Key phases of human evolution coincide with flickers in eastern Africa’s climate

by University of Cologne, Sep 26, 2022 in ScienceDaily


Three distinct phases of climate variability in eastern Africa coincided with shifts in hominin evolution and dispersal over the last 620,000 years, an analysis of environmental proxies from a lake sediment record has revealed. The project explores the youngest chapter in human evolution by analysing lacustrine sediments in close vicinity to paleo-anthropological key sites in eastern Africa using scientific deep drilling. The research endeavour included more than 22 researchers from 19 institutions in 6 countries, and was led by Dr Verena Foerster at the University of Cologne’s Institute of Geography Education. The article ‘Pleistocene climate variability in eastern Africa influenced hominin evolution’ has now appeared in Nature Geoscience.

Despite more than half a century of hominin fossil discoveries in eastern Africa, the regional environmental context of the evolution and dispersal of modern humans and their ancestors is not well established. Particularly for the Pleistocene (or Ice Age) between 2,580,000 to 11,700 years ago, there are no continuous high-resolution paleo-environmental records available for the African continent.

The research team extracted two continuous 280-metre sediment cores from the Chew Bahir Basin in southern Ethiopia, an area where early humans lived and developed during the Pleistocene. Chew Bahir is very remotely situated in a deep tectonic basement in close vicinity to the Turkana area and the Omo-Kibish, key paleo-anthropological and archaeological sites. The cores yielded the most complete record for such a long period ever extracted in the area, revealing how different climates influenced the biological and cultural transformation of humans inhabiting the region.

Journal Reference:

Verena Foerster, Asfawossen Asrat, Christopher Bronk Ramsey, Erik T. Brown, Melissa S. Chapot, Alan Deino, Walter Duesing, Matthew Grove, Annette Hahn, Annett Junginger, Stefanie Kaboth-Bahr, Christine S. Lane, Stephan Opitz, Anders Noren, Helen M. Roberts, Mona Stockhecke, Ralph Tiedemann, Céline M. Vidal, Ralf Vogelsang, Andrew S. Cohen, Henry F. Lamb, Frank Schaebitz & Martin H. Trauth. Pleistocene climate variability in eastern Africa influenced hominin evolution. Nature Geoscience, 2022 DOI: 10.1038/s41561-022-01032-y

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.”

http://news.bbc.co.uk/1/hi/sci/tech/7139797.stm

.See also: The Ice Free Arctic – Part II

How Europe Stumbled Into an Energy Catastrophe

by B. Hart,  Sep 13, 2022 in Intelligencer


Since debuting on Substack in the spring of 2021, Doomberg — an anonymous group of writers whose avatar is a distinctive green chicken — has become one of the most popular financial publications on the site. The team has also become a prominent and distinctive voice on finance Twitter (a.k.a. FinTwit). Doomberg’s writers, who come from the world of commodities and heavy industry, deliver deeply informed, often withering analysis that focuses largely on energy policy, their area of expertise. Befitting the site’s name, they often take a darker (or perhaps just more realistic) view than many mainstream sources. Doomberg has been particularly bearish — and prescient — about the unfolding energy crisis in Europe, warning for months that the decision by European leaders to cut off Vladimir Putin from their markets after his invasion of Ukraine risked causing an economic crisis. I spoke via Zoom with one of the Doomberg writers (as represented by that green chicken) about how Russia’s oil industry has thrived despite sanctions, where Europe’s energy squeeze is headed, and why his site is, despite appearances, fundamentally optimistic.

Trend Change? Greenland Ice Mass Loss Has Been Decelerating Since 2012

by P. Gosselin, Sep 24, 2022 in NoTricksZone


We have digitized the Polar Portal’s graph of the accumulated surface mass balance and have come up with a value of 467 Gt. That’s 100 Gt or 27% above the 1981…2010 mean! Together with the melting of icebergs (assuming the value of the previous year, which was already 10% more than that of 2020 ) this results in approximately the representation below, which was included in the publication until the report 2020.

