Archives de catégorie : climate-debate

better to know...?, climate-debate

GREENLAND HAS GAINED 27+ GIGATONS OF SNOW AND ICE OVER THE PAST 5 DAYS ALONE — MSM SILENT

by Cap Allon, April, 2020 in Electroverse

Despite decades of doom-and-gloom prophecies, Greenland’s Ice Sheet is currently GAINING monster amounts of “mass” — 27 gigatons over the past 5 days alone (April 14 – 18, 2020).

Crucial to the survival of a glacier is its surface mass balance (SMB)–the difference between accumulation and ablation (sublimation and melting). Changes in mass balance control a glacier’s long-term behavior, and are its most sensitive climate indicators (wikipedia.org).

On the back of substantial SMB gains over the past few years, the Greenland ice sheet looks set to continue that trend in 2019-20. From April 14 through April 18, 2020, the world’s largest island added a monster 27+ gigatons to its ice sheet. According to climate alarmists, this simply shouldn’t be happening in a warming world. In fact, it might as well not be happening as developments like these NEVER receive MSM attention, meaning alarmists are NEVER privy to the full and unalarming picture…

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climate-debate

‘Arctic April’ Grips N. America Breaking Hundreds Of Cold Records

by Cap Allon, April 16, 2020 in ClimateChangeDispatch

Record cold and snowfall hit many parts of North America over the Easter weekend, continuing what has so far been a largely Arctic April.

Records were toppled across many U.S. states, with Montana, Iowa, South Dakota, and Colorado seemingly worst hit.

A winter storm system moved through Iowa on Sunday delivering between three inches and a foot to the majority of locations — several northern Iowa towns saw all-time records tumble:

The 3.7 inches that fell at Sioux Gateway Airport broke the record for April 12th; it also made it the second-highest Easter snowfall ever behind the 4.7 inches during Easter 1929.

The town of Ringsted in Emmet County (also Iowa) came in with a record-busting 11 inches.

Robert “Lightning” Petersen was the man to log the accumulation — he uses his back yard measuring equipment to keep track of snow and rainfall. He works in concert with the National Weather Service out of Johnston.

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better to know...?, climate-debate

UK State Of The Climate Report 2019

by P. Homewood, April 16, 2020 In NotaLotofPeopleKnowThat

London, 16 April: The floods that affected northern England in the autumn of 2019 were nothing out of the ordinary. That’s according to a new review of the UK’s 2019 weather.

Author Paul Homewood says that although rainfall in the region was high, it has been exceeded several times in the past, right back to the 19th century.

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Key findings

* After a rising trend between the 1980s and early 2000s, temperature trends have stabilised in the UK.

* Heatwaves are not becoming more intense, but extremely cold weather has become much less common.

* There is little in the way of long-term trends in rainfall in England and Wales.

* Sea-level rise around British coasts is not accelerating.

The UK’s Weather in 2019: More of the same, again (PDF)

climate-debate

Melting Glaciers Uncover Medieval Artefacts In Norway

by P. Homewood, April 16, 2020 in NotaLotofPeopleKnowThat

Melting glaciers in Norway have revealed ancient artefacts dropped by the side of a road more than 1,000 years ago.

Clothes, tools, equipment and animal bone have been found by a team at a lost mountain pass at Lendbreen in Norway’s mountainous region.

A haul of more than 100 artefacts at the site includes horseshoes, a wooden whisk, a walking stick, a wooden needle, a mitten and a small iron knife.

The team also found the frozen skull of an unlucky horse used to carry loads that did not make it over the ice.

The objects that were contained in ice reveal that the pass was used in the Iron Age, from around AD 300 until the 14th century.

Activity on the pass peaked around AD 1000 and declined after the black death in the 1300s, due as well to economic and climate factors.

The researchers say the melting of mountain glaciers due to climate change has revealed the historical objects, with many more to come.

https://www.dailymail.co.uk/sciencetech/article-8224817/Melting-ice-reveals-lost-Viking-mountain-path.html

 

Unfortunately neither the journalist nor the scientists seem to be capable of adding 2+2!

