Archives de catégorie : better to know…?

Throwing More Cold Water On An Alarmist Ocean-Warming Paper

by Dr. D. Whitehouse, January 17, 2020 in ClimateChangeDispatch


It’s the usual story. It’s the beginning of the year and the statistics of the previous year are hurriedly collected to tell the story of the ongoing climate crisis.

First off, we have the oceans which, according to some, are living up to the apocalyptic narrative better than the atmosphere.

The atmosphere is complicated, subjected to natural variabilities, that make the temperature increase open to too much interpretation.

The oceans, however, are far more important than the air as they absorb most of the anthropogenic excess heat.

Looking at the literature reveals no one knows just how much excess heat (created in the atmosphere) it mops up or indeed exactly how or where it does it. Some say it is 60% which is a bit on the low side, most say 90% or 93%.

The real figure is unknown though it should be noted that a few percent errors translate to a lot of energy, about the same amount that is causing all the concern.

On 14 January the Guardian had the headline, “Ocean temperatures hit record high as the rate of heating accelerates.” The study that reached this conclusion was published in the journal Advances in Atmospheric Sciences.

It’s a badly written paper full of self-justifying statements and unwarranted assumptions that should have been stripped-out by the editor.

 

Also : Ocean Warming: Not As Simple As Headlines Say

Les Feux en Australie : la réalité des faits et rien d’autre…

by Yannick Colleu, 17 janvier 2020 in ScienceClimatEnergie


Les feux de brousse en Australie font la une des journaux écrits et audiovisuels. Ces annonces sont reprises par les réseaux sociaux.
La vérité médiatique est maintenant bien établie, ces feux sont l’œuvre du dérèglement climatique. Ces catastrophes humaine et écologique présagent, selon les réseaux dits sociaux, la fin du Monde annoncée par les « experts » du GIEC.

A ma connaissance pas un seul journaliste ne semble s’être penché sur le sujet. Du moins aucune autre conclusion, quant aux causes de cette catastrophe, n’a été, à ma connaissance, publiée sinon pour pointer le changement climatique comme seul et unique coupable.

Pourtant la réponse est moins évidente.

Il est de notoriété publique que l’Australie est un pays coutumier des sécheresses et des températures extrêmes. En outre c’est un pays quasi désertique de 7,7 millions de km² peuplé d’à peine 25 millions d’habitants principalement implantés dans les grandes villes de la côte Est et dans la principale métropole de l’Ouest.

Après les gigantesques feux de brousse de janvier à mars 1961 en Australie occidentale les réflexions sur les actions de prévention conduisaient à préconiser l’usage de feux déclenchés/contrôlés pour maîtriser la végétation à l’approche de la saison sèche. Cette technique permet en effet de créer des coupe-feux et de limiter la matière inflammable qui nourrit les brasiers.

Cette politique préventive a longtemps porté ses fruits, réduisant considérablement les incendies et surtout leur propagation. Néanmoins les chantres de la lutte contre le réchauffement et le CO2 ont poussé le gouvernement australien à changer de politique il y a une dizaine d’années (par exemple ici et ici).

La politique actuelle ne privilégie plus l’anticipation du risque d’incendie mais préconise de laisser les incendies se propager et de ne défendre autant faire se peut que les habitations et les vies humaines.
De fait la végétation n’est plus façonnée par l’homme pour limiter les risques de propagation et celle-ci offre dès lors un combustible abondant au moindre foyer qui se développe.

Le graphique ci-dessous fournit par l’association Bushfire Front Inc (BFF) de l’État d’Australie occidentale révèle l’impact que cet abandon d’une politique de prévention sur les feux de brousse sur la période 1950-2017.