In 2021, one has probably omitted for reasons, perhaps the jump was difficult to explain by the calving of icebergs?

The total mass balance is very likely -100 Gt. An “accelerated” thawing of the Greenland ice sheet is not to be recognized. If one accumulates the mass loss, one sees the “braking” very nicely. Acceleration occurred until 2012.

Global temperature hiatus may not have ended after all, new study suggests

by Dr D. Whitehouse, Sep 23, 2022 in NetZeroWatch


The so-called hiatus in global annual average temperature between 2002 – 2014, once controversial to some but now well-established in the peer-reviewed literature, ended in 2014 with the start of a series of record-breaking El Nino events that spiked global temperature with a subsequent fall-back. Now a new study into the effect of man-made aerosol pollution adds to likely reasons for the end of the hiatus, and may point to lower estimates for future global warming.

An international research team writing in the journal Atmospheric Chemistry and Physics, uses satellite data to show that concentrations of aerosol particles have decreased significantly since 2000. This is good news as cleaner air benefits health, but it also reduces particles’ which have a cooling effect on the terrestrial climate.

According to the Intergovernmental Panel on Climate Change (IPCC), by 2019 the global temperature had risen by 1.1 degrees Celsius compared to pre-industrial levels due to increasing greenhouse gasses from burning fossil fuels. At the same time the combustion of fossil fuels emit aerosols which cool our climate by reflecting sunlight and increasing the reflectivity of clouds.

Professor Johannes Quaas, a meteorologist at Leipzig University, and colleagues from Europe, China, and the US have published robust observational evidence of significant reduction of aerosol pollution and improved global air quality.

When taken together with a couple of super-strong El Nino events which temporarily drove up global temperature (see graph below), the new findings suggest that the global warming hiatus — clearly evident prior to 2014 — may not have ended yet. If NASA’s satellite data are confirmed, it would suggest that much of the very moderate changes in global temperature this century may have been driven primarily by cleaner air and naturally-occurring El Ninos.

Global temperature changes 2000-2022. Source: Met Office/HadCRUT5

India, China Emissions Make Mockery of Western Policies

by  V. Jayaraj, Sep 23, 2022 in CO2Coalition


Amidst the European energy crisis, it’s easy to miss other events that are of significance to the discussion about the climate-change movement.

Among them are a series of setbacks to green policies in China and India.

These countries — representing three billion people — have delayed implementation of renewable energy commitments and aggressively increased the production and consumption of fossil fuels.

At the Shanghai Cooperation Organization summit, Chinese and Indian leaders — along with their counterparts from Russia and Turkey — explicitly declared that they cannot be coerced into reducing fossil fuel consumption, calling for an “increased investment in oil and gas production and exploration.”

As usual, the mainstream media neither published this news in headlines nor discussed how the proliferation of fossil fuels in these countries make the so-called net zero measures in the West irrelevant to the objectives of climate alarmists.

As the world’s second biggest coal user and home to 1.3 billion people, India has deemphasized its commitment to transitioning to renewable energy.

According to reports, the country fell significantly short of its solar-installation targets, jeopardizing its overall transition goals.

India’s Economic Times reported that at least 25 gigawatts (GW) of solar power projects that were expected to be operational or nearly complete faced delays or uncertainties.

The deferrals of solar installations now make it impossible to attain the planned addition of 450 GW in renewable capacity by 2030.

The Times says India “added 10 GW of solar capacity in 2021, while it needs to add close to 30 GW every year to be able to meet the target.”

The National Solar Mission — India’s internationally renowned solar energy strategy — is in disarray, with only half its promised capacity in place.

India considers coal plants an integral part of its energy sector.

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.

The Winter Gatekeeper Hypothesis (VII). A summary plus Q&A

by J. Vinos and A. May, Sep 22, 2022 in ClimateEtc.


