by E. Worall, Sep 14, 2022 in WUWT
COP27 will be unusually quiet, because the local protestors who usually show up to such events will likely all be in jail.
by E. Worall, Sep 14, 2022 in WUWT
COP27 will be unusually quiet, because the local protestors who usually show up to such events will likely all be in jail.
by WJS Editorial Board, Sep 13, 2022 in ClimateChangeDispatch
An unspoken truth of the climate-change crusade is this: Anything the U.S. does to reduce emissions won’t matter much to global temperatures.
U.S. cuts will be swamped by the increases in India, Africa, and especially China. Look no further than China’s boom in new coal-fired electricity.
Under the nonbinding 2015 Paris climate agreement, China can increase its emissions until 2030. And is it ever. [bold, links added]
Between 2015 and 2021, China’s emissions increased by some 11%, according to the Climate Action Tracker, which evaluates nationally determined contributions under the Paris agreement.
The U.S. has reduced its emissions by some 6% between 2015 and 2021. Beijing made minimal new commitments at last year’s Glasgow confab on climate, despite world pressure.
S&P Global Commodity Insights recently estimated that China is planning or building coal-fired power plants with a total capacity of at least 100 gigawatts. Those are merely the projects whose development status is confirmed, so the real number is almost certainly higher.
The total U.S. power capacity is some 1,147 gigawatts. One gigawatt is enough energy to power as many as 770,000 homes.
The nonprofit Global Energy Monitor tracks coal-fired power projects worldwide of 30 megawatts or more, including those planned for the long-term.
It estimates that, as of July 2022, China had some 258 coal-fired power stations—or some 515 individual units—proposed, permitted, or under construction. If completed, they would generate some 290 gigawatts, more than 60% of the world’s total coal capacity under development.
Global Energy Monitor also reports that as of July China had 174 new coal mines or coal-mine expansions proposed, permitted, or under construction that when complete would produce 596 million metric tonnes per year.
by C. Morrison, Sep 13, 2022 in ClimateChangeDispatch
The Arctic has been a happy hunting ground for the climate scaremonger Sir David Attenborough. Two years ago he made the fanciful claim that polar bears could die out in the 2030s.
It is now generally accepted that polar bears have been thriving and increasing in numbers, and in his latest BBC documentary Frozen Planet II, Attenborough makes no mention of his previous claim. [bold, links added]
But he does make the astonishing suggestion that all the summer sea ice in the Arctic could be gone within 12 years.
Unfortunately, such predictions are now out of date. Summer sea ice hit a low in 2012 and has been steadily recovering ever since.
According to the latest data from the US-based National Snow and Ice Data Center (NSIDC) for the end of August, “Sea ice extent is likely to remain higher than in recent years.”
The evidence is shown in the graph below.
As can be clearly seen, the 2022 blue line is well above the 2012 low point. According to the NSIDC, the average sea ice extent for August ranked 13th lowest in the recent satellite record.
by P. Homewood, Sep 13, 022 in ClimateChange Dispatch
For weeks we have been told that this year’s warm summer is due to climate change.
The BBC’s Justin Rowlatt was quite clear: ‘We know what is behind this – greenhouse gas emissions caused by our burning of fossil fuels like coal and gas,’ a message amplified across the media and stoked by the Met Office, who delighted in their red warnings and public health alerts. [bold, links added]
It was not only the heat. The Met Office claimed that this summer’s drought is a harbinger of the future we could expect, ably assisted by fraudulently misleading images of ‘dried up reservoirs’ on BBC News.
As many of us suspected all along, the summer of 2022 was not a record breaker at all, as it was much hotter in 1976, as the Central England Temperature Series makes clear:
Indeed it was hotter in 1826 and 2018, and this summer was no hotter than in 1995 and 2006.
by University of Illinois Chicago, Sep 9, 2022 in ScienceDaily
A team of researchers led by Meenesh Singh at University of Illinois Chicago has discovered a way to convert 100% of carbon dioxide captured from industrial exhaust into ethylene, a key building block for plastic products.
Their findings are published in Cell Reports Physical Science.
While researchers have been exploring the possibility of converting carbon dioxide to ethylene for more than a decade, the UIC team’s approach is the first to achieve nearly 100% utilization of carbon dioxide to produce hydrocarbons. Their system uses electrolysis to transform captured carbon dioxide gas into high purity ethylene, with other carbon-based fuels and oxygen as byproducts.