En vert : surface de feux déclenchés.
En rouge : surface de feux de brousse

 

Source : https://www.bushfirefront.org.au/prescribed-burning/why-prescribed-burning/
Légende : La zone d’incendie contrôlé (réduction de ‘carburant’) est indiquée en vert et la zone des feux de brousse (feux de forêt) en rouge. Les pics causés par désastreuse saison des incendies de 1961 et les grands feux de brousse de ces dernières années sont clairement visibles.

2019 Alaska aerial survey found the most polar bears since 2012 – dozens of fat healthy bears

by Polar Bear Science, January 12, 2020 in WUWT


This aerial shot of six fat polar bears lolling around on a sand beach on the coast of the Southern Beaufort Sea, Alaska, was taken by NOAA employees in July 2019. It exemplifies the reality that bears in this subpopulation are currently abundant and healthy, negating the suggestion that numbers have continued to drop since 2006 because bears are starving.

The above picture of polar bear health is not an exception but the rule for all 31 bears recorded onshore last July, as the photos below from other locations testify. Those who would blame this abundance of bears on lack of sea ice in 2019 should note that ice retreated as early and as extensively in 2017 yet only 3 bears were spotted onshore. Results of a recent (2017-2018) population survey, which have not yet been made public, will of course not reflect conditions seen in 2019.

Canada’s Missing Heat: Stations Across The Country Show More Cooling Than Warming

by Kirye, January 12, 2020 in NoTricksZone


Global warming alarmists like claiming that a certain place is seeing more warming and climate change than everywhere else. Remarkably, they say that about almost everywhere, which of course makes no sense.

Today we look at Canadian temperature trends using the data from the Japan Meteorological Institute (JMA) for stations where they have data available going back to at least the mid 1990s.

First we look at December mean temperatures. What follows is a chart depicting the results of 9 stations across Canada:

 

 

Of the 9 examined stations, seven show no warming taking place at all in Canada over the past quarter century for the month of December. Data: JMA.

Lettre ouverte aux informateurs royaux Georges-Louis Bouchez et Joachim Coens.

by A. Berger & S. Furfari, 11 janvier 2020 in LeVIfL’Express


Messieurs les informateurs royaux,

L’année qui se termine a atteint des sommets de désinformation en matière de climat et de son corollaire, l’énergie, sommets qui frisent la manipulation. Les deux auteurs de cette carte blanche ne sont pas nécessairement d’accord sur toutes les questions à l’entour de ces débats, mais ils le sont sur un double triste constat. D’une part, l’hystérie actuelle n’est ni appropriée, ni constructive. D’autre part, les solutions proposées pour contrer le changement climatique ne sont pas adaptées.

Continuer la lecture de Lettre ouverte aux informateurs royaux Georges-Louis Bouchez et Joachim Coens.

Despite 1990s Warming, Japan Climate Has Become More Agreeable, Less Extreme Over Past 100 Years!

by Kirye, January 9, 2020 in NoTricksZone


Though the media like to tell their audience that man-made climate change is leading to more extreme weather, the data don’t support it. In fact, one could easily argue that Japan’s climate is more agreeable today.

No trend in long-term annual precipitation

Over the past 100 years, for example, annual precipitation has not trended in an particular direction over the long term, showing rather some cyclical attributes:

 

Data source: Japan Meteorological Agency (JMA). 

If anything, precipitation has been rather steady for the better part of the past 2 decades, and even resembles what was observed about 60 years ago, in the 1950s.

Note how the extremes in precipitation occurred in the 1970s and 1980s when most of the climate talk was about global cooling. But overall, there’s been no trend change in precipitation in Japan.

Typhoons trending downward modestly!

The Climate Decade that Was: Failed Predictions, Tour De Paris, and the Gretas

by  V. Jayaraj, January 8, 2020 in WUWT


As we step into a new decade, here’s a look at the climate drama that just ended.

