Archives par mot-clé : Alarmism

better to know...?, climate-debate

Ocean Temperatures and Climate Hysteria: A Lesson in Perspective

by C. Rotter, Dec 20, 2024 in WUWT

For the past two years, headlines, policy statements, and social media feeds have been flooded with dire warnings about rising ocean temperatures. Every uptick in the graphs was treated as irrefutable proof of humanity’s march toward ecological collapse. The news cycle offered little room for nuance, and as usual, the loudest voices declared the end was nigh. But a recent tweet from Javier Viños, supported by a graph of global sea surface temperatures (SST), reminds us how quickly climate “emergencies” dissolve when confronted with even the faintest hint of natural variability.

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better to know...?, climate-debate

Study Debunks Media’s Iceberg Alarmism: Antarctic Calving ‘Statistically Unexceptional’

by A. Watt,  Dec 20, 2024 in ClimateChangeDispatch

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The climate chicken littles of the media blamed it on climate change then, but today, it looks like an Emily Litella moment has just occurred, as a new peer-reviewed scientific study says it wasn’t anything abnormal, nor should we worry about it.

The new study published in Geophysical Research Letters tosses ice-cold water on those overhyped media claims.

In the study, MacKie et al. (2024) analyzed 47 years of observational satellite data from Antarcticaand found that there has been no trend in annual Antarctic maximum calving size between 1976 and 2023.

The key findings of the study are:

  • There has been no detectable upward trend in the annual maximum iceberg area in Antarctica since 1973, based on satellite measurements.
  • The break-off of Iceberg A-68 from the Larsen C Ice Shelf was not statistically notable.
  • Calving events several times larger than anything observed in the modern record could occur, and still, it would not necessarily be due to climate change.

To be clear, the calving of the A-68 iceberg was “statistically unexceptional” in the historical satellite record. Let that sink in. The authors write:

This finding suggests that extreme calving events such as the recent 2017 Larsen C iceberg, A-68, are statistically unexceptional and that extreme calving events are not necessarily a consequence of climate change.

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climate-debate

Dear Climate Alarmists, Welcome to Your Worst Nightmare

by A. Watts, Nov 27, 2024 in WUWT

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Americans are finally starting to understand the truth about climate change while simultaneously becoming aware that climate alarmists have ulterior motives at hand, many of which are in direct opposition to the fundamental best interests of everyday Americans.

Thanks to courageous truth seekers like my colleagues at The Heartland Institute and many allied organizations, Americans are more able than ever to receive accurate information dispelling common myths and lies pushed by climate alarmists. As anyone can read at ClimateRealism.com, the seas are not rising and weather events like hurricanes, heatwaves, droughts, etc. are not becoming more frequent nor deadlier. In fact, in many cases, the exact opposite is occurring.

Another huge factor that helped Americans realize the dubiousness of the climate alarmist narrative is that their solutions make no sense, do not address the so-called problems, and all too often end with less liberty and more government. Apparently, Americans are beginning to understand that climate justice, for instance, is mostly about wealth redistribution and has little to do with a cleaner environment.

A few weeks ago, Americans went to the polls and clearly rejected the climate alarmist nonsense that has been hoisted upon the nation over the past four years. Without a doubt, the Biden-Harris administration has been the most zealous when it comes to climate alarmism. From nixing the Keystone XL Pipeline to mandating electric vehicles to deciding the type of appliances Americans can purchase, the Biden-Harris administration has been all-in on climate alarmism.

But this is not what the American people want. To be clear, nearly all Americans want to protect the environment and desire clean air and water.

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better to know...?, climate-debate

The ‘Climate Emergency’ is a Myth, Says Nobel Prize Winner John Clauser. Here’s Why He’s Right

by Dr R. Kalveks, June 8, 2024 in DailySceptic

In a recent lecture, Nobel Laureate physicist John Clauser exposed how the Intergovernmental Panel on Climate Change (IPCC) models and analyses, which are relied upon by politicians and activists to support claims of a ‘climate crisis’, do not meet basic standards of scientific enquiry. Clauser received his Nobel prize in 2022 for the observational measurement of quantum entanglement and understands well the problem of distinguishing a physical signal from background noise.

Clauser shows that, when corrected for the IPCC’s error prone arithmetic and statistics, the observational data do not support the power imbalance claimed to be responsible for global warming. Furthermore, the outputs of climate models are at variance with the observational record. Clauser discusses the roles of convection, clouds and their variability in providing a negative feedback mechanism, and proposes that this acts as a thermostat that stabilises surface temperatures. Clauser’s conclusion is that claims of a ‘climate crisis’ lack scientific substance and that Net Zero policies are an unnecessary hindrance.