 

The existence of the Medieval Warm Period in Norway, followed by glacial advance in the Little Ice Age has been long known about, as HH Lamb wrote in 1982:

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climate-debate

New Studies: Europe Is No Warmer Today Than It Was During Medieval Times

by K. Richard, April 13, 2020 in NoTricksZone

Two new papers use tree ring proxy evidence to suggest modern European temperatures are neither unusual nor higher than they were during the Medieval Warm Period.

Esper et al. (2020) have produced a new temperature reconstruction for Southern Europe to complement past reconstructions for Northern and Central Europe.

They find “the warmest 30-year period since 730 CE occurred during high Medieval times (876–905 CE=+0.78 °C w.r.t. 1961–1990) and has been slightly warmer than the recent period from 1985–2014 (+0.71 °C)“.

The proxy evidence and instrumental record also show there has been no obvious net warming in Southern Europe since the 1940s.

Past reconstructions for Northern and Central Europe also show no unusual warming has occurred over the last century, with as-warm or warmer temperatures during the 1940s.

Ljungqvist et al., 2020  cite tree ring temperature studies from Scandinavia, Scotland, Continental Europe, and the Pyrenees that also show the 1930s and 1940s were as-warm or warmer than recent decades.

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better to know...?, climate-debate

While NASA Alters/Warms Greece Temperature Data, Cold And Unusual Snow Keep Coming Anyway!

by Kirye and P. Gosselin, April 10, 2020 in NoTricksZone

So what’s going on?

NASA and other government agencies keep telling us that the globe is warming and ice becoming more rare, yet when look out the window, things often appear to be going the opposite direction.

Rare cold, snow grip Greece

For example, the Greek Reporter here informed how a “rare spring snow” blanketed large parts of northern Greece. It reported: “Of course, Northern Greece is used to low temperatures and snow, but even for their standards, such an intense snowfall in April is rare.”

Moreover, the widely read Electroverse weather site here reported how southeast Europe had seen its “coldest April morning in a decade”, potentially causing widespread crop damage.

So why are such events happening when they aren’t supposed to be?

Altering: from cooling to warming

Today we look at the NASA data from two stations in Greece: Makedonia and Larissa, shown below:

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climate-debate

IP: Award-Winning Atmospheric Scientist Dr. Fred Singer Dies – Pioneering Scientist & The Dean of Climate Skeptical Scientists

by C. Rotter, April 7, 2020 in WUWT

Marc Morano’s personal note: “I have known Fred Singer for almost two decades. He was as kind as he was brilliant. He had an encyclopedic acknowledge of people, facts, institutions, and science. I was honored to be his friend and attend Fred’s 95th birthday in the fall of 2019. In 2018, Craig Rucker and I presented Fred CFACT’s 2018  ‘DAUNTLESS Purveyor of Climate Truth’ Lifetime Achievement Award. I traveled with Fred to the UN Paris climate summit in 2015 and we met up at many international destinations to fight the UN’s corruption of climate science.  My condolences to Fred’s family and my condolences the world of science. You lost a great one. Rest in Peace Fred, you earned it. Cheers to an honorable man of science and a life well-lived. You will be missed Fred.”

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By: Marc Morano – Climate Depot

climate-debate

Les glaces terrestres, la cryosphère 3/3

by JC Maurin, 10 avril 2020 in ScienceClimatEnergie

Partie 3/3 : La diminution de la cryosphère est-elle démontrée dans l’AR5?

La contribution de la cryosphère à la hausse du niveau des mers est abordée dans le chapitre 4 du rapport AR5 du GIEC [1]. Les banquises [2] ne figurent pas parmi les contributeurs car leur fonte ne peut affecter les niveaux marins.