The 2010s were dominated by the failure of doomsday prophecies, the adoption of a fantasy climate agreement, unexpected weather trends, and the beginning of the climate emergency cult movement that reminded many of the overpopulation hype of the 1970s and 1980s.
Al Gore Prophecies

Al Gore’s legacy of lies continued to spill into the second decade of this century. Contrary to his predictions in the famous climate documentary An Inconvenient Truth, polar bear populations increased, the Arctic and Antarctic remained relatively unaffected, and no major coastal economy was threatened by rising sea levels.

Gore would have had nightmares when the Canadian authorities in 2019 pondered culling polar bears because of their excess numbers caused trouble for residents in Nunavut.

 

Continuer la lecture de The Climate Decade that Was: Failed Predictions, Tour De Paris, and the Gretas

Climate models continue to project too much warming

by Dr. J. Lehr & J. Taylor, January 6, 2020 in CFACT


A recently published paper, titled “Evaluating the Performance of Past Climate Model Projections,” mistakenly claims climate models have been remarkably accurate predicting future temperatures. The paper is receiving substantial media attention, but we urge caution before blindly accepting the paper’s assertions.

As an initial matter, the authors of the paper are climate modelers. Climate modelers have a vested self-interest in convincing people that climate modeling is accurate and worthy of continued government funding. The fact that the authors are climate modelers does not by itself invalidate the paper’s conclusions, but it should signal a need for careful scrutiny of the authors’ claims.

Co-author Gavin Schmidt has been one of the most prominent and outspoken persons asserting humans are creating a climate crisis and that immediate government action is needed to combat it. Again, Schmidt’s climate activism does not by itself invalidate the paper’s conclusions, but it should signal a need for careful scrutiny of the authors’ claims.

The paper examines predictions made by 17 climate models dating back to 1970. The paper asserts 14 of the 17 were remarkably accurate, with only three having predicted too much warming.

One of the paper’s key assertions is that global emissions have risen more slowly than commonly forecast, which the authors claim explains why temperatures are running colder than the models predicted. The authors compensate for this by adjusting the predicted model temperatures downward to reflect fewer-than-expected emissions. Yet fewer-than-expected greenhouse gas emissions undercut the climate crisis narrative.

The U.N. Intergovernmental Panel on Climate Change has already reduced its initial projection of 0.3 degrees Celsius of warming per decade to merely 0.2 degrees Celsius per decade. Keeping in mind that skeptics have typically predicted approximately 0.1 degree Celsius of warming per decade, the United Nations has conceded skeptics have been at least as close to the truth with their projections as the United Nations. Moreover, global temperatures are likely only rising at a pace of 0.13 degrees Celsius per decade, which is even closer to skeptic predictions.

Even after the authors adjusted the model predictions to reflect fewer-than-expected greenhouse gas emissions, there remains at least one very important problem, which immediately jumped out at us when carefully examining the paper’s findings: The paper’s assertion of remarkable model accuracy rests on a substantial temperature spike from 2015 through 2017. A strong, temporary El Niño caused the short-term spike in global temperatures from 2015 to 2017. The plotted temperature data in the paper, however, show that temperatures prior to the El Niño spike ran consistently colder than the models’ adjusted predicted temperatures. When the El Niño recedes, as they always do, temperatures will almost certainly resume running colder than the models predicted, even after adjusting for fewer-than-expected greenhouse gas emissions.

Another problem with the paper is that it utilizes controversial and dubiously adjusted temperature datasets rather than more reliable ones. The paper relies on temperature datasets that are not replicated in any real-world temperature measurements. Surface temperature measurements and measurements taken by highly precise satellite instruments show significantly less warming than the authors claim. The authors rely on temperature datasets that utilize controversial adjustments to claim more recent warming than what has actually been measured, which further undercuts their claim of remarkable model accuracy.

Contrary to what has been written in many breathless media reports, the most important takeaways from the paper are that greenhouse gas emissions are rising at a more modest pace than predicted, the modest pace of global temperature rise reflects the modest pace of rising emissions, and climate models have consistently predicted too much warming—even after accounting for fewer-than-expected greenhouse gas emissions. A temporary spike in global temperatures reflecting the recent El Niño does not save the models from their consistent inaccuracy.