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Energy Flows in the Climate System

It is useful to start with a simplified depiction of the solar energy flow that reaches the Earth, its transformation by the Earth’s climate system and the resulting (mostly thermal) energy flow that leaves the Earth’s atmosphere. This is shown in Figure 1, taken from a recent IPCC report.

The IPCC diagram shows an energy imbalance, being the difference between the incoming visible and UV solar radiation 340 W/m2, less the amount reflected (100 W/m2), less the outgoing infra-red (IR) thermal radiation (239 W/m2). The claimed imbalance at the Top of the Atmosphere is 0.7 W/m2 (give or take 0.2) and the IPCC asserts that this is driving the continuing warming of the climate system.

Table. 1. Top of Atmosphere Energy Flows. Energy flows at the top of the Earth’s atmosphere, with their errors as per Figure 1. The balance is calculated from its components.

The radiation measurements necessary for this calculation are carried out at different wavelengths by instruments carried by satellites, and observational errors are inevitable. Combining the uncertainty ranges in the incoming, reflected and outgoing streams shown in Table 1, by using the standard statistical Root Mean Square rule, shows that the error margin in the calculated imbalance is actually 3 W/m2, some 15 times greater than the 0.2 W/m2 error margin claimed by the IPCC. In short, there is no observedenergy imbalance. The claimed imbalance of 0.7 W/m2 is swamped by observational error, and, from a scientific perspective, it is described by Clauser as a “fudge”.

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better to know...?, climate-debate

Media Reports Earth’s ‘1.5C Temperature limit’ was ‘breached for 12 months in a row’ – Nothing Bad Happened

by A. Watts, July 10, 2024 in WUWT

Originally posted at ClimateREALISM

Recently, several media outlets claimed that June 2024 was the hottest June on record globally and that it topped off a string of 12 or 13 warmer than normal months, which they blamed on human-induced climate change. Each of the news stories made false claims of reaching climate tipping points, extreme weather events, and that the extended streak of hot temperatures proved a “climate crisis” was at hand.

Here are some of the headlines: Temperatures 1.5C above pre-industrial era average for 12 months, data shows (The Guardian,) June sizzled to a 13th straight monthly heat record, but July might break string (National Public Radio,) and World in line for hottest year as 1.5C limit breached for 12 months in a row (Financial Times.)

That ongoing 1.5C temperature limit scare-story has people around the world rattled. For example, this infographic from The Asia-Pacific branch of the International Union of Food workers (IUF) says (bold author’s):

Global warming caused by human activities reached approximately 1°C over the past 170 years, increasing at 0.2°C per decade. Scientists warn that an average rise of more than 1.5°C in the surface temperature of the earth compared to pre-industrial levels will be catastrophic for the environment and human health.

But despite 12 months of the globe being above the so-called temperature limit, nothing bad happened on a global scale. Claims of climate catastrophe once we passed the so-called 1.5C temperature limit, never happened. The limit was nothing more than a political talking point from the 2015 Paris Climate Conference, as described in this Associated Press article: The magic 1.5: What’s behind climate talks’ key elusive goal. The AP wrote, “in a way both the ‘1.5 and 2 degree C thresholds are somewhat arbitrary,’ Stanford University climate scientist Rob Jackson said in an email. ‘Every tenth of a degree matters!’”

Now, despite surpassing that arbitrary limit, the “crisis” progressive politicians and alarmists in the mainstream media have been warning about failed to materialize.

First let’s check the global temperature. The source of all these news stories comes from a recent press release by Copernicus, part of the European Commission. A graph by Copernicus, seen in Figure 1 below, illustrates the “limit” and the 12-month temperature peak:

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better to know...?, climate-debate

Green Billionaires Press Hollywood to Promote Armageddon Climate Messages in Movies

by C. Morrison, Feb27, 2024 in TheDailySceptic

 

Green billionaires are pouring money into discreet campaigns to persuade Hollywood writers to catastrophise the climate in future film and television scripts. One of their main vehicles is Good Energy, which tells writers that showing anger, depression, grief or other emotion in relation to the climate crisis, “can only make characters more relatable”. Los Angeles-based Good Energy is funded by numerous billionaire foundations including Bloomberg Philanthropies, the Sierra Club and the Climate Emergency Fund; the latter operation is part-funded by Aileen Getty and is one of the paymasters of the Just Stop Oil pests.

Good Energy aims to weave climate alarm into all types of film-making, “especially” if it is not about climate. With the support of Bloomberg, it recently published ‘Good Energy – A Playbook for Screenwriting in the Age of Climate Change’. It claims the Playbook is “now the industry’s go-to guide to incorporating climate into any storyline or genre”. As with almost all green campaigning groups, Good Energy would not exist without the support of billionaire funding. These operations seek a supra-national collectivist Net Zero solution to a claimed climate emergency. Good Energy acknowledges it would not exist without this funding, adding, “as collaborators and champions, each has provided a unique contribution for which we are endlessly grateful”.