The process can convert up to 6 metric tons of carbon dioxide into 1 metric ton of ethylene, recycling almost all carbon dioxide captured. Because the system runs on electricity, the use of renewable energy can make the process carbon negative.
by E. Worrall, Sep 12, 2022 in WUWT
Is anyone else fed up with us approaching but never actually crossing all those dangerous tipping points?
World on brink of five ‘disastrous’ climate tipping points, study finds
Giant ice sheets, ocean currents and permafrost regions may already have passed point of irreversible change
The climate crisis has driven the world to the brink of multiple “disastrous” tipping points, according to a major study.
It shows five dangerous tipping points may already have been passed due to the 1.1C of global heating caused by humanity to date.
These include the collapse of Greenland’s ice cap, eventually producing a huge sea level rise, the collapse of a key current in the north Atlantic, disrupting rain upon which billions of people depend for food, and an abrupt melting of carbon-rich permafrost.
At 1.5C of heating, the minimum rise now expected, four of the five tipping points move from being possible to likely, the analysis said. Also at 1.5C, an additional five tipping points become possible, including changes to vast northern forests and the loss of almost all mountain glaciers.
In total, the researchers found evidence for 16 tipping points, with the final six requiring global heating of at least 2C to be triggered, according to the scientists’ estimations. The tipping points would take effect on timescales varying from a few years to centuries.
The abstract of the study;
Exceeding 1.5°C global warming could trigger multiple climate tipping points
David I. Armstrong McKay* https://orcid.org/0000-0002-0020-7461 firstname.lastname@example.org
Arie Staal https://orcid.org/0000-0001-5409-1436
Jesse F. Abrams https://orcid.org/0000-0003-0411-8519
Ricarda Winkelmann https://orcid.org/0000-0003-1248-3217
Boris Sakschewski https://orcid.org/0000-0002-7230-9723
Sina Loriani https://orcid.org/0000-0001-6660-960X
Ingo Fetzer https://orcid.org/0000-0001-7335-5679
Sarah E. Cornell https://orcid.org/0000-0003-4367-1296
Timothy M. Lenton* https://orcid.org/0000-0002-6725-7498 email@example.com
9 Sep 2022
Vol 377, Issue 6611
Climate tipping points occur when change in a part of the climate system becomes self-perpetuating beyond a warming threshold, leading to substantial Earth system impacts. Synthesizing paleoclimate, observational, and model-based studies, we provide a revised shortlist of global “core” tipping elements and regional “impact” tipping elements and their temperature thresholds. Current global warming of ~1.1°C above preindustrial temperatures already lies within the lower end of some tipping point uncertainty ranges. Several tipping points may be triggered in the Paris Agreement range of 1.5 to <2°C global warming, with many more likely at the 2 to 3°C of warming expected on current policy trajectories. This strengthens the evidence base for urgent action to mitigate climate change and to develop improved tipping point risk assessment, early warning capability, and adaptation strategies.
Read more (paywalled): https://www.science.org/doi/10.1126/science.abn7950
Unfortunately the study is paywalled, so I can’t tell you the timeframe of these alleged tipping points. Not that the predicted dates matter that much – in my experience, tipping point predictions are usually quietly ignored or deleted when the deadline expires.
by B.R. Scanlon et al., Jan 22, 2018 in PNAS
SignificanceWe increasingly rely on global models to project impacts of humans and climate on water resources. How reliable are these models? While past model intercomparison projects focused on water fluxes, we provide here the first comprehensive comparison of land total water storage trends from seven global models to trends from Gravity Recovery and Climate Experiment (GRACE) satellites, which have been likened to giant weighing scales in the sky. The models underestimate the large decadal (2002–2014) trends in water storage relative to GRACE satellites, both decreasing trends related to human intervention and climate and increasing trends related primarily to climate variations. The poor agreement between models and GRACE underscores the challenges remaining for global models to capture human or climate impacts on global water storage trends.