REE mineral-bearing rocks found in eastern Mojave Desert

by Geological Society of America, January 2, 2020 in ScienceDaily


Scientists from the U.S. Geological Survey (USGS) have mapped a rare earth element deposit of magmatic carbonatite located in the Mountain Pass region of the eastern Mojave Desert. The new report details the geophysical and geological setting of the deposit, including a map of the deposit’s subsurface extent, to help land-use managers evaluate sites for further exploration. The report was recently published in the Geological Society of America’s online journal, Geosphere.

Rare earth elements (REEs) are critical to emerging industrial technologies including strategic defense, science and medical, automotive and transportation, and civilian electronics. However, large economic REE sources are unique and uncommon worldwide. International concerns about increasing demand and global supply vulnerability have prompted many countries, including the U.S., to explore and assess domestic REE resources. Increased efforts to characterize geologic processes related to REE deposits in the U.S. have focused attention on the world-class Mountain Pass, California, deposit located approximately 60 miles southwest of Las Vegas, Nevada.

In their study, collaborators K.M. Denton and USGS colleagues use geophysical and geological techniques to image geologic structures related to REE mineral-bearing rocks at depth. Their work suggests REE minerals occur along a fault zone or geologic contact near the eastern edge of the Mescal Range. These findings could prove as a useful guide to future exploration efforts.

2004 Climate Apocalypse Prediction Bites the Dust

by David Middleton, January 3, 2020 in WUWT


Nolte: Department of Defense Predicted Climate Change Would Destroy Us by 2020

by JOHN NOLTE 3 Jan 2020

Back in 2004, the Department of Defense released a report assuring the world Climate Change would destroy all of us by the year 2020.

Well, welcome to the year 2020! And welcome to yet another fake doomsday prediction number 42 from our renowned climate experts!

Yep, our so-called “climate experts” are now 0-42 with their doomsday predictions, and this latest one is a doozy.

[…]

 

Australian Wildfire Latest

by P. Homewood, January 3, 2020 in NotaLotofPeopleKnowThat


According to the Telegraph, the current fires have affected 5.9m hectares, or 59,000 km2. While they claim this is three times the size of Wales, we need to remember that Australia is more than 30 times the size of the UK. 59,000 km2 represents 0.77% of Australia’s area, which in UK terms would be about 1800 km2, equivalent to three times the size of the New Forest.

.

Now we can look at the rainfall data for Australia as a whole from BOM:

Certainly the area either side of the Queensland border shows the lowest rainfall on record, but most of the state has seen periods before with lower rainfall.

Also note that worst fires seem to be clustered towards the Victoria border, where rainfall deficiency has been less severe.

Finally it is worth revisiting the rainfall trend map. It shows that since 1900, most of the country has been getting wetter, with the exception of a small part of Queensland, and some coastal areas of Western Australia and southern Australia along with Tasmania:

Also: Let’s tell the burning truth about bushfires and the ALP-Greens coalition

Also : How Greens Made Australia’s Bushfires Worse

Also: Bushfire scientist David Packham warns of huge blaze threat, urges increase in fuel reduction burns

Also : Australia’s Epic Fires Caused By Bad Forestry And Arson, Not Climate Change

Also : Australian wildfires were caused by humans, not climate change

Also : Australian Bushfires Much Worse In 1974/5

Also : Climatologist: Blaming Aussie Bushfires On Climate Change Is ‘Alarmist Nonsense’

Also : Who Checks The Factcheckers?

Also : Fake News: “The idea that “greenies” … would oppose measures to prevent fires … is simply false.”

Also : Forgotten Fact: 1974/75 Australian Bush Fires Were More Than 9 Times Greater Than Those Of 2019/20!