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climate-debate

Hottest In 125,000 Years?

by P. Homewood, Dec 26, 2023 in WUWT

https://www.reuters.com/business/environment/this-year-virtually-certain-be-warmest-125000-years-eu-scientists-say-2023-11-08/

Just about all of the media have been peddling the “Hottest for 125,000 years” claim, which suggests a very concerted effort by the climate establishment in the run up to COP28.

The claim is self evident and baseless nonsense for a number of good reasons:

  • There is no such thing as “a global average temperature”
  • Even now we have very sparse coverage of temperature measurements. Prior to satellites, we had virtually no data  outside of the US, Europe and a few other built up areas
  • The temperature record we do have is thoroughly corrupted by UHI, and only dates back to the late 19thC
  • Natural variations, including ENSO, volcanic activity etc, can easily cause temperature swings of a degree Celsius from year to year, and decade to decade. But historical proxies don’t have the fine resolution to pick these up, they merely give an idea of average temperatures over decades and even centuries. Consequently you cannot compare one year now with the general climate of, say, 2000 years ago.

But forget about all of these theoretical objections, because the climatic evidence we do have is overwhelming, and it tells us that the climate has been much warmer than now for most of the last 10000 years, since the end of the ice age.

Here are ten powerful, incontrovertible pieces of evidence:

1) Greenland

 

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climate-debate

Hot Summer In The City Or Global Boiling? Three New Studies Refute UN Hysteria

by M. Adams, Nov 1, 2023 in ClimateChangeDispatch

Nobody can rightfully claim that summer 2023 did not generate its share of fantasy-laced headlines. In this regard, the United Nations remains the world champ of propaganda by cranking out headlines including the phrase “the era of global boiling has arrived.”

The ink barely dried when it was followed by another work of climate sensationalism, this time with a headline claiming “Humanity has opened the gates to hell.” [emphasis, links added]

Amidst the swirling vortex of lies, there’s new information from the CO2 Coalition.

How many people are aware that, according to the EPA’s data from 1948 to 2020, a total of 863 weather monitoring stations—that is, 81% of them—have reported that the number of hot days has either decreased or remained unchanged?

For those of you who prefer visuals over words, there is a brilliant map [shown below and at the link above] showing that, contrary to the UN’s hysteria, in the United States, at least, we are not facing an era of global boiling, nor are we looking into the gates of hell.

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better to know...?, climate-debate

Shellenberger: Why Everything They’ve Said About The Environment Is Wrong

by M. Schellenberger, Nov 1, 2023 in ClimateChangeDispatch

By now, almost everyone knows the conventional wisdom: climate change is an existential threat to human civilization.

Fires, floods, and hurricanes are worsening; the coral on the Great Barrier Reef is dying; we’re in a Sixth Mass Extinction; the only way to turn things around is with inexpensive renewables, and no longer eating meat; and we don’t need nuclear energy, which is too dangerous. [emphasis, links added]

It’s a powerful story, one that has motivated millions of people to march in the streets and governments to spend $1 trillion annually on green energy.

There’s only one problem with it: practically everything you’ve heard about climate change is wrong.Here’s a set of facts you won’t read in The New York Times:

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better to know...?, climate-debate

Climate Alarmists’ New Normal: Catastrophizing Every Weather Event

by Dr. M.  Wielicki, Oct 2, 2023 in ClimateChangeDispatch

Catastrophizing the weather…

“Catastrophizing” the weather refers to the exaggerated portrayal or emphasis on the severity, frequency, or implications of weather events beyond what scientific data and historical context might suggest.

In essence, it involves making a weather event seem more disastrous or exceptional than it truly is. [emphasis, links added]

Over time, consistent exaggeration can erode public trust in weather forecasts and warnings. If people believe that threats are frequently overblown, they may become complacent and fail to take necessary precautions during genuinely severe events.

If authorities act on exaggerated weather forecasts, it could lead to the unnecessary allocation of resources, diverting them from regions or times where they might be genuinely needed.

The constant exposure to exaggerated disaster threats can induce unnecessary fear and anxiety among the public, potentially affecting mental well-being.

If every weather event is portrayed as a catastrophe, it becomes challenging for the public to discern which events pose genuine threats. This can dilute the urgency of actual severe weather warnings.

In the context of climate change, while it’s important to communicate the real risks associated with a warming planet, it’s equally essential to avoid undue alarmism.

Balanced, accurate communication ensures that the public remains informed, however, that is not what we commonly see.

For example, the recent rains in NYC have been noted as evidence of significant climatic shifts.