Le GIEC est persuadé que la masse de la cryosphère a diminué entre 1992 et 2012. Cette certitude de l’organisme intergouvernemental est fondée sur sa grande confiance dans des modèles gravimétrique/altimétrique et sur des marges d’erreur très optimistes, particulièrement en Antarctique [3] et sur les glaciers [4].

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climate-debate

Causes of the Rapid Warming of the North Atlantic Ocean in the Mid-1990s

by P. Homewood, April 9, 2020 in NotaLotofpeopleKnowThat

http://ocean.dmi.dk/arctic/icecover_30y.uk.php

Most of us are probably familiar with the pattern of Arctic sea ice decline between 1979 and 2007, followed by a period of relative stability. Most of the decline took place after the mid 1990s.

The decline is nearly always explained away as the result of global warming, but a couple of old studies show this not to be the case.

In 2011, Robson & Sutton found that the sub polar gyre underwent remarkable and rapid warming in the mid 1990s, and that this was linked to changes in the North Atlantic Oscillation:

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better to know...?, climate-debate

Science team points out a new failure of climate models

by A. Watts, April 6, 2020 in WUWT

From Nature Climate Change:

Ill-sooted models by Baird Langenbrunner

Atmospheric black carbon (BC) or soot — formed by the incomplete combustion of fossil fuels, biofuel and biomass — causes warming by absorbing sunlight and enhancing the direct radiative forcing of the climate. As BC ages, it is coated with material due to gas condensation and collisions with other particles. These processes lead to variation in the composition of BC-containing particles and in the arrangement of their internal components — a mixture of BC and other material — though global climate models do not fully account for these heterogeneities. Instead, BC-containing particles are typically modelled as uniformly coated spheres with identical aerosol composition, and these simplifications lead to overestimated absorption.

Full article here

Here, the PNAS paper

Carbon soot in from industrial process in the air. Licensed from 123rf.com

better to know...?, climate-debate

The Next Solar Cycle

by David Whitehouse.(pdf), April 6, 2020 in GWPF

London, 6 April: A former BBC science correspondent says that there remains a real possibility that unusual solar behaviour could influence the Earth’s climate, bringing cooler temperatures  for the next decade.

Despite rising levels of atmospheric carbon dioxide, the reduction in solar activity along with cooling from other long-term terrestrial climate variables could mean we might see a slowdown in global warming for years.

Dr Whitehouse says:  “It is clear that the solar influence on climate is about 0.1 °C a decade so it is important to know when there are low solar activity periods. We have a grasp of the basic mechanism that drives long-term solar activity, but many of the specifics still elude us. Successful predictions of solar cycle strength are therefore few and far between.”

Whitehouse adds that although NASA are predicting that solar cycle 25, which is just beginning, might be moderate-to-weak, the possibility of a very weak cycle, with a measurable effect on the terrestrial climate, remains a real one.

Dr Whitehouse reviews the history of solar cycle predictions in a new paper by the Global Warming Policy Foundation which is published today.

The paper, entitled The Next Solar Cycle, And Why It Matters For Climate, can be downloaded here (pdf). 

Contact

Dr David Whitehouse
e: david.whitehouse@thegwpf.com

better to know...?, climate-debate

Is Greenland Warming, Melting? Hell No! NASA Data Show No Warming In Nearly 100 Years!

by Kirye & Gosselin, April 3, 2020 in NoTricksZone

But then NASA adjusted the V3 data and called it GHCN V4 “unadjusted”. The chart shown above in my tweet toggles between the prior V3 chart and the “unadjusted” V4. See the difference?

Note how the lack of warming has been removed and now the V4 data show modest warming. The missing heat was found – in the statistics! So in a sense, global warming has been “man-made” – done through statistical fudging and not human activity.

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climate-debate

Extra warm U.S. winter had nature’s thumbprint on it–Joe Bastardi

by P. Homewood, April 3; 2020 in NotaLotofPeoppleKnowThat

Joe Bastardi explains why this winter has been so mild in the US, but also across N Europe, at CFACT.