Also : The Aussie Wildfires Are About Arsonists – Not Climate Change

Also : Climate change: Australia fires will be ‘normal’ in warmer world–Matt McGrath

Also : Australia fires: Aboriginal planners say the bush ‘needs to burn’

Also : Fight fire with fire: controlled burning could have protected Australia

The Myth of the Apolitical Scientist

by Donna Laframboise, October 28, 2019 in BigPictureNews


Matthew Green is not a naive teenager. He’s a seasoned journalist who has worked in Afghanistan and Pakistan, and who has written a book about a Ugandan warlord. So how do we explain the Reuters story he filed earlier this month, headlined Scientists endorse mass civil disobedience to force climate action?

Its major theme is that there’s something new going on, that the climate situation is so dire scientists have begun behaving in an extraordinary manner. 400 scientists from 20 countries have broken “with the caution traditionally associated” with their profession, he says. Having previously “shunned overt political debate,” they’ve now discovered “a moral duty” to “defy convention.”

In his 1968 bestseller, The Population Bomb, biology professor Paul Ehrlich declaredthat “the time of famines” had arrived. The only “hope for survival” was “drastic worldwide measures.” His book was a political treatise that advocated “brutal and heartless decisions” to solve a problem that never did materialize.

The 1972 bestseller, titled A Blueprint for Survival, similarly proclaimed that “a succession of famines, epidemics, social crises and wars” were inevitable if governments didn’t take specific, dramatic actions. Politicians and the public were urged to pay attention since “34 distinguished biologists, ecologists, doctors and economists” had attached their names to that blueprint.

Steinberger’s comments to the contrary, it has been a long time since we’ve had ‘science as usual.’ Here’s a quote from a book published in 1976:

8000 Years Of Zero Correlation Between CO2 And Temperature, GISP 2 Ice Core Shows – Opposite Is True!

by P. Gosselin, December 20, 2019 in NoTricksZone


A plot of ice core data from Greenland reveals that CO2 does not drive temperatures.

At Facebook, Gregory Wrightstone posted a chart plotting atmospheric CO2 concentration reconstructed from  Dome C Ice Core versus temperature that was reconstructed from the GISP 2 Ice Core.

According to global warming scientists, there’s supposed to be tandem movement between the two magnitudes.

CO2, they say, drives global temperature.

But over the past 8000 years, the data show that temperature in reality has moved in the opposite direction of CO2 and thus of what climate alarmist scientists have told us.

 

If anything can be drawn from the plotted data, it is that there’s an inverse correlation: As CO2 rises, temperature drops. But of course there’s a lot more to it. CO2 is not that huge major climate driver that alarmists like having us believe it is.

Recent Scientific Work on Climate

by D. Siegel, December 199, 2019 in MediumWork


In this piece, I’m going to summarize some of the more recent work by scientists and statisticians on climate. It’s important to understand that …

China Burns Over Half Of The World’s Coal And Will Account For 50% Of Global CO2 Emissions By 2030

by K. Richard, December 19, 2019 in NoTricksZone


Today, 30% of the globe’s CO2 emissions come from China. In 10 years, China’s emissions alone will match the rest of world’s emissions combined. China continues to build hundreds of coal plants today. So why are the rest of us spending $600 billion every year on CO2 emissions mitigation?

China overtook the United States as the world’s largest CO2 emitter in 2008 (Liu et al., 2019).

Who Is Winning The Climate Wars? (Part Two)

by F. Menton, December 18, 2019 in ClimateChangeDispatch


A few weeks ago (November 22), in a post titled “Who Is Winning The Climate Wars?”, I undertook to begin documenting the ever-growing chasm between the unhinged rhetoric of climate campaigners and the reality out there in the world.

Let’s collect a few data points over the past several weeks.

You probably know that the UN held its annual big climate conference this year in Madrid during the first two weeks of December.

That event provided the occasion for many campaigners to ramp up the volume of their claims, trying once again to stampede government representatives into agreeing to impoverish their people.