Meet The Alarmists:

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better to know...?, climate-debate

How ‘Preapproved Narratives’ Have Corrupted Science

by A. Finley, Oct 2, 2023 in ClimateChangeDispatch

Scientists were aghast last month when Patrick Brown, climate director at the Breakthrough Institute in Berkeley, Calif., acknowledged that he’d censored one of his studies to increase his odds of getting published.

Credit to him for being honest about something his peers also do but are loath to admit. [emphasis, links added]

In an essay for the Free Press, Mr. Brown explained that he omitted “key aspects other than climate change” from a paper on California wildfires because such details would “dilute the story that prestigious journals like Nature and its rival, Science, want to tell.”

Editors of scientific journals, he wrote, “have made it abundantly clear, both by what they publish and what they reject, that they want climate papers that support certain preapproved narratives.”

Nature’s editor, Magdalena Skipper, denied that the journal has “a preferred narrative.” No doubt the editors at the New York Times and ProPublica would say the same of their own pages.

Mr. Brown’s criticisms aren’t new. In 2005 Stanford epidemiologist John Ioannidis wrote an essay titled “Why Most Published Research Findings Are False.”

He contended that scientists “may be prejudiced purely because of their belief in a scientific theory or commitment to their own findings.”

“The greater the financial and other interests and prejudices in a scientific field, the less likely the research findings are to be true,” Dr. Ioannidis argued.

“Many otherwise seemingly independent, university-based studies may be conducted for no other reason than to give physicians and researchers qualifications for promotion or tenure.”

In addition, many scientists use the peer-review process to suppress findings that challenge their own beliefs, which perpetuates “false dogma.”

As Dr. Ioannidis explained, the more scientists there are in a field, the more competition there is to get published and the more likely they are to produce “impressive ‘positive’ results” and “extreme research claims.” …snip…

The peer-review process is supposed to flag problems in studies that get submitted to journals. But as Dr. Ioannidis explained in a Sept. 22 JAMA editorial, the process is failing:

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better to know...?, climate-debate

Climate Emergency Not Supported by Data, Leading Italian Scientists Say

by C. Morrison, Sep 15, 2022 in ClimateChangeDispatch

Four leading Italian scientists have undertaken a major review of historical climate trends and concluded that declaring a ‘climate emergency’ is not supported by the data.

Reviewing data from a wide range of weather phenomena, they say a ‘climate crisis’ of the kind people are becoming alarmed about “is not evident yet”. [bold, links added]

The scientists suggest that rather than burdening our children with anxiety about climate change, we should encourage them to think about issues like energy, food, and health and the challenges in each area, with a more “objective and constructive spirit” and not waste limited resources on “costly and ineffective solutions.”

During the course of their work, the scientists found that rainfall intensity and frequency are stationary in many parts of the world.

Tropical hurricanes and cyclones show little change over the long term, and the same is true of U.S. tornadoes. Other meteorological categories including natural disasters, floods, droughts, and ecosystem productivity show no “clear positive trend of extreme events.”

Regarding ecosystems, the scientists note a considerable “greening” of global plant biomass in recent decades caused by higher levels of carbon dioxide in the atmosphere. Satellite data show “greening” trends over most of the planet, increasing food yields and pushing back deserts.

The four scientists are all highly qualified and include physics adjunct professor Gianluca Alimonti, agro-meteorologist Luigi Mariani, and physics professors Franco Prodi and Renato Angelo Ricci. The last two are signatories to the rapidly growing ‘World Climate Declaration’.

This petition states that there is no climate emergency and calls for climate science to be more scientific. It also calls for the liberation from the “naïve belief in immature climate models.” In the future, it says, “climate research must give significantly more emphasis to empirical science.”

‘Extreme’ weather events attributed by climate models – somehow – to anthropogenic global warming are now the main staple of the climate alarmist industry.

As the Daily Sceptic reported on Monday, Sir David Attenborough used a U.K. Met Office model forecast in the first episode of Frozen Planet II to claim that summer Arctic sea ice could be gone within 12 years.

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better to know...?, climate-debate

A Round-Up of the BBC’s Climate Howlers of the Past 12 Months

by C. Morrison, Aug 6, 2023 in TheDailySceptic

The annual Paul Homewood review of the BBC’s climate howlers is always an enjoyable read, even for those keen students who follow his investigative work during the year. But with the consensus starting to crumble for the insane Net Zero collectivist project, this latest instalment of Tall Climate Tales from the BBC seems to have attracted a wider audience. Talk TV and the Daily Express have both given extensive coverage to the latest set of BBC bloopers.

How we laughed when Julia Hartley-Brewer read from the list on her TalkTV morning show. Such as the report from the Norfolk village of Happisburgh where “extreme weather linked to climate change” has eroded the soft sand cliff rock. No mention of the finding of the British Geological Society that it is likely the Norfolk cliffs have been “eroding at the present rate for about the last 5,000 years”.