AbstractAssessing reliability of global models is critical because of increasing reliance on these models to address past and projected future climate and human stresses on global water resources. Here, we evaluate model reliability based on a comprehensive comparison of decadal trends (2002–2014) in land water storage from seven global models (WGHM, PCR-GLOBWB, GLDAS NOAH, MOSAIC, VIC, CLM, and CLSM) to trends from three Gravity Recovery and Climate Experiment (GRACE) satellite solutions in 186 river basins (∼60% of global land area). Medians of modeled basin water storage trends greatly underestimate GRACE-derived large decreasing (≤−0.5 km3/y) and increasing (≥0.5 km3/y) trends. Decreasing trends from GRACE are mostly related to human use (irrigation) and climate variations, whereas increasing trends reflect climate variations. For example, in the Amazon, GRACE estimates a large increasing trend of ∼43 km3/y, whereas most models estimate decreasing trends (−71 to 11 km3/y). Land water storage trends, summed over all basins, are positive for GRACE (∼71–82 km3/y) but negative for models (−450 to −12 km3/y), contributing opposing trends to global mean sea level change. Impacts of climate forcing on decadal land water storage trends exceed those of modeled human intervention by about a factor of 2. The model-GRACE comparison highlights potential areas of future model development, particularly simulated water storage. The inability of models to capture large decadal water storage trends based on GRACE indicates that model projections of climate and human-induced water storage changes may be underestimated.……
by W. Baerbel and J. Cook, Sep 9, 2022 in SkepticalScience
False balance media reporting
One of the most insidious, albeit often inadvertent forms of climate misinformation is false-balance media coverage, where contrarian voices are given equal coverage with climatescientists. This stems from the journalistic norm assuming there are always two sides to an issue, thus giving mainstream and contrarian voices equal representation. As a result, a few dissenting scientists are given similar attention to the 97% of scientists who are convinced that humans are causing global warming.
Analysis of media coverage from 1988 to 2002 showed that newspapers often presented false balance media coverage of climate change . While the situation has improved in prestige-press coverage , the tabloid press has shown no signs of improvement . Similarly, 70% of U.S. TV coverage of climate change presents a false balance . In short, much of what people learn about climate change from the media involves well-established scientific truth presented alongside groundless assertions.
To debate or not to debate
Debate is crucially important to climate science and in the case of human-caused climate change has already occurred over decades. The process of scientific debate is open to anyone—although it does require that participants subject their ideas to the scrutiny of the peer-review process, which is fundamental for the advancement of scientific knowledge . However, contrarians refuse to participate in scientific debates: they do not present their views at scientific conferences, and have a negligible presence in the peer-reviewed literature. Instead, they demand special treatment by bypassing the usual scientific process and presenting unvetted ideas to the public.
How should one respond if invited to publicly debate mainstream climate science? Requests to “debate” climate science or the timing of climate impacts are for propaganda purposes and should be avoided. Agreeing to participate in such debates run the risk of misinforming the public by conveying the false impression that the scientific community is undecided on basic facts like human-caused global warming.
In contrast, debates over solutions to climate change are worthwhile. One response to an invitation to debate is to inform the organisers of the danger of misinforming the public by debating established science, and that a more appropriate and constructive debate topic is climate solutions. If the organisers persist in hosting a problematic debate, a further option is to issue a public statement explaining that you had advised the organisers not to go ahead due to the problematic nature of the event, but they went ahead regardless.
by W. Röst, Sep 9, 2022 in WUWT
The Earth’s greenhouse effect is much larger than suggested so far. If surface radiation and the greenhouse effect set surface temperatures, our oceans would be boiling. Fortunately, they don’t. Water Earth has a strong water-vapor-based evaporative surface cooling mechanism that effectively sets and stabilizes surface temperatures at a much lower level than cooling by surface radiation emissions can do. Thanks to water vapor our temperature system is far more stable than admitted by the consensus, and thanks to water, water vapor, and clouds surface temperatures are favorable for present life.
Early Earth consisted of hot molten lava covered by an extreme greenhouse atmosphere: hardly any surface radiation could reach space, if any. Nevertheless, its surface cooled. Upward convection brought sensible and latent heat from hot surfaces to elevations on the very edge of the atmosphere from where energy effectively could be radiated into space. Despite the near maximal greenhouse effect the surface of Early Earth cooled down and at a certain moment the first oceans developed. Those boiling oceans still resulted in a huge upward convective transport of energy, further cooling the surface. Until now, convective upward transport of energy plays the main role in surface cooling. Convection sets and regulates surface temperatures at actual level. Without evaporative-convective-cloud-cooling, our actual greenhouse atmosphere would theoretically result in a surface temperature of 202.3°C. On the real Earth the greenhouse effect warms the surface, but greenhouse warming does not set and control final surface temperatures. Earth’s H2O-based cooling system does.