“On the other hand, I think I can safely say that nobody understands climate change.” J. Vinós, paraphrasing Richard Feynman’s words about quantum mechanics.

7.1 Introduction

This plain-language summary has been written at the request of some readers of our series of articles on the Winter Gatekeeper hypothesis:

Climate is extremely complex, and people, including scientists, have a natural tendency to look for simple explanations. The Occam’s Razor principle is a good first approach but climate change cannot have a simple answer. Over the past seven years, one of the authors of this series (JV) has been laboriously reading many thousands of scientific articles and analyzing hundreds of climate datasets trying to understand how Earth’s climate changes naturally. This is a first step to understanding the human impact on climate change. The outcome of this work is the book Climate of the Past, Present and Future.” It is a graduate-student level academic book that discusses many controversial issues about natural climate change over the past 800,000 years. In this book, a new hypothesis on natural climate change is presented. It relates changes in the strength of the meridional (poleward) transport of energy with climatic changes that have taken place, both in the past and recently.

The book can be downloaded here (open access) Vinos-CPPF(2022)

How Can The Globe Be Warming When Most Of The Southern Hemisphere Isn’t?

by K. Richard, Sep 22, 2022 in NoTricksZone


New research continues to document non-warming and even “robust cooling” trends for entire regions of the Southern Hemisphere in recent decades.

Land surface temperature data compilations from the Southern Hemisphere (South America, Southwestern Andes, Tasmania, New Zealand, Australia) indicate that any warming during the 20th century occurred before 1980, with no obvious net warming since (Rezsöhazy et al., 2022).

Sea surface temperature data from the Southeastern Indian Ocean, Tasman Sea, and Great Barrier Reef region indicate no net warming since 1982 (Chapman et al., 2022).

A 2021 study reported a profound cooling trend for most of Antarctica in recent decades, with amplitudes of -2.8°C for East Antarctica and -1.68°C for West Antarctica during 1979-2018.

Natural Oceanic Cycles Behind Heavy East Australia Rains, New Study Finds

by P. Gosselin, Sep 21, 2022 in WUWT/NTZ


East Australia got hit by lots of rain in February earlier this year, and the media of course blamed it all on manmade climate change.

Now a new study by Holgate et al (2022) titled “The Impact of Interacting Climate Modes on East Australian Precipitation Moisture Sources” shows East Australia’s rains are directly tied to natural oceanic patterns.

Hat-tip: EIKE.

The paper’s abstract summarizes that east Australia precipitation is driven by multiple interacting climate modes and that the El Niño–Southern Oscillation (ENSO) modifies the supply of evaporative moisture for precipitation and that this is modulated by the Indian Ocean dipole (IOD) and southern annular mode (SAM).

Sources of moisture in eastern Australia. Source: Holgate et al, 2020

Environmentalism Is A Fundamentalist Religion Steeped In Green Dogma

by J. Kotkin, Sep 21, 2022 in ClimateChangeDispatch


Today’s climate activists resemble nothing so much as a religious movement, with carbon the new devil’s spawn.

The green movement is increasingly wedded to a kind of carbon fundamentalism that is not only not realistic but will reduce living standards in the West and around the world.

And as with other kinds of religious fundamentalism, the climate hysteria is often overwrought and obviously so; a decade ago, the same activists predicted a planetary disaster by 2020 if the U.S. and China did not reduce their emissions by 80 percent—which of course never happened. [bold, links added]

This approach is a losing one that reduces the effectiveness of the green lobby. What’s needed to combat climate change is a pragmatic approach based on adapting to real and verifiable dangers.

And this starts with environmentalists acknowledging the limits of our ability to curb emissions in the short run. This is not to cede the fight. The reality is what we do in the West means increasingly little.

Today’s biggest emitters come from China, which already emits more GHG than the U.S. and the EU combined, while the fast growth in emissions comes increasingly from developing countries like India, now the world’s third-largest emitter.