Or the report that the 2021 Atlantic hurricane season was the third most active on record. Nothing of the sort, of course, with Homewood observing that since 1851 there have been 32 years with a higher count of hurricanes. There was also an evidence-free claim in September 2022 on the BBC Verify that hurricanes were getting more powerful. The U.S. weather service NOAA states in its latest review that “there is not strong evidence for an increase since the late 1800s in hurricanes, major hurricanes, or the proportion of hurricanes that reach major hurricane intensity”.

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climate-debate

Monday Mirthiness – Mike Mann’s Hockey Team ‘will keep those papers out somehow’

by A. Watts, Aug 28, 2023 in WUWT

Remember the famous quote from the head of the UK Climate Research Unit, Dr. Phil Jones that was laid bare in ClimateGate?

…I can’t see either of these papers being in the next IPCC report. Kevin [Trenberth] and I will keep them out somehow, even if we have to redefine what the peer-review literature is!

Dr. Phil Jones – ClimateGate emails

These guys never learn. Josh writes on Twitter:

Mikey’ The Trick’ Mann at work…Another story about ‘scientists’ trying to bury papers and evidence they don’t like. It’s Climategate deja vu. Read about it here https://quadrant.org.au/opinion/doomed-planet/2023/08/how-science-is-done-these-days/

and here: The Climategate Gang Rides Again!

 

Shameless abuse of science…but then again, we know Mann has no shame, only hubris

better to know...?, climate-debate

New Scientist: How worried should we be about climate change?

by D. Whitehouse, Aug23, 2023 in NetZeroWatch

How worried should we be, asks New Scientist in a Climate Change Special Issue. The 19th August issue is billed as a guide to a year of extreme weather – “a year of extremes,” when 2023 is barely half way over.

In a New Scientist Climate Special Report senior reporter Michael Le Page asks if climate change is worse than we thought it would be? Well, it depends upon who you ask – and New Scientist usually asks the same experts for their unwavering opinions which, as we shall see, are sometimes just a premonition they have.

The article in question quotes the usual crew: Peter Stott of the UK Met Office, Piers Forster of the University of Leeds, Zeke Hausfather of Berkeley Earth and Stefan Rahmstorf of the Potsdam Institute for Climate Impact Research in Germany. Together they have been quoted in the New Scientist 109 times.

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climate-debate

Summer: The Best Of Times For Climate Alarmists

by G. Wrightstone, Aug 25, 2023 in ClimateChangeDispatch

August and September are great months to be a professional climate alarmist like Dr. Michael Mann of the University of Pennsylvania.

You have hurricanes making landfall, wildfires seemingly everywhere, the odd F-4 tornado wreaking devastation, and you can pretend that these [events] never happened before we started adding CO2 to the atmosphere. [emphasis, links added]

Plus, you have virtually all the media and a host of “environmental” groupsparroting every seemingly scientific observation without question.

Yes, alarmists find it best to use their time during the hazy hot days of summerlinking every possible weather event to our use of fossil fuels and that demon molecule, CO2.

They must do this in order to instill the fear required to impose economically crippling new taxes or restrict citizens’ freedom to choose what car, dishwasher, stove, showerhead or washing machine to purchase.

Right now, with wildfires in Canada and Greece and the tragic fire in Lahaina, Maui, the focus is on linking supposed man-made warming to these events and characterizing them as unprecedented.

Are they really extraordinary and increasing?

NASA reports that between 2003 and 2019, the global area burned has dropped by roughly 25 percent.

In addition, the Copernicus Atmosphere Monitoring Service reports that according to satellite data, the year 2020 was one of the least active years since records began in 2003.

Learn more about the Lahaina fire here.

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Also : China’s summer of climate destruction

better to know...?, climate-debate

The Political Origins Of The Climate Change Swindle

by L. Balzer, A, Aug 15, 2023 in ClimateChangeDispatch

A Canadian oil magnate and friend of David Rockefeller, Maurice Strong [pictured] set up the Intergovernmental Panel on Climate Change (IPCC) in 1992.

Strong had been chairman of the 1972 Earth Day UN Conference, at which he advocated population reduction and the lowering of living standards in the interest of “saving the environment.” [emphasis, links added]

Strong asked, “Isn’t the only hope for the planet that the industrialized civilizations collapse? Isn’t it our responsibility to bring that about?”

He also boldly claimed, “Current lifestyles and consumption patterns of the affluent middle class – involving meat intake, use of fossil fuels, appliances, air-conditioning, and suburban housing – are not sustainable.”

