North America and Europe, and about 800,000 years earlier on other continents. There were at least four, possibly five, major glacial periods, interspersed with warm intervals (like the one we’re in now) during which the glaciers mostly melted.

That last glacial epoch is named the Wisconsinan because some of the most exemplary features are in my home state. It marks the furthest extent of glaciers southward into the United States and east and west across Canada.
Book: ‘The Deliberate Corruption of Climate Science’
Book: ‘Human Caused Global Warming, the Biggest Deception in History’

50-Year U.S. Summer Temperature Trends: ALL 36 Climate Models Are Too Warm

by Dr Roy Spencer, Oct 20, 2022 in GloablWarming

I’ll get right to the results, which are pretty straightforward.

As seen in the accompanying plot, 50-year (1973-2022) summer (June/July/August) temperature trends for the contiguous 48 U.S. states from 36 CMIP-6 climate model experiments average nearly twice the warming rate as observed by the NOAA climate division dataset.


The 36 models are those catalogued at the KNMI Climate Explorer website, using Tas (surface air temperature), one member per model, for the ssp245 radiative forcing scenario. (The website says there are 40 models, but I found that four of the models have double entries). The surface temperature observations come from NOAA/NCEI.

The official NOAA observations produce a 50-year summer temperature trend of +0.26 C/decade for the U.S., while the model trends range from +0.28 to +0.71 C/decade.

As a check on the observations, I took the 18 UTC daily measurements from 497 ASOS and AWOS stations in the Global Hourly Integrated Surface Database (mostly independent from the official homogenized NOAA data) and computed similar trends for each station separately. I then took the median of all reported trends from within each of the 48 states, and did a 48-state area-weighted temperature trend from those 48 median values, after which I also got +0.26 C/decade. (Note that this could be an overestimate if increasing urban heat island effects have spuriously influenced trends over the last 50 years, and I have not made any adjustment for that).

The importance of this finding should be obvious: Given that U.S. energy policy depends upon the predictions from these models, their tendency to produce too much warming (and likely also warming-associated climate change) should be factored into energy policy planning. I doubt that it is, given the climate change exaggerations routinely promoted by environment groups, anti-oil advocates, the media, politicians, and most government agencies

Satellite Temperature Data Show Almost All Climate Model Forecasts Over the Last 40 Years Were Wrong

by C. Morrison, Oct 8, 2022 in DailySceptic

A major survey into the accuracy of climate models has found that almost all the past temperature forecasts between 1980-2021 were excessive compared with accurate satellite measurements. The findings were recently published by Professor Nicola Scafetta, a physicist from the University of Naples. He attributes the inaccuracies to a limited understanding of Equilibrium Climate Sensitivity (ECS), the number of degrees centigrade the Earth’s temperature will rise with a doubling of carbon dioxide.

Scientists have spent decades trying to find an accurate ECS number, to no avail. Current estimates range from 0.5°C to around 6-7°C. Without knowing this vital figure, the so-called ‘settled’ science narrative around human-caused climate change remains a largely political invention, not a credible scientific proposition. Professor Scafetta has conducted extensive work into climate models and is a long-time critic of their results and forecasts. In a previous work, he said many of the climate models should be “dismissed and not used by policymakers”. Along with around 250 professors, he is a signatory to the World Climate Declaration which states there is no climate emergency and also notes climate models are “not remotely plausible as global tools”.

Scafetta’s latest work grouped 38 major climate models into low, medium and high ECS values, ranging between 1.8°C and 5.7°C. He found that models in the medium and high category “ran hot” in over 95% and 97% of cases respectively. The lower models were said to have done better when compared to global warming calculated for the period by the major surface datasets of 0.52-0.58°C. But the UAH satellite data showed warming up to 30% less during this period, suggesting even the low warming models produced “excessive warming” from 1980-2021.

According to Scafetta, these results are showed that the ECS figure could be as low as 1.2-2°C. Particular concern is expressed about surface temperature records that “appear to be severely affected by non-climatic warming biases”. Scafetta concludes that surface-based temperature records are likely to be affected by warming biases, such as the urban heat island effect due to expanding urban development, and subject to natural oscillations that are not reproduced by climate models. He concludes: “The global warming expected for the next few decades may be even more moderate than predicted by the low ECS-GCMs [Global Circulation Models], and could easily fall within a safe temperature range where climate adaptation policies will suffice.”


See also : Satellite Temperature Data Show Almost All Climate Model Forecasts Over the Last 40 Years Were Wrong

The Media Are Deliberately Lying About Climate Change And Hurricanes

by M. Schellenberg, Oct 4, 2022 in ClimateChangeDispatch

Over the last several weeks, many mainstream news media outlets have claimed that hurricanes are becoming more expensive, more frequent, and more intense because of climate change. [bold, links added]

• The Financial Timesreported that “hurricane frequency is on the rise.”

• The New York Timesclaimed, “strong storms are becoming more common in the Atlantic Ocean.”

• The Washington Postsaid, “climate change is rapidly fueling super hurricanes.”

• ABC Newsdeclared, “Here’s how climate change intensifies hurricanes.”

• Both the FT and NY Times showed graphs purporting to show rising hurricane frequency using data from the U.S. government’s National Oceanic and Atmospheric Administration (NOAA).

All those claims are false.

The increasing cost of hurricane damage can be explained entirely by more people and more property in harm’s way. Consider how much more developed Miami Beach is today compared to a century ago. Once you adjust for rising wealth, there is no trend of increasing damage.