Two points:

1) I will make the case for why such winters like this happen

2) I will point out that nowhere in this article did the massive natural physical drivers that far outweigh the effect of CO2, which is only .041% of the atmosphere. Pointedly, of which man is only responsible for  25% and the US only 15% of that total.

I am not going to waste time attacking here, except to say this kind of one-sided journalism and the fact that nowhere did anyone show what I am about to reveal to you, should raise questions of any objective person.

Basically the rules of the game are, if its warm like this winter, its climate change, if it is cold, its climate change. It is typical of everyone gets a trophy in that any answer even if opposite, means you get credit.

I won’t copy the whole article as it is a bit technical, but it can be seen here. However these are the main points Joe raises, starting with the role of El Nino and water vapour:

Water vapor is by far the most important greenhouse gas when it comes to the planetary weather and climate. Meteorologist look at “saturation mixing ratios” which show a correlation of water vapor to temperature. Basically the colder and drier the air mass, the more the introduction of water vapor will lead higher temperatures, there is no place like the arctic to prove this is the case. The cyclically warmed oceans have put more water vapor (and CO2) into the air. When Super El Niño’s go off, the immense amounts dispersed lead to a step up of the temperature. The colder regions leading the way as will be opined on below.

climate and geology, climate-debate

Magma Flood Linked To Sudden Ancient Global Warming Event

by H. Lee, April 1, 2020 in ClimateChangeDispatch

A study has cemented the link between an intense global warming episode 56 million years ago and volcanism in the North Atlantic, with implications for modern climate change.

Roughly 60 million years ago, circulation changes deep within our planet generated a hot current of rock — the Iceland plume — causing it to rise from the heart of Earth’s mantle.

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The Giant’s Causeway in Northern Ireland is a geologic feature consisting of thousands of interlocking basalt columns that formed from volcanic eruptions 60 million years ago.

The Wrong Kind Of Carbon

Although a great deal of North Atlantic volcanism happened close in time to the PETM, scientists were initially skeptical that it could have driven the warming.

Sedimentary layers that formed at the time had the wrong kind of carbon — they were rich in the isotope carbon-12, indicating an organic carbon source rather than a volcanic one.

The leading theory was that fluctuations in Earth’s orbit around the sun melted a type of frozen methane just beneath the seabed called methane clathrates.

Yet scientists found scant evidence that enough clathrates existed in the pre-PETM world, or that they could have melted fast enough to drive the warming.

A possible missing link between the North Atlantic Igneous Province and organic carbon was spotted in 2004 in seismic scans through the seabed off the coast of Norway.

Continuer la lecture de Magma Flood Linked To Sudden Ancient Global Warming Event →

better to know...?, climate-debate, pollution-contamination

Ships’ emissions create measurable regional change in clouds

by  University of Washington, March 24, 2020 in ScienceDaily

A container ship leaves a trail of white clouds in its wake that can linger in the air for hours. This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution.

New research led by the University of Washington is the first to measure this phenomenon’s effect over years and at a regional scale. Satellite data over a shipping lane in the south Atlantic show that the ships modify clouds to block an additional 2 Watts of solar energy, on average, from reaching each square meter of ocean surface near the shipping lane.

The result implies that globally, cloud changes caused by particles from all forms of industrial pollution block 1 Watt of solar energy per square meter of Earth’s surface, masking almost a third of the present-day warming from greenhouse gases. The open-access study was published March 24 in AGU Advances, a journal of the American Geophysical Union.