Strong had helped found the Club of Rome in 1968, which incorrectly believed that Earth’s population was out of control and using up resources too fast.

Their beliefs stemmed from the mistaken idea advanced by Thomas Malthus in his 1798 essay that the world’s population would outgrow the food supply.

In his 1968 book, “The Population Bomb“, Paul Ehrlich revived Malthus’ idea.

Ehrlich predicted,

“The battle to feed humanity is over. In the 1970s, the world will undergo famines. Hundreds of millions of people are going to starve to death in spite of any crash programs embarked upon now. Population control is the only answer.”

Although Ehrlich’s forecasts proved incorrect, many people, some of them billionaires, still believe the world’s population should be as low as one billion – not the current 7.5 billion. (Bill Gates stated this explicitly in a Ted Talk!)

They’re afraid that if Third World people get the energy they need to raise their living standards, the Earth’s population will rise further.

This couldn’t be more untrue. History has shown in every instance that when a population’s living standards increase, the birth rate decreases. This principle is known as the Demographic Transition.

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better to know...?, climate-debate

No, July Wasn’t The Warmest Month In Human History

by Dr M. Wielicki, Aug 14, 2023 in ClimateChangeDispatch

What’s going on?

During the last month, we were bombarded with headlines such as:

This month is the planet’s hottest on record by far – and hottest in around 120,000 years, scientists say —CNN, July 27, 2023

July 2023 ‘Virtually Certain’ To Be Hottest Month In Human History —Forbes, July 27, 2023

So is there any validity to these claims… Was July the hottest month in human history? [emphasis, links added]

…snip…

Our civilization’s trajectory, from its humble beginnings in the wild to its current digital sophistication, serves as a testament to humanity’s relentless drive for advancement and ability to adapt.

The African Humid Period (AHP) and the rise of the Egyptian civilization…

The African Humid Period (AHP) is a climatic phase during the Holocene epoch characterized by much wetter conditions in large parts of Africa, especially the Sahara region, compared to the present day.

This significant shift in precipitation patterns had profound impacts on both the environment and early human societies of the continent.

The AHP roughly spanned from about 15,000 to 5,000 years ago, though exact timings can vary based on specific regions within Africa. It began at the end of the Last Glacial Maximum when ice sheets started retreating in the Northern Hemisphere.

One of the most dramatic manifestations of the AHP was the transformation of the Sahara desert. Today’s vast desert expanse was once a mosaic of grasslands, lakes, and rivers.

This “Green Sahara” supported a variety of wildlife, from large mammals like elephants and giraffes to a variety of fish in its waterways.

The wet conditions of the AHP supported a much denser human population in regions that are now desert. Archaeological evidence shows that these ancient Saharan communities engaged in fishing, hunting, cattle herding, and even agriculture.

The abundance of water and food allowed for relatively settled lifestyles compared to the more nomadic existences necessitated by the arid conditions that followed.

The primary driver behind the AHP is believed to be warmer summer temperatures and changes in the monsoon systems, which brought more rain to the African continent.

As these parameters shifted over millennia, the monsoons weakened, leading to the aridification of vast regions.

The African Humid Period serves as a reminder of the profound climatic variability our planet has experienced throughout relatively recent geological history at preindustrial levels of CO2, and the relative insensitivity of surface temperature and/or humidity and the concentration of GHG in the atmosphere.

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climate-debate

Those who don’t study weather history are condemned to repeat it as ‘climate alarmism’

by A. Watts, Aug 14, 2023 in WUWT

Our friend Steve Hayward over at Powerline Blog gave me permission to reprint this. It’s weather deja vu all over again. These familiar headlines could just as well be happening today, excpet back then it was reported as weather, not climate. – Anthony

WHITHER THE WEATHER?

The scenes out of Lahaina on Maui are horrific, but naturally the climate cult is rushing to say the inferno that engulfed the town is yet more proof of climate change, and hand over your car keys and gas stoves now. “Yes, I Blame the Climate Crisis for the Horrors on Maui,” says a writer in that premier science journal Esquire. Never mind that Hawaiian officials have been warning for years that overgrowth of non-native grasses on the dry side of Maui and other Hawaiian islands was creating a severe wildfire risk. (For an antidote to the madness, see “Stop claiming that fires in Canada, Greece, and now Maui are due to climate change.”)

Much of the summer’s news has been about heat waves, which are also said to be proof of climate change, even though very few record high temperatures were broken this summer. Heat waves have always been big news for the media, but decades ago no one thought to blame them on human sin.