A few examples:

The fact is that outside of some wildly guilty European countries and the loons in the U.S. Democratic Party’s far Left, fewer and fewer people pay any attention whatsoever to the absurd climate apocalypse rhetoric.

Why The Media Doesn’t Report Previous Failed Climate Doom Predictions

by Jack Hellner, December 18, 2019 in ClimateChangeDispatch


Here is a small sample of predictions on the climate that almost all of the media regurgitate with no questions asked:

  • 2019-The UN says we only have a few years left because of warming.
  • 2008-On ABC, Good Morning America. By 2015, New York City would be underwater, milk would be $13 per gallon and gasoline would be $9 per gallon, very little of Miami would be left. (they were so close)
  • 2005-After Katrina we were told hurricanes would be more frequent and severe than ever. Instead, we had a ten-year lull in serious hurricanes hitting the U.S.
  • 1989- The UN says we only have a few years left because of warming.
  • 1970-First Earth Day. Billions would die soon because of global cooling and an ice age.
  • 1922-AP and Washington Post-Coastal cities would soon be underwater because the ice caps have melted due to global warming.

Here is a small sample of questions for politicians, bureaucrats, scientists, educators, Time person’s of the year, and people who pretend to be journalists peddling the indoctrination and pushing the agenda.

Huge Climatic Crowd Exaggeration! Claimed Size Of 500,000 Was 97% Lie… Only 15,000 In Madrid, Spanish Police Say

by P. Gosselin, December 13, 2019 in NoTricksZone


Grand media deception

So typical of climate science. Everything in and around it gets wildly exaggerated in order to feed media consumption and deceive the public. Reports are emerging that the “500,000 people” crowd awaiting Greta in Madrid was in fact as low as 15,000, according to Spanish federal police.

That would make the 500,000 claimed figure a 3000% exaggeration!

The toxic rhetoric of climate change

by Judith Curry, December 14, 2019 in ClimateEtc.


“I genuinely have the fear that climate change is going to kill me and all my family, I’m not even kidding it’s  all I have thought about for the last 9 months every second of the day. It’s making my sick to my stomach, I’m not eating or sleeping and I’m getting panic attacks daily. It’s currently 1 am and I can’t sleep as I’m petrified.”  – Young adult in the UK

Letter from a worried young adult in the UK

I received this letter last nite, via email:

“I have no idea if this is an accurate email of your but I just found it and thought I’d take a chance. My name is XXX I’m 20 years old from the UK. I have been well the only word to describe it is suffering as I genuinely have the fear that climate change is going to kill me and all my family, I’m not even kidding it’s  all I have thought about for the last 9 months every second of the day. It’s making my sick to my stomach, I’m not eating or sleeping and I’m getting panic attacks daily. It’s currently 1am and I can’t sleep as I’m petrified. I’ve tried to do my own research, I’ve tried everything. I’m not stupid, I’m a pretty rational thinker but at this point sometimes I literally wish I wasn’t born, I’m just so miserable and Petrified. I’ve recently made myself familiar with your work and would be so appreciative of any findings you can give me or hope or advice over email. I’m already vegetarian and I recycle everything so I’m really trying. Please help me. In anyway you can. I’m at my wits end here.”

JC’s response

We have been hearing increasingly shrill rhetoric from Extinction Rebellion and other activists about the ‘existential threat’ of the ‘climate crisis’, ‘runaway climate chaos’, etc. In a recent op-ed, Greta Thunberg stated: “Around 2030 we will be in a position to set off an irreversible chain reaction beyond human control that will lead to the end of our civilization as we know it.”  From the Extinction Rebellion: “It is understood that we are facing an unprecedented global emergency. We are in a life or death situation of our own making.”