Claims that hurricanes are becoming more frequent are similarly wrong.

“After adjusting for a likely undercount of hurricanes in the pre-satellite era,” writes NOAA, “there is essentially no long-term trend in hurricane counts. The evidence for an upward trend is even weaker if we look at U.S. landfalling hurricanes, which even show a slight negative trend beginning from 1900 or from the late 1800s.”

What’s more, NOAA expects a 25% decline in hurricane frequency in the future.

Weather Disasters Wrongly Linked To Global Warming By Two International Agencies

by P. Homewood, Oct 4, 2022 in NotaLotofPeopleKnowThat

Because the data is compiled from the same EM-DAT da­tabase, the annual number of deaths shows an uptick from the 1990s to the 2000s. It is clear though that disaster-related deaths from extreme weather have been falling since the 1920s and are now approaching zero. This is due as much to improved planning, more robust structures and early warning systems, as it is to diminishing numbers of natural disasters. And, as can be seen from the figure, it is earthquakes – entirely natural events – that have been the deadliest disasters over the last two decades.

Ignoring all the evidence, however, the press release accompanying the latest WMO report proclaims that “Climate science is clear: we are heading in the wrong direction,” the UN Secretary-General adding, with characteristic hype, that the report “shows climate impacts heading into uncharted territory of destruction.”

A more detailed discussion of the erroneous claims of both CRED and the WMO can be found in my two most recent reports on weather extremes (here and here).

48 Of 79 ‘Catastrophic Climate’ Predictions Have Failed; Other 31 Haven’t Expired Yetrd,

by K. Richard,  Apr 9, 2021 in ClimateChangeDispatch

A new peer-reviewed paper published in the International Journal of Global Warmingidentifies 79 “apocalyptic” predictions formulated since 1970 by “researchers and activists” who “predict cataclysmic events” resulting from “catastrophic climate change.”

Already 48 of these “truly apocalyptic forecasts” have failed. The other 31 are likely just as wrong, but the prediction end dates haven’t expired yet, as “the apocalypse is always about 20 years out.”

Rode and Fischbeck are “professors of Social & Decision Sciences and Engineering & Public Policy” at Carnegie Mellon University.

In a new paper and press release (surprisingly published in AAAS) they have effectively exposed a “string of repeated apocalyptic forecast failures” over the last 50 years made by such activists/scientists as Al Gore, Paul Ehrlich, and Tim Flannery.

Activists/scientists James Hansen and Michael Mann have catastrophic predictions set to expire in the 2030s, and the IPCC had a cataclysmic forecast already fail and 3 others that will expire in 2029 and 2050 (2).

The authors’ intention was to warn the climate science community about the cry-wolf dangers of repeatedly making “extreme climate forecasts” that, when they inevitably fail, “undermine the trust in the underlying science.”

It is highly likely that these warnings will be ignored, however, as “making sensational predictions of the doom of humanity, while scientifically dubious, has still proven tempting for those wishing to grab headlines.”

What Happened To The Ice-Free Arctic?

by P. Homewood, Sep 26, 202 in NotaLotofPeopleKnowThat

I wonder how these predictions worked out? (Answers tomorrow!!)

Scientists in the US have presented one of the most dramatic forecasts yet for the disappearance of Arctic sea ice.

Their latest modelling studies indicate northern polar waters could be ice-free in summers within just 5-6 years.

Professor Wieslaw Maslowski told an American Geophysical Union meeting that previous projections had underestimated the processes now driving ice loss.

Summer melting this year reduced the ice cover to 4.13 million sq km, the smallest ever extent in modern times.

Remarkably, this stunning low point was not even incorporated into the model runs of Professor Maslowski and his team, which used data sets from 1979 to 2004 to constrain their future projections. “Our projection of 2013 for the removal of ice in summer is not accounting for the last two minima, in 2005 and 2007,” the researcher from the Naval Postgraduate School, Monterey, California, explained to the BBC.

“So given that fact, you can argue that may be our projection of 2013 is already too conservative.”

.See also: The Ice Free Arctic – Part II

The Climate Scaremongers: The Great Arctic Sea Ice Scam

by P. Homewood, Sep 23, 2022 in ClimateChangeDispatch



For years the ‘experts’ have been telling us that the Arctic would soon be ice-free in summer.

Al Gore notoriously warned us in 2009 that ‘there is a 75 percent chance that the entire north polar ice cap, during the summer months, could be completely ice-free within five to seven years.’

He was, of course, just a politician. But a whole host of supposed Arctic scientists were all busy issuing similar warnings at the time. [bold, links added]

In 2007, for instance, Professor Wieslaw Maslowski told us that northern polar waters could be ice-free in summers within just five to six years.

In December of that year, Jay Zwally of Nasa agreed, giving the ice till 2012. A year later, in 2008 Professor David Barber went one step further, saying the ice would all be gone that very summer.

For sheer persistence in getting it wrong, however, the prize must go to Peter Wadhams, professor and head of the Polar Ocean Physics Group in the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge:

• In 2012, he predicted that the Arctic would be ice-free by 2015/16.

• In 2014, he thought it might last till 2020.

• In 2016, he confidently predicted the Arctic would be ice-free that summer (though curiously he now defined ‘ice-free’ as less than 1 million square kilometers).

All these pronouncements were designed for political propaganda purposes, not for scientific reasons, and were widely propagated by the gullible media.