It is worth following a fellow named Don Penim on Twitter. Mr. Penim appears to have sufficient leisure time on his hands to scour old newspaper archives for articles on heat waves and extreme weather events, and he also turned up headlines from a few decades ago to remind us that wildfires are not unusual for Hawaii:

Let’s note a few others from Mr. Penim’s archive while we’re here—note the dates of most of these stories:

 

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climate-debate

Nobel Prize winner Dr. John F. Clauser signs the Clintel World Climate Declaration

by Clintel, Aug 2023

John F. Clauser, winner of the 2022 Nobel Prize in Physics for his work on quantum mechanics, has decided to sign the World Climate Declaration of Clintel with its central message “there is no climate emergency”. Clauser is the second Nobel Laureate to sign the  declaration, Dr. Ivar Giaever was the first. The number of scientists and experts signing the World Climate Declaration is growing rapidly and now approaching 1600 people.

Clauser has publicly distanced himself from climate alarmism and this year he also joined the Board of Directors of the CO­2Coalition. In the announcement by the CO2 Coalition, Clauser was quoted in the following way:

“The popular narrative about climate change reflects a dangerous corruption of science that threatens the world’s economy and the well-being of billions of people. Misguided climate science has metastasized into massive shock-journalistic pseudoscience. In turn, the pseudoscience has become a scapegoat for a wide variety of other unrelated ills. It has been promoted and extended by similarly misguided business marketing agents, politicians, journalists, government agencies, and environmentalists. In my opinion, there is no real climate crisis. There is, however, a very real problem with providing a decent standard of living to the world’s large population and an associated energy crisis. The latter is being unnecessarily exacerbated by what, in my opinion, is incorrect climate science.”

IPCC is spreading dangerous misinformation
In July Clauser gave a talk at the event Quantum Korea 2023. He warned the audience about the growing amount of pseudoscience and misinformation.

“Now I am not alone in observing the dangerous proliferation of pseudoscience. Recently, The Nobel Foundation has formed a new panel to address the issue called the International Panel on Information Environment. They plan to model it after the UN’s International Panel on Climate Change, the IPCC.
I think personally that they are making a big mistake in that effort because in my opinion the IPCC is one of the worst sources of dangerous misinformation. What I’m about to recommend is in furtherance of that, of the aims of that panel. […]

I have a second elephant in the room that I have recently discovered regarding climate change. I believe that climate change is not a crisis. […]

Beware. If you’re doing good science, it may lead you into politically incorrect areas. If you’re a good scientist, you will follow them. I have several I won’t have time to discuss, but I can confidently say there is no real climate crisis and that climate change does not cause extreme weather events.”

As Clintel demonstrated in its recent book The Frozen Climate Views of the IPCC, the IPCC indeed made serious errors in its latest report. Shortly after his talk in Korea the International Monetary Fund (IMF) cancelled a scheduled talk by Clauser about climate models. In an interview with the Epoch Times, Clauser said with respect to climate science: “We are totally awash in pseudoscience”.

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climate-debate

21st Century Global Disasters

by P. Homewood, Aug 13, 2023 in NotaLotofPeopleKnowThat

A new peer-reviewed paper out this week by Alimonti and Mariani asks whether global disasters have increased. Their answer is that they have not (and if the name sounds familiar, it is the same Alimonti whose paper is being improperly retracted — more fresh info on that in the coming days).

As I read their paper today I noticed that the time series they reported from the EM-DAT databaselooked a bit different than that I had last explored and presented here at THB late last year. So today I downloaded the most recent data from EM-DAT, and indeed there has been some changes to the most recent three years, presumably due to late entries into the database (however I will enquire as all post-hoc dataset updates should be documented). EM-DAT has been funded since the late 1990s by the U.S. Agency for International Development.

Below is the updated time series of global hydrological, climatological and meteorological disasters in the EM-DAT database, along with the linear trend, over the period 2000 to 2022.

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better to know...?, climate-debate

The Climate Crisis Frenzy Is a Mass Hysteria Movement

by W. Kovacs, Aug 11, 2023 in WUWT

Climate fear-mongering, eco-anxiety counseling and a rocky road to Third World status

 

Ever since the Biden administration promised to eliminate fossil fuels, climate activists have combined their quest to use the government to control society with creating a collective group possessed by illusions and excessive fears that climate change is destroying Planet Earth. This Climatism Collective believes that dismantling society will enable government to prevent the end of the world.

Researchers refer to such collective fears as mass hysteria. They consider it a psychogenic illness, “a condition that begins in the mind rather than the body.” It involves people feeling anxious, sick or crazed, notwithstanding the absence of any physical reason for their condition.

A recent Lancet study of 10,000 young people, ages 16–25, found that 59% were extremely worried about climate change, and 84% were at least moderately worried. The respondents suffered from sadness, anxiety and anger and felt powerless, helpless and guilty.