Theoretical greenhouse effect
The Earth’s greenhouse effect is huge, much higher than normally assumed. If cooled by ‘surface radiation only’ the surface of a theoretical planet would have had a surface temperature of 202.3°C. But the Earth’s surface temperatures are not set by the strength of Earth’s greenhouse effect. Additional H2O-based cooling systems keep the surface at a much lower temperature, balancing rising surface radiation uptake. At present, that balance is reached at a yearly average of 15 degrees Celsius.
Thanks to H2O-related surface cooling the Earth’s surface temperatures are bound to a narrow range, at a temperature level well suited for life on Earth. Due to its stability, life developed over many hundreds of millions of years.
Temperature regulates the cooling system; the cooling system regulates temperature.
by A. Macaskill and P. Sandle, Sep 8, 2022 in ClimateChangeDispatch
Britain appointed lawmaker Jacob Rees-Mogg, who has expressed skepticism about the need to fight ‘climate change’ as the new business secretary, raising concerns that he could delay the target of reducing net zero emissions by 2050.
Rees-Mogg, nicknamed “the honorable gentleman from the 18th century” because of his poshness and trademark double-breasted suit, was on Tuesday put in charge of the Department for Business, Energy and Industrial Strategy, which is responsible for the government’s strategy on ‘climate change’. [bold, links added]
In the past, Rees-Mogg has expressed concerns about “climate alarmism“, said humanity should adapt to, rather than mitigate, ‘climate change’, and warned that the drive to getting to net zero emissions is responsible for high energy prices.
After his appointment, Rees Mogg said his priority would be to provide help for people dealing with sharply higher energy bills and that the government will soon bring forward a package to help the public.
New Prime Minister Liz Truss has backed the legally binding target of reducing net zero ‘greenhouse gas’ emissions by the middle of this century, but has supported scrapping green levies and bringing back fracking if there is local support.
One contentious issue facing Rees-Mogg is providing a clear and settled policy environment for business after successive Conservative governments have produced energy and industrial strategies that were abandoned just a few years later.
Patrick Moore [pictured], one of the founders of Greenpeace, said in an email obtained by The Epoch Times that his reasons for leaving Greenpeace were very clear: “Greenpeace was ‘hijacked’ by the political left when they realized there was money and power in the environmental movement.
[Left-leaning] political activists in North America and Europe changed Greenpeace from a science-based organization to a political fundraising organization,” Moore said. [bold, links added]
Moore left Greenpeace in 1986, 15 years after he co-founded the organization.
“The ‘environmental’ movement has become more of a political movement than an environmental movement,” he said. “They are primarily focused on creating narratives, stories, that are designed to instill fear and guilt into the public so the public will send them money.”
He said they mainly operate behind closed doors with other political operatives at the U.N., World Economic Forum, and so on, all of which are primarily political in nature.
The Intergovernmental Panel on Climate Change [IPCC] is “not a science organization,” he said. “It is a political organization composed of the World Meteorological Organization and the United Nations Environment Program.”
“The IPCC hires ‘scientists’ to provide them with ‘information’ that supports the ‘climate emergency’ narrative.”
Their campaigns against fossil fuels, nuclear energy, CO2, plastic, etc., are misguided and designed to make people think the world will come to an end unless we cripple our civilization and destroy our economy. They are now a negative influence on the future of both the environment and human civilization.”
“Today, the left has adopted many policies that would be very destructive to civilization as they are not technically achievable. Only look at the looming energy crisis in Europe and the UK, which Putin is taking advantage of. But it is of their own making in refusing to develop their own natural gas resources, opposing nuclear energy, and adopting an impossible position on fossil fuels in general,” Moore wrote.
The Left ‘Hijacked’ Greenpeace
by D. Godefridi, Sept 8, 2022 in GatestoneInstitue
- In 2011, the German Baltic Sea Nature Conservation Foundation was established as a result of an agreement between three of Germany’s leading environmental organizations – WWF, BUND and NABU – and the company Nord Stream, which is a subsidiary of the government of Vladimir Putin.
- These environmental organizations were, moreover, at the same time fiercely opposed to German civil nuclear power, to the exploitation of shale gas in Europe and to the import of American gas via the construction of liquefied petroleum gas terminals in Germany.