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climate-debate

EARTH’S TEMPERATURE PLUNGED IN MARCH — GLOBAL COOLING FROM HERE ON OUT

by Cap Allon, April 2, 2020 in Electroverse

The Global Lower Atmosphere plunged 0.28C in March to 0.48C, from its (expected early-year) high of 0.76C in February. Looking at the Sun, the cycles, the past, and the graphs, it is reasonable to assume there’s only one trend from here on out, and that’s down…

Take the previous anomalous “warming spikes” on the UAH Satellite-Based Temperature of the Global Lower Atmosphere chart (below) — they generally occur at the beginning of a year, and then are quickly followed by a sharp downward plunge:

www.drroyspencer.com/

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better to know...?, climate-debate

The Next Great Extinction Event Will Not Be Global Warming – It Will Be Global Cooling

by A. MacRae, September 1, 2019 in WUWT

CATASTROPHIC GLOBAL WARMING IS A FALSE CRISIS – THE NEXT GREAT EXTINCTION WILL BE GLOBAL COOLING

Forget all those falsehoods about scary global warming, deceptions contrived by wolves to stampede the sheep. The next great extinction event will not be global warming, it will be global cooling. Future extinction events are preponderantly cold: a glacial period, medium-size asteroid strike or supervolcano. Humanity barely survived the last glacial period that ended only 11,500 years ago, the blink-of–an-eye in geologic time.

Cold, not heat, is by far the greater killer of humanity. Today, cool and cold weather kills about 20 times as many people as warm and hot weather. Excess Winter Deaths, defined as more deaths in the four winter months than equivalent non-winter months, total over two million souls per year, in both cold and warm climates. Earth is colder-than-optimum for humanity, and currently-observed moderate global warming increases life spans.

“Cold Weather Kills 20 Times As Many People As Hot Weather”

By Joseph D’Aleo and Allan MacRae, September 4, 2015

https://friendsofsciencecalgary.files.wordpress.com/2015/09/cold-weather-kills-macrae-daleo-4sept2015-final.pdf

However, Excess Winter Deaths are not the worst threats to humanity. The glacial cycle averages about 100,000 years, consisting of about 90,000 years of the glacial period, when mile-thick continental glaciers blanketed much of the Northern and Southern Hemispheres including Canada, Russia, Northern Europe and Northern USA, and about 10,000 years of interglacial, the warm period of the present. Earth is now 11,500 years into the current warm interglacial, and our planet may re-enter the glacial period at any time.

“Glacial-Interglacial Cycles”

https://www.ncdc.noaa.gov/abrupt-climate-change/Glacial-Interglacial%20Cycles

https://www.ncdc.noaa.gov/sites/default/files/styles/716px_width/public/glacial-interglacial.jpg?itok=19bwFcU9

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better to know...?, climate-debate

The UAH Global Temperature Dataset at 30 Years: A Look Back at the Early Days

by Dr. Roy Spencer, March 31, 2020 in GlobalWarming

Today (Monday, March 30) is the 30th anniversary of our publication in Science describing the first satellite-based dataset for climate monitoring.

While much has happened in the last 30 years, I thought it might be interesting for people to know what led up to the dataset’s development, and some of the politics and behind-the-scenes happenings in the early days. What follows is in approximate chronological order, and is admittedly from my own perspective. John Christy might have somewhat different recollections of these events.

Some of what follows might surprise you, some of it is humorous, and I also wanted to give credit to some of the other players. Without their help, influence, and foresight, the satellite temperature dataset might never have been developed.

 

Continuer la lecture de The UAH Global Temperature Dataset at 30 Years: A Look Back at the Early Days →

biology+acidification, climate-debate

Coral tells own tale about El Niño’s past

by Rice University, March 27, 2020 in WUWT

HOUSTON – (March 26, 2020) – There is no longer a need to guess what ocean temperatures were like in the remote tropical Pacific hundreds of years ago. The ancient coral that lived there know all.

A study in Science led by Rice University and Georgia Tech researchers parses the record archived by ancient tropical Pacific coral over the past millennium. That record could help scientists refine their models of how changing conditions in the Pacific, particularly from volcanic eruptions, influence the occurrence of El Niño events, which are major drivers of global climate.

They found the ratio of oxygen isotopes sequestered in coral, an accurate measure of historic ocean temperatures, shows no correlation between estimates of sulfate particles ejected into the atmosphere by tropical volcanic eruptions and El Niño events.