Ronald Stein on the Huge Advantages of Fossil Fuels Over Wind/Solar Power, Tom Nelson Podcast

by C. Rotter, Sep 20, 2022 in WUWT


Ronald Stein, P.E. is an engineer and Founder of PTS Advance, drawing upon decades of project management and business development experiences. He is an internationally published columnist, energy expert, and Pulitzer Prize nominated author who writes frequently about all aspects of energy and economics and is a Policy Advisor for The Heartland Institute.

More about Stein: https://www.heartland.org/about-us/wh…
Stein’s website: https://energyliteracy.net/
Twitter: https://twitter.com/PTSFounder

Tom Nelson’s Twitter: https://twitter.com/tan123
Substack: https://tomn.substack.com/
About Tom: https://tomnelson.blogspot.com/2022/0…
Notes for climate skeptics:
https://tomnelson.blogspot.com/2019/0…
ClimateGate emails:
https://tomnelson.blogspot.com/p/clim…

Does this explode the great global warming myth?

by P. Homewood, Sep 21, 20022 in NotaLotofPeopleKnowThat


THE ‘greenhouse effect’ has been with us for so long that it is taken as ‘settled’ science in most quarters. However, as a new paper shows, there is much still to debate.

The author, William Kininmonth, is no bedroom blogger. As a former head of Australia’s National Climate Centre, he deserves careful and respectful attention.

Kininmonth’s suggestion is that the approach of the UN’s  Intergovernmental Panel on Climate Change (IPCC), based on a concept of radiation forcing at the top of the atmosphere, is logically unsound and ignores important details about what happens at the Earth’s surface. In particular, he notes that there are huge flows of energy – vastly bigger than the effect of greenhouse gases – from the warm tropical oceans to the atmosphere, whence it is transported poleward by the winds, warming the northern latitudes.

Read the full story here.

Press Release: Important new paper challenges IPCC’s claims about climate sensitivity

by P. Homewood, Sep 20, 2022 in NotaLotofPeopleKnowThat


London, 20 September – A new paper reduces the estimate of climate sensitivity – the amount of warming expected for a doubling of carbon dioxide concentrations – by one third. The results therefore suggest that future global warming will be much less than expected.
The paper, by independent scientist Nic Lewis, has just appeared in the journal Climate Dynamics. It is an important challenge to the official view of the Intergovernmental Panel on Climate Change (IPCC).
Lewis has critiqued a 2020 assessment of climate sensitivity by Sherwood et al., which strongly influenced the IPCC’s Sixth Assessment Report, in 2021. Lewis commented:
“It is unfortunate that Sherwood et al.’s assessment of climate sensitivity, which underpinned the UN Framework Convention on Climate Change, contained such serious errors, inconsistencies and deficiencies in its methods”.
After correcting the Sherwood et al. methods and revising key input data to reflect, primarily, more recent evidence, the central estimate for climate sensitivity comes down from 3.1°C per doubling of CO2 concentration in the original study to 2.16°C in the new paper.
This large reduction shows how sensitive climate sensitivity estimates still are to input assumptions, and that values between 1.5°C and 2°C remain quite plausible.

  • Climate sensitivity represents the long-term global temperature increase caused by a doubling of atmospheric CO2 concentration. There are different measures of climate sensitivity. Both the Sherwood and Lewis papers estimate the so-called ‘effective’ climate sensitivity, which reflects a new equilibrium state projected from centennial changes after a doubling of the CO2 concentration. This measure is considered the most relevant one for predicting climate change in the coming two centuries.
  • Climate sensitivity has always been a very important, but also highly uncertain, parameter in the climate change discourse. Earlier IPCC reports assessed its value as likely to be somewhere between 1.5°C and 4.5°C, with a best estimate of 3°C. However, prompted by the Sherwood paper, the 2021 Sixth Assessment Report moved that range upwards, to 2.5 to 4°C. Although for outsiders this might sound boring, for insiders it was a revolutionary change.
  • Lewis’s corrections and revisions lead to a likely range of 1.75 to 2.7°C, which is not only lower but is also much less uncertain than either the 2021 official IPCC assessment or the very similar Sherwood et al. estimate (2.6 to 3.9°C).
  • Nic Lewis is the lead or sole author of ten peer-reviewed papers on climate sensitivity. He was a participant in the 2015 workshop that kicked off the World Climate Research Programme project that led to the Sherwood et al. 2020 paper, but he was not a co-author of that paper.