- Those were three issues where the views of the environmental organizations were totally congruent with those of the Russian Federation. This meant betting everything on “red” — as in a casino — but in this instance, on Russian gas.
- Right after these contractual commitments by Nord Stream AG, the environmental organizations withdrew the lawsuit they had initiated against Nord Stream…
- The German press reported last month that, inspired by the success of the first foundation, the same State of Mecklenberg-Western Pomerania was setting up a new foundation as recently as January 2021, the Mecklenberg-Western Pomerania Foundation for Climate and Environmental Protection, this time endowed with 192 million euros from the Russian government.
by D.A. Nelson et al. , Sept 7, 2022 in NatureCommunications
The Early Jurassic Butcher Ridge Igneous Complex (BRIC) in the Transantarctic Mountains contains abundant and variably hydrated silicic glass which has the potential to preserve a rich paleoclimate record. Here we present Fourier Transform Infrared Spectroscopic data that indicates BRIC glasses contain up to ~8 wt.% molecular water (H2Om), and low (<0.8 wt.%) hydroxyl (OH) component, interpreted as evidence for secondary hydration by meteoric water. BRIC glasses contain the most depleted hydrogen isotopes yet measured in terrestrial rocks, down to δD = −325 ‰. In situ 40Ar/39Ar geochronology of hydrated glasses with ultra-depleted δD values yield ages from 105 Ma to 72 Ma with a peak at c. 91.4 Ma. Combined, these data suggest hydration of BRIC glasses by polar glacial ice and melt water during the Late Cretaceous, contradicting paleoclimate reconstructions of this period that suggest Antarctica was ice-free and part of a global hot greenhouse.
by K. Richard, Sept 8, 2022 in NoTricksZone
The accuracy of the long-term global instrumental temperature record – especially the data obtained before the 1970s – wholly rests on the assumption that sailors obtained precisely reliable temperature measurements as they pulled wooden or canvas buckets out of the water from ships at random depths, locations, and times of day. They didn’t.
It has long been known that pulling a bucket out of the water from a ship is rooted in serious error, rendering the sea surface temperature (SST) data obtained nearly useless. Ashford (1948) summarized some of the more salient reliability problems with this method of measurement.
• The initial temperature of the bucket is generally different from that of the sea.
• The water in the bucket may change its temperature before the reading is taken owing to the processes of heat exchange and evaporation.
• The initial temperature of the thermometer is generally different from that of the sample.
• The thermometer is liable to scale errors.
• Owing to thermal lag, the thermometer may take an appreciable time to indicate the true temperature of the sample.
• If the thermometer is removed from the bucket when taking the reading, it may no longer indicate the true water temperature.
• The temperature may be read incorrectly.
by K. Richard, Sept 5, 2022 in NoTricksZone
Abundant polar bear remains dating to 8000 to 9000 years ago have been found on Zhokhov Island, which is today surrounded by year-round sea ice (even in summer). This Arctic latitude (76°N) is too cold and thus too ice-covered for polar bears to inhabit today.
During the Early Holocene CO2 concentrations ranged between 255 to 265 ppm, and yet the Arctic was 5-7°C warmer than it is today and many regions that are now sea ice-covered were sea ice-free.
For example, Zhokhov Island is tundra and treeless today. It’s surrounded by permanent sea ice, making it inaccessible to wildlife.
by A. Flis, Aug 29, 2022 in SevereWeatherEurope
Strong cold anomalies are being detected in the stratosphere over Southern Hemisphere. The anomalous cooling results from the water vapor coming from the January Hunga Tonga eruption. Cooling on this scale has not been seen in modern satellite records, so this is a significant event.
We will look at what is happening with temperatures in the southern stratosphere, how it all actually happened, and how it might impact our side of the planet in the upcoming Winter 2022/2023.
by W. Soon, April 11, 2022 in CeresScience
On April 11, 2022, CERES team-leader, Dr. Willie Soon’s gave a presentation in Washington D.C., “The Weaponization of Science: Politics, Vilification, and the Climate Debate”. The slides for the talk can be downloaded from https://tinyurl.com/49sbxhru.