The authors concluded that climate anxiety is so great that these young people believe humanity is doomed, everything they value is being destroyed, and they should refrain from having children. They also believe government could protect them if it would listen to their feelings, validate and respect their beliefs and demands, and implement policies that eliminate fossil fuel use and “unsustainable” lifestyles.

Mass hysteria episodes have been recorded since the Middle Ages. There have been witch trials, screaming trances and even a “dancing plague” in 1518, with stressed-out participants dancing for weeks, sometimes until they were so tired they died.

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climate-debate

‘Less ice means more conflicts with polar bears’ narrative not supported by scientific evidence

by S. Crockford, Apr 18, 2023 in WUWT

 

In another failed prediction, a new study on the number of polar bears killed in self-defense in Svalbard, Norway did not find the expected correlation with lack of sea ice or more tourists (Vongraven et al. 2023). Contrary to expectations, fewer bears were actually killed in self-defence as sea ice declined between 1987 and 2019.

Money Quote from the abstract:

“…ice cover had no significant impact on the odds for a [polar bear] kill.”

It seems the warning from polar bear specialist Andrew Derocher a few months ago was just plain wrong:

“Poor ice conditions for polar bears at Svalbard this year. Low ice will make tough hunting conditions this coming spring. Time to plan for more human-bear conflicts unless conditions change.” [13 Feb 2023 tweet, my bold]

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From the Discussion section of the Vongraven paper (pg. 9), my bold:

“More bears on land for longer periods during which more people were accessing the same habitats could have been expected to increase the number of bear-human interactions, and the number of bears killed in defence of life and property. Despite a positive relationship between number of tourists and number of kills at a given time, the total numbers of bears killed did not increase over the years of the study and per-capita kills strongly declined. … This overall reduction in kills, despite greatly reduced sea ice habitat availability and more polar bears spending more time on land, may reflect success of the Svalbard Environmental Act of 2001.”

Nice save there, at the end. Hey, this wasn’t a failure of our prediction that loss of sea ice due to global warming would cause more polar bears to be killed because they attacked people, it’s a resounding victory for a law prohibiting people “seeking out” polar bears! As noted in the next two sentences:

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better to know...?, climate-debate

A Misunderstanding Of Clouds Is Driving Global Warming Fervor

by R. Barmby, Apr 10, 2023 in ClimateChangeDispatch

I’ve looked at climate change from both sides now, and I have found common ground between proponents and skeptics of the belief that climate change is largely caused by humans.

When it comes to forecasting global temperatures, distinguished experts in both camps agree a dominant variable cannot be simulated in computer models because clouds get in the way.

Among the proponents is Dr. Bjorn Stevens, a contributing author to the Intergovernmental Panel on Climate Change (IPCC) Assessment Report 5 (2014). Dr. Stevens is also the director at the Max Planck Institute for Meteorology, Hamburg, Germany, and a cloud expert. [emphasis, links added]

In a recent interview, he acknowledged the contribution of clouds to global warming is overestimatedin the IPCC’s “Climate Change 2021: The Physical Science Basis.”

“Clouds are tricksters,” he said, referring to their complexity. However, he said, many scientists use oversimplified representations of clouds in modeling “as a guide because they are easier to simulate. This makes the climate models less accurate.”

On the skeptic side is Dr. Richard S. Lindzen, a former lead author for IPCC Assessment Report 3 and now a vocal critic of the IPCC.

In a recent podcast, the interviewer noted that Lindzen had published sufficient research papers to earn 80 PhDs. (Lindzen humbly declined the praise.)

Lindzen, professor emeritus of Atmospheric Sciences at the Massachusetts Institute of Technology, points out that IPCC models rely on the assumption that water vapor and clouds amplify the greenhouse gas effects of CO2 in order to achieve forecasts of catastrophic global warming.

The IPCC theory is that a warmer atmosphere will have a higher content of water vapor – itself a greenhouse gas – that adds to the warming caused by CO2.

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climate-debate

New Study: Sea Levels Have Receded Over Last 1500 Years, Including Since 1800s, Along India’s Coasts

by K. Richard, April 3, 2023 in NoTricksZone

Contrary to alarmist claims, the seas have been retreating and the coasts have been expanding seaward along the coasts of southern India since the early 1800s.

Korkai was a port city, capital, and the principal trade center for India’s Pandya Kingdom from the 6th to 9th centuries CE.

While Korkai was situated on the sea coast during the early stages of the Medieval  Warm Period, the city center is now approximately 5 or 6 km from the coast. This confirms the sea has substantially receded since then.

Nautical maps from the 1805-1828 period clearly affirm the coast of southern India has continued expanding seaward in the last 200 years, despite the reported rise in relative sea level (Gupta and Bhoolokam Rajani, 2023).

In other words, much more coastal land area is above sea level today than during the Little Ice Age, or when CO2 levels were said to be 280 ppm.

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