Lewis commented:
“The substantial reduction in assessed climate sensitivity upon updating key input data suggests that the increase in the bottom of the climate sensitivity range in the IPCC Sixth Assessment Report was unjustified”.
Lewis’s paper is entitled ‘Objectively combining climate sensitivity evidence’. It can be freely downloaded here. A detailed explanatory article about the paper is available here.

Emissions from Australia’s oil and gas industry rose 20% in first five years of safeguard mechanism

by A. Norton, Sep 20, 2022 in The Guardian


 

 

Report: The Earth Has A Changing Climate, Not A Climate Crisis

by W. Manheimer, Sep 19, 2022 in ClimateChangeDispatch


The following excerpt is taken from:

Journal of Sustainable Development; Vol. 15, No. 5; 2022
ISSN 1913-9063 E-ISSN 1913-9071
Published by the Canadian Center of Science and Education

Abstract
The emphasis on a false climate crisis is becoming a tragedy for modern civilization, which depends on reliable, economic, and environmentally viable energy. [bold, links added]

The windmills, solar panels, and backup batteries have none of these qualities. This falsehood is pushed by a powerful lobby which Bjorn Lomborg has called a climate industrial complex, comprising some scientists, most media, industrialists, and legislators.

It has somehow managed to convince many that CO2 in the atmosphere, a gas necessary for life on earth, one which we exhale with every breath, is an environmental poison. Multiple scientific theories and measurements show that there is no climate crisis.

Radiation forcing calculations by both skeptics and believers show that the carbon dioxide radiation forcing is about 0.3% of the incident radiation, far less than other effects on climate.

Over the period of human civilization, the temperature has oscillated between quite a few warm and cold periods, with many of the warm periods being warmer than today.

During geological times, it and the carbon dioxide levels have been all over the place with no correlation between them.

Good News: 2022 Hurricane Season Mild. Bad News: Pressure Pattern Threatens Europe with Hell Winter

by P. Gosselin, Sep 19, 2022 in WUWT


This year’s hurricane season has been unusually quiet. The USA has gotten off easy so far in terms of landfalls and damage, thus once again contradicting all the doomsday scenarios from the climate alarmists.

Mid September is usually the peak of hurricane activity. But right now it’s quiet and there are no threats to the US mainland – for the time being. Here’s the latest update from the National Hurricane Center (NHC):

Potential killer winter on top of acute energy crisis

On another subject, some forecasters have been projecting a milder than normal winter for Europe, which would be welcome with a red carpet due to the continent’s acute energy crisis.

However, Joe notes there are signs this may not be the case. That would mean the coming winter could become – in the current dire energy situation – the Mother of Nightmares: a bitter cold winter with energy outages. In the event of blackouts, which many experts warn have a high chance of occurring, Europe would then be facing a humanitarian and economic crisis on a scale not seen in a very long time.

“Look at what the surface maps are showing,” Bastardi says. “When you have high pressure over Greenland and Iceland, and low pressure over Spain like that, folks, that is an ugly looking situation for the winter. That is similar to 2010/11.”