Here are 7 short clips taken from the talk describing each of the main topics he covered. The clips are as follows:
Is Dr. Willie Soon in the pay of the fossil fuel industry? (9:28 minutes)
Why Greenpeace is looking for a piece of your green (6:10 minutes)
Why “97% consensus on climate change” claims are wrong (3:29 minutes)
Are the UN’s IPCC climate reports scientifically objective? (6:52 minutes)
The “hockey stick” debate: Was there a Medieval Warm Period? (9:21 minutes)
How much of a role does the Sun play in climate change? (3:33 minutes)
Are “fact checks” checking facts or checking narratives? (2:47 minutes)
We think that these clips answer many of the commonly asked questions about both (1) the politicization of climate science and (2) the causes of climate change. Please feel free to subscribe to our new YouTube channel, share any of the above videos you think are interesting, or even share this post linking to all of them.
For convenience, we have embedded all 7 clips below:
by Bo Winegard, Aug 28, 2022 in Quilette
A once-respected journal has announced that it will be subordinating science to ideology.
And science, we should insist, better than any other discipline, can hold up to its students and followers an ideal of patient devotion to the search for objective truth, with vision unclouded by personal or political motive.
~Sir Henry Hallett Dale
Although the modern prestige bestowed upon science is laudable, it is not without peril. For as the ideological value of science increases, so too does the threat to its objectivity. Slogans and hashtags can quickly politicize science, and scientists can be tempted to subordinate the pursuit of the truth to moral or political ends as they become aware of their own prodigious social importance. Inconvenient data can be suppressed or hidden and inconvenient research can be quashed. This is especially true when one political tribe or faction enjoys disproportionate influence in academia—its members can disfigure science (often unconsciously) to support their own ideological preferences. This is how science becomes more like propaganda than empiricism, and academia becomes more like a partisan media organization than an impartial institution.
An editorial in Nature Human Behavior provides the most recent indication of just how bad things are becoming. It begins, like so many essays of its kind, by announcing that, “Although academic freedom is fundamental, it is not unbounded.” When the invocation of a fundamental freedom in one clause is immediately undermined in the next, we should be skeptical of whatever follows. But in this case, the authors are taking issue with a view very few people actually hold. At minimum, most academics will readily accept that scientific curiosity should be constrained by ethical concerns about research participants.
by A. Watts, Aug 29, 2022 in ClimateChangeDispatch
Back in May, many media outlets ran with this headline courtesy of a press release from NOAA:
NOAA predicts above-normal 2022 Atlantic Hurricane Season
Media outlets like Houston Public Media trumpeted it as if it was fact, saying: [bold, links added]
The National Oceanic and Atmospheric Administration (NOAA) released its 2022 Atlantic Hurricane Forecast, predicting an “above normal” hurricane season.
NOAA says there is a 70% chance of 14-21 storms forming, with as many as ten potentially becoming hurricanes. Three to six of these storms could become major hurricanes.
by K. Richard, Aug 29, 2022 in NoTricksZone
A new study details how a much warmer climate than today led to the disappearance of glaciers and ice caps during the sub-300 ppm CO2 Early to Middle Holocene. The Arctic’s modern ice extent is among the largest of the last 10,000 years.
Glaciologists Larocca and Axford (2022) have synthesized a comprehensive record of Arctic-wide glaciers and ice caps (GICs) situated near lakes for Greenland, Alaska, Arctic Canada, Iceland, Scandinavia, Svalbard, and the Russian Arctic.
They compared the current volume and extent of GICs to past Holocene periods when they were either 1) smaller than present or 2) absent, with the latter characterizations signifying greater Arctic warmth.
Contrary to the popular view that the modern glacier and ice cap extents are unprecedentedly small or on the verge of disappearing for the first time ever, the authors found more than half the Arctic’s GICs that exist today either did not exist or were smaller than today from 10,000 to 3400 years ago, when atmospheric CO2 ranged between 260 and 270 ppm.
Furthermore, most (“80% or more”) were smaller than today or absent from 7900 to 4500 years ago, which was the peak of this interglacial’s Arctic warmth – multiple degrees Celsius warmer than today.
The following images from the paper document the “Percent of GICs smaller or absent” for each region over the course of the last 10,000 years or more. Notice that between 80% to 100% of GICs were smaller than today or absent from about 8000 and 4000 years ago, and that even the Roman and Medieval Warm Periods had lower GICs extent than today.