Human Activity in China and India Dominates the Greening of Earth, NASA Study Shows

by NASA, February 11, 2019


The world is literally a greener place than it was 20 years ago, and data from NASA satellites has revealed a counterintuitive source for much of this new foliage: China and India. A new study shows that the two emerging countries with the world’s biggest populations are leading the increase in greening on land. The effect stems mainly from ambitious tree planting programs in China and intensive agriculture in both countries.

The greening phenomenon was first detected using satellite data in the mid-1990s by Ranga Myneni of Boston University and colleagues, but they did not know whether human activity was one of its chief, direct causes. This new insight was made possible by a nearly 20-year-long data record from a NASA instrument orbiting the Earth on two satellites. It’s called the Moderate Resolution Imaging Spectroradiometer, or MODIS, and its high-resolution data provides very accurate information, helping researchers work out details of what’s happening with Earth’s vegetation, down to the level of 500 meters, or about 1,600 feet, on the ground.

A world map showing the trend in annual average leaf area, in percent per decade (2000-2017)
The world is a greener place than it was 20 years ago, as shown on this map, where areas with the greatest increase in foliage are indicated in dark green. Data from a NASA instrument orbiting Earth aboard two satellites show that human activity in China and India dominate this greening of the planet.
Credits: NASA Earth Observatory

Taken all together, the greening of the planet over the last two decades represents an increase in leaf area on plants and trees equivalent to the area covered by all the Amazon rainforests. There are now more than two million square miles of extra green leaf area per year, compared to the early 2000s – a 5% increase.

“China and India account for one-third of the greening, but contain only 9% of the planet’s land area covered in vegetation – a surprising finding, considering the general notion of land degradation in populous countries from overexploitation,” said Chi Chen of the Department of Earth and Environment at Boston University, in Massachusetts, and lead author of the study.

Barrels of ancient Antarctic air aim to track history of rare gas

by University of Washington, December 13, 2019 in ScienceDaily


An Antarctic field campaign last winter led by the US and Australia has successfully extracted some of the largest samples of air dating from the 1870s until today. Researchers will use the samples to look for changes in the molecules that scrub the atmosphere of methane and other gases.

“It’s probably the most extreme atmospheric chemistry you can do from ice core samples, and the logistics were also extreme,” said Peter Neff, a postdoctoral researcher with dual appointments at the UW and at the University of Rochester.

But the months the team spent camped on the ice at the snowy Law Dome site paid off.

“This is, to my knowledge, the largest air sample from the 1870s that anyone’s ever gotten,” Neff said. His 10 weeks camped on the ice included minus-20 degrees Fahrenheit temperatures and several snowstorms, some of which he shared from Antarctica via Twitter.

Air from deeper ice cores drilled in Antarctica and Greenland has provided a record of carbon dioxide and methane, two greenhouse gases, going back thousands of years. While carbon dioxide has a lifetime of decades to centuries, an even more potent gas, methane, has a lifetime of just nine or 10 years.

Victoria Secrets Exposed…More Falsehoods By Spiegel, Guardian… Victoria Falls Variability Nothing To Do With CO2.

by P. Gosselin, December 11, 2019 in NoTricksZone


Not CO2 related

A little later in the report we also find a flow diagram for the Victoria Falls:

Figure: Water flow rate-volume at the Victoria Falls an den 1907-2006. Source: Beilfuss 2012 (immediately pdf)

We see a strong variability from year to year. On a scale of several decades, the period 1940-1980 is characterized by particularly high flow rates. The early 20th century was rather dry. A coupling to the 60-year-old ocean cycle offers itself. The Pacific is far away, but the wet Zambezi phase fits quite well into the negative PDO:

igure: The Pacific Decadal Oscillation (PDO). Source: By Giorgiogp2 – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=13297650

 

TRIBUNE. Pourquoi les affirmations catastrophistes sur le climat sont fausses

by M. Schellenberger, 10 décembre 2019 in LePoint


Pour l’écologiste pragmatique Michael Shellenberger, les déclarations apocalyptiques s’avèrent scientifiquement erronées et politiquement contre-productives.