That result could be of particular interest to scientists who suggest seeding the atmosphere with sun-blocking particles may help reverse global warming.

According to Rice climate scientist and primary author Sylvia Dee, previous climate model studies often tie volcanic eruptions, which increase sulfate aerosols in the atmosphere, to increased chances for an El Niño event. But the ability to analyze climate conditions based on oxygen isotopes trapped in fossil corals extends the climatological record in this key region across more than 20 ancient eruptions. Dee said this allows for a more rigorous test of the connection.

“A lot of climate modeling studies show a dynamical connection where volcanic eruptions can initiate El Niño events,” Dee said. “We can run climate models many centuries into the past, simulating volcanic eruptions for the last millennium.

“But the models are just that — models — and the coral record captures reality.”

Coral data that Georgia Tech climate scientist Kim Cobb and her team arduously collected on trips to the Pacific show little connection between known volcanoes and El Niño events over that time. Like tree rings, these paleoclimate archives hold chemical indicators, the oxygen isotopes, of oceanic conditions at the time they formed.

The coral data yields a high-fidelity record with a resolution of less than a month, tracking the El Niño-Southern Oscillation (ENSO) in the heart of the central tropical Pacific.

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climate-debate

EUROPE’S BIG SPRING FREEZE — ARCTIC BLAST TO GRIP THE CONTINENT DELIVERING SUB-ZERO TEMPERATURES AND RARE APRIL SNOW

by Cap Allon, March 27, 2020 in Electroverse

Latest GFS runs are forecasting a truly frosty and snowy next 7+ days for the majority of Europe, as winter continues to encroach ever-further into spring — a phenomenon long-predicted by those who study the Sun’s impact on climate.

Beginning this weekend, brutal Arctic cold will engulf practically ALL of Europe sinking temperatures some 16C below-the-seasonal-average for many:

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…and there’s plenty more where that came from.

GFS runs are predicting rare April snow accumulating during the next 14-or-so days, particularly in Norway, Sweden, NE Russia, Latvia, Lithuania, Belarus, Ukraine, the Balkans, Italy, the Alps, Spain, and even the UK (also, note the substantial falls in Eastern Turkey, Georgia, Armenia and Azerbaijan):

 

Past civilizations shown to peak during times of warmth (Grand Solar Maximums), and then almost-instantly collapse during the subsequent & sharp cool-downs (Grand Solar Minimums).

And these COLD TIMES are returning, in line with historically low solar activity, cloud-nucleating Cosmic Rays, and a meridional jet stream flow.

Even NASA agrees, in part at least, with their forecast for this upcoming solar cycle (25) revealing it will be “the weakest of the past 200 years,” with the agency correlating previous solar shutdowns to prolonged periods of global cooling here.

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climate-debate

GREENLAND’S SMB GAINED 6 GIGATONS YESTERDAY + NORTHERN HEMISPHERE SNOW MASS SITTING AT 500 GIGAGTONS ABOVE THE NORM

by Cap Allon, March 29, 2020 in Electroverse

Despite decades of doom-and-gloom prophecies, Greenland’s Ice Sheet is currently GAINING monster amounts of “mass”— 6 gigatons yesterday alone (March 28, 2020).

Crucial to the survival of a glacier is its surface mass balance (SMB)–the difference between accumulation and ablation (sublimation and melting). Changes in mass balance control a glacier’s long-term behavior, and are its most sensitive climate indicators (wikipedia.org).