The largest glacier and ice cap extent of the Holocene has been realized in the last millennium, suggesting any recession of GICs in the last few centuries is but a partial return to a former period of much greater warmth.
by P. Gosselin, Aug 26, 2022 in NoTricksZone
This summer it’s been warm and awfully dry across mush of Europe. But in terms of global warming and the so-called Arctic tipping point, i.e. a point where the Arctic sea ice melts and theoretically sets off an unstoppable chain of catastrophic events – we look at the midsummer trends of Scandinavia and Finland, and then the Arctic.
As you’ll see, there’s been signs of an Arctic tipping point over the past 15 years.
The Japan Meteorological Agency (JMA) has the latest mean temperature data for July and today we plot the July data from Sweden and Finland for the stations for which the JMA has sufficient data.
We begin with Finland:
by K. Richard, Aug 25, 2022 in NoTricksZone
A late 2021 study finds water vapor and temperature changes accounted for 90% of the changes in clear-sky downwelling longwave or greenhouse effect forcing since the mid-1980s. CO2 forcing assumed a mere bit-player role.
The seminal Feldman et al. (2015) study concluded it takes 10 years and a 22 ppm increase in CO2 to account for just one-tenth of the total longwave or greenhouse effect forcing in recent (2000-2010) climate change trends. The remaining longwave forcing contribution is from water vapor and clouds.
by Kip Hansen, Aug 25, 2022 in WUWT
1. To support a claim that the Earth’s Climate System is “getting hotter” one has to have a long-term time series of measurements of heat in the climate system.
2. Current Global Mean Temperature data sets do not measure heat and thus can not supply evidence for #1.
3. The lack of such a time-series doesn’t mean that the Earth’s climate isn’t gaining energy (heat) – it simply means we don’t have any reliable measure of it.
4. Climate Science may have some evidence of long-term energy gain or what is commonly labelled “Earth’s Energy Budget” — energy in/energy out — but it doesn’t seem to be dominate in the ongoing climate controversy. The latest paper shows that we can still cannot directly measure instantaneous radiative forcing. “This fundamental metric has not been directly observed globally and previous estimates have come from models. In part, this is because current space-based instruments cannot distinguish the instantaneous radiative forcing from the climate’s radiative response.” It is possible that future satellite missions will be able to measure directly and accurately Earth’s incoming and outgoing energy.
by P. Gosselin, Aug 24, 2022 in NoTricksZone
German online NOVO-Argumente looks at the forest fire situation in Germany and Europe.
Currently parts of Europe are experiencing severe drought conditions and forest fires are raging in Germany. Climate activists and the mainstream are claiming it’s climate change, and it’s unprecedented.
But NOVO-Argumente looks at the historical data going back decades and finds nothing alarming.
Over the long-term average (1993 to 2019), 1035 forest fires in Germany were recorded with an average of 656 hectares affected. The amount of damage is just 1.38 million euros. Forest fires therefore cost us about as much per year as we spend every 30 minutes on subsidizing solar and wind energy.
“No evidence of an increase in forest fires”
As the following graph shows, there is no evidence of an increase in forest fires over the last 30 years in terms of number and extent. The peaks are not seen in this chart from the Federal Environmental Agency because they are in the past. In 1975, over 8000 hectares burned in Lower Saxony alone. In contrast, in the year 2021, which is not yet recorded in the graph, there were only 548 forest fires in the whole of Germany on a total area of 148 hectares.
by B. Lomborg, July 2020 in TechForecSocChange
Climate change is real and its impacts are mostly negative, but common portrayals of devastation are unfounded. Scenarios set out under the UN Climate Panel (IPCC) show human welfare will likely increase to 450% of today’s welfare over the 21st century. Climate damages will reduce this welfare increase to 434%.
Arguments for devastation typically claim that extreme weather (like droughts, floods, wildfires, and hurricanes) is already worsening because of climate change. This is mostly misleading and inconsistent with the IPCC literature. For instance, the IPCC finds no trend for global hurricane frequency and has low confidence in attribution of changes to human activity, while the US has not seen an increase in landfalling hurricanes since 1900. Global death risk from extreme weather has declined 99% over 100 years and global costs have declined 26% over the last 28 years.
Arguments for devastation typically ignore adaptation, which will reduce vulnerability dramatically. While climate research suggests that fewer but stronger future hurricanes will increase damages, this effect will be countered by richer and more resilient societies. Global cost of hurricanes will likely decline from 0.04% of GDP today to 0.02% in 2100.
Climate-economic research shows that the total cost from untreated climate change is negative but moderate, likely equivalent to a 3.6% reduction in total GDP.