CMIP6 GCM ensemble members versus global surface temperatures

by N. Scafetta, Sep 18, 2022 in Springer


Abstract

The Coupled Model Intercomparison Project (phase 6) (CMIP6) global circulation models (GCMs) predict equilibrium climate sensitivity (ECS) values ranging between 1.8 and 5.7 C. To narrow this range, we group 38 GCMs into low, medium and high ECS subgroups and test their accuracy and precision in hindcasting the mean global surface warming observed from 1980–1990 to 2011–2021 in the ERA5-T2m, HadCRUT5, GISTEMP v4, and NOAAGlobTemp v5 global surface temperature records. We also compare the GCM hindcasts to the satellite-based UAH-MSU v6 lower troposphere global temperature record. We use 143 GCM ensemble averaged simulations under four slightly different forcing conditions, 688 GCM member simulations, and Monte Carlo modeling of the internal variability of the GCMs under three different model accuracy requirements. We found that the medium and high-ECS GCMs run too hot up to over 95% and 97% of cases, respectively. The low ECS GCM group agrees best with the warming values obtained from the surface temperature records, ranging between 0.52 and 0.58 C. However, when comparing the observed and GCM hindcasted warming on land and ocean regions, the surface-based temperature records appear to exhibit a significant warming bias. Furthermore, if the satellite-based UAH-MSU-lt record is accurate, actual surface warming from 1980 to 2021 may have been around 0.40 C (or less), that is up to about 30% less than what is reported by the surface-based temperature records. The latter situation implies that even the low-ECS models would have produced excessive warming from 1980 to 2021. These results suggest that the actual ECS may be relatively low, i.e. lower than 3 C or even less than 2 C if the 1980–2021 global surface temperature records contain spurious warming, as some alternative studies have already suggested. Therefore, the projected global climate warming over the next few decades could be moderate and probably not particularly alarming.

Cost Of the Green Energy Transition: Who You Gonna Believe, Some Research Assistants from Oxford or Your Lyin’ Eyes?

by F. Menton, Sep 19, 2022 in WUWT


Over in Europe, and particularly in those countries in the vanguard of the green energy transition, the enormous costs of this folly have begun to hit home. In the UK, average annual consumer energy bills were scheduled to rise as of October 1 to £3549/year, from only £1138/year just a year ago. (The figure may now get reduced somewhat by means of massive government subsidies, which only conceal, but do not obviate, the disastrous cost increases.) Germany’s regulated consumer gas bills are scheduled for an average annual increase on October 1 of about 480 euros, about 13%, from an already high 3568 euros.

Anyone with a pair of eyes can see what has happened. They thought they could get rid of fossil fuels just by building lots of wind turbines and solar panels, which don’t work most of the time. Then they suppressed fossil fuel production, because that is the virtuous thing to do. Somehow they lost track of the fact that they needed full backup for the wind and sun, and have no alternative to the suppressed fossil fuels. With supply of fossil fuels intentionally and artificially constrained, prices spiked.

And they have not even yet gotten to 50% of electricity, or 15% of final energy consumption, from wind/sun on an annualized basis.

Is anybody learning a lesson here? Doubtful.

Climate Emergency Not Supported by Data, Say Four Leading Italian Scientists

by C. Morrison, Sep 14, 2022 in DailySkeptic


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”. 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 is 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, agrometeorologist 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 liberation from the “naïve belief in immature climate models”. In future, it says, “climate research must give significantly more emphasis to empirical science”.

Air conditioning has a climate problem. New technology could help.

by S. Osaka, Sep 12, 2022 in TheWashingtonPost


Last week, Californians got a reminder of one of the most vexing paradoxes of global warming. With temperatures well over 110 degrees Fahrenheit in some regions on Tuesday night, hundreds of thousands of the state’s residents received beeping text alerts to notify them that the power grid, straining under the weight of millions of air-conditioning units, was about to collapse. Save power now, the text warned, or face rolling blackouts.

Consumers conserved, and the state’s electricity grid made it out of a record-breaking hot day relatively unscathed. Still, as temperatures rise worldwide, more people are going to need to install air conditioners. Butas currently sold, AC units can actually make global warming worse: On hot days, they suck tons of electricity from the grid, and their chemical refrigerants can accelerate global warming.