Ces dernières semaines, les journalistes et les défenseurs de l’environnement ont fait un certain nombre de prédictions apocalyptiques sur l’impact du changement climatique. L’écologiste Bill McKibben a suggéré qu’en Australie, les incendies causés par le climat avaient rendu les koalas « pratiquement éteints ». Extinction Rebellion affirme : « Des milliards de gens mourront » et « la vie sur Terre est en train de s’éteindre ». Vice magazine soutient que « l’effondrement de la civilisation a peut-être déjà commencé ».

Peu ont plus attiré l’attention sur cette menace que la militante étudiante Greta Thunberg et la représentante démocrate Alexandria Ocasio-Cortez, sponsor du Green New Deal. Cette dernière prétend que « le monde va s’écrouler dans douze ans si nous ne nous attaquons pas au changement climatique ». Dans son nouveau livre, Thunberg affirme : « Vers 2030, nous serons en situation de déclencher une réaction en chaîne irréversible hors du contrôle humain, qui conduira à la fin de la civilisation telle que nous la connaissons. »

 

See also here: At UN Climate Summit, Alarmists Put Dogma Over Science

Ces villes qui ne se réchauffent pas

by Jean N., 6 décembre 2019 in ScienceClimatEnergie


Non, le réchauffement de la planète n’est pas global comme l’affirment les médias. Selon la dernière version des données officielles de température fournies par le Goddard Institute for Space Studies (GISS) de la NASA (les séries thermométriques terrestres GHCNv4), il existe dans le monde toute une série de villes, villages et régions où aucun réchauffement de la troposphère n’est observé au niveau du sol en fonction du temps. Ceci est d’ailleurs confirmé par la récente étude de Lansner & Pedersen publiée en 2018 (et qui avait fait l’objet d’un article ici-même), mais aussi par d’autres publications qui analysent par exemple le “warming hole” des Etats-Unis (Partridge et al. 2018). Et pourtant, dans ces régions qui ne se réchauffent pas, le taux atmosphérique de CO2 a bel et bien augmenté de manière significative (voir ici). Le but du présent article est d’abord de vous présenter 12 de ces villes et régions. Nous verrons ensuite que le rôle attribué au CO2 est exagéré et que de nombreux facteurs, méconnus, entrent en jeu et jouent probablement un rôle dominant.

1. Présentation de quelques villes et régions qui ne se réchauffent pas.

Dans les lignes qui suivent, les données officielles de température seront utilisées. La qualité de ces données a bien entendu été contrôlée par les gestionnaires locaux des stations météorologiques, et puis par le GISS lui-même. Ne seront présentées que les séries de températures moyennes annuelles. Les données ont ensuite été ajustées pour tenir compte des effets non climatiques, des changements géographiques éventuels de stations de mesure, ainsi que de l’effet de chaleur urbain qui a été déduit. Il s’agit donc de données nettoyées, appelées “GHCN-adj-homogenized”. Chacun peut se les procurer librement sur le site web du GISS (il suffit de cliquer sur un endroit du monde sur la carte ici).

1.1. Commençons par Nashville aux Etats-Unis (Figure 1). Il s’agit de la capitale de l’État du Tennessee qui comptait 668 347 habitants en 2014. Nashville possède un climat subtropical humide (dans la Classification de Köppen) avec des hivers doux qui peuvent être modérément froids et des étés chauds et humides. Les moyennes mensuelles varient entre 3,4 °C pour le mois le plus froid (janvier) et 26,6 °C pour le mois le plus chaud (juillet). On peut voir sur la Figure 1 la relative stabilité de la température moyenne annuelle oscillant autour de 13°C, et ce depuis 1982 (la droite de régression possède une pente très faible, proche de zéro, et valant +0,0061).

 

Figure 1. Température moyenne annuelle de Nashville (Tennessee, USA) entre 1982 et 2018.