This is why researchers and start-ups are hoping to create new, cutting-edge AC units. AC technology has seen only “incremental improvements over the past 100 years,” said Ankit Kalanki, a manager at Third Derivative, a climate tech accelerator co-founded by the energy think tank RMI. “There has not been a step change in innovation.”

Rethinking The Greenhouse Effect

by P. Homewood, Sep 16, 2022 in NotaLotofPeopleKnowThat


London, 16 September – A former head of Australia’s National Climate Centre is arguing that the Intergovernmental Panel on Climate Change (IPCC) has adopted an overly simplistic approach to global warming and has ended up exaggerating the human contribution to recent climate change.
William Kininmonth argues that the warming of the planet is fastest in winter and in high latitudes near the poles. He argues that this is mostly due to increased heat transport from the tropical oceans.
However, the recent warming of the tropical oceans can’t be explained by the greenhouse effect due to carbon dioxide, because that effect is small in the humid tropical atmosphere. The most probable explanation is natural changes in ocean currents.
William Kininmonth says:
“The IPCC’s radiation balance approach is very simplistic, ignoring the fact that nowhere on the Earth’s surface is in radiation balance. Mainstream climate science may have led us all up a blind alley”.
GWPF invited the Royal Society and the Met Office to review this paper, and to submit a response to be published as an appendix to it. No reply was received.


William Kininmonth: Rethinking the Greenhouse Effect (pdf)

Exposing The ‘97% Of Scientists Agree With Man-made Global Warming’ Lie

by D. Craig, Sep 15, 2022 in ClimateChangeDispatch


 

The main author of the paper who came up with the figure was John Cook, an Australian former web programmer and blogger who later gained a Ph.D. in philosophy at the University of Western Australia and founded what could be seen as a climate alarmist website.

He assembled a group of volunteers recruited via the website as part of a ‘citizen science’ project and tasked them with examining the abstracts of 11,944 climate papers from 1991-2011 matching the topics ‘global climate change’ or ‘global warming’.

Note that the volunteers didn’t speak to any scientists and didn’t read the scientific papers. They just looked at the abstracts – a summary paragraph or two.

The volunteers classified the abstracts into one of seven categories according to their opinions of Anthropogenic Global Warming (AGW):

  1. Explicit endorsement of AGW with quantification
  2. Explicit endorsement of AGW without quantification
  3. Implicit endorsement of AGW
  4. No position or Uncertain
  5. Implicit rejection of AGW
  6. Explicit rejection of AGW without quantification
  7. Explicit rejection of AGW with quantification

The reviewers then ‘simplified’ results into four main categories as follows:

Climate Hysteria: A Mass Delusion To Demonize Carbon Dioxide

by J. Corsi, Sep 14 , 2022 in ClimateChangeDispartch


Climate hysterics like to throw around the world “denier” to castigate those who don’t get with the green agenda.

The term is deliberately intended to echo the phrase “Holocaust denier” to those anti-Semites who like to insist that the Holocaust never happened. [bold, links added]

While the comparison is obscene, it’s certainly true that the Holocaust, like the climate agenda, have something in common: They both reflect a blind fanaticism untethered to actual facts.

Climate hysterics demonize carbon dioxide (CO2) much as Hitler stereotyped Jews. They then demonize their critics as “Holocaust deniers” because the psychological link is to demonize critics of the anthropogenic theory as if they were Jew-haters.

However, the term “climate deniers” outside the context of Holocaust denial makes no sense. No rational person would deny that this planet has an atmosphere, weather, and climate.

But honestly, it is climate hysterics who hate their critics, seeing them as “evil,” greedy, hydrocarbon-burning capitalists willing to make Earth’s climate unbearably hot and dangerous for all living things.

La géologie, une science plus que passionnante … et diverse