On the back of substantial SMB gains over the past few years, the Greenland ice sheet looks set to continue that trend in 2019-20. On March 28, 2020, the world’s largest island added a monster 6 gigatons to its ice sheet. According to climate alarmists, this simply shouldn’t be happening in a warming world. In fact, it might as well not be happening–developments like this NEVER receive MSM attention, meaning alarmists are NEVER privy to the full and unalarming picture…

polarportal.dk/

In addition, Total Snow Mass for the Northern Hemisphere continues to track WELL-above average with the latest data point (March 27) seeing NH snow at a staggering 500+ gigatons above the norm—another real-world reality we were told should be an impossibility by now: IPCC 2001: “Milder winter temperatures will decrease heavy snowstorms…”

Continuer la lecture de GREENLAND’S SMB GAINED 6 GIGATONS YESTERDAY + NORTHERN HEMISPHERE SNOW MASS SITTING AT 500 GIGAGTONS ABOVE THE NORM →

better to know...?, climate-debate

Les idéologues de l’hystérie climatique vus à l’ombre du Coronavirus

by Samuel Furfari, 26 mars 2020 in LaTribune

OPINION. Il semble morbide et cynique, alors que des milliers de personnes meurent du Coronavirus, d’insister en ce moment sur l’impérieuse nécessité d’agir contre le changement climatique. Pourtant, des idéologues, qui sont aussi et surtout ceux de la remise en cause de l’économie de marché, osent le faire. Ils ne ratent aucune occasion d’essayer de faire croire que le changement climatique cause ou exacerbe cette crise. Il est nécessaire de les dénoncer pour préparer l’avenir. Par Samuel Furfari, Professeur à l’Université Libre de Bruxelles et Président de la Société Européenne des Ingénieurs et Industriels.

Un climatologue français semble regretter que « ce qu’on fait pour le Coronavirus, c’est deux ans de financement climat » car, d’après lui, si on dépense de l’argent pour sauver des vies, on pourrait tout aussi bien redoubler d’effort pour sauver la planète. Un climatologue belge a eu l’outrecuidance de tweeter à la Première ministre belge et à son vice-Premier ministre en charge du budget qu’ils profitent de cette crise pour introduire une taxe sur l’énergie : « #Covid_19 : C’est le bon moment pour instaurer une vraie taxe CO2 sur les carburants, le mazout [fioul en Belgique] et le gaz fossile. Leur prix ayant fortement baissé, ce sera indolore. Cela permettra de dégager des ressources pour compenser les effets de la crise. » Sur Facebook, ce membre éminent du GIEC s’est fait traiter de « charognard », entre autres épithètes. En pleine crise, « presque hilare », un commentateur politique bien connu a apprécié que ce « virus révolutionnaire » empêchait la privatisation des aéroports de Paris et  s’en est pris aux « banques mondiales [qui] échouent lamentablement face à la crise climatique en injectant des billions dans les combustibles fossiles».

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climate-debate

Les glaces terrestres, la cryosphère (2/3)

by J.C. Maurin, 27 mars 2020 in ScienceClimatEnergie

Partie 2/3 : Lecture critique du chapitre cryosphère de l’AR5

par J.C. Maurin, Professeur agrégé de physique

Cette deuxième partie de l’article examine la composition du chapitre 4 du 5ème rapport du GIEC (AR5) [1].
Dans ce chapitre, qui concerne les différentes composantes de la cryosphère, les banquises [2] et glaciers [3] sont particulièrement mises en avant par les rédacteurs du GIEC.
A propos de ces 2 composantes mineures (0,65 % du volume de la cryosphère), l’article développe certains éléments d’appréciation que les rédacteurs de l’AR5 n’ont pas mis en exergue.

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Continuer la lecture de Les glaces terrestres, la cryosphère (2/3) →

better to know...?, climate-debate

Heartland Institute Launches ClimateRealism.com

by P. Homewood, March 24, 2020 in NotaLotofPeopleKnowThat

WUWT has news of a new website launched by the Heartland Institute, to augment the excellent factchecking site, Climate At A Glance:

Nearly every day, the establishment media promotes new climate propaganda themes designed to scare people into believing a climate crisis is at hand. When the Climate Scare goes unrebutted, people are likely to believe by default that the propaganda is true. Yet most of the media’s climate propaganda is misleading or outright false. ClimateRealism.com will address and debunk the media’s most prominent climate-related tall tales.

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climate-debate

Absence of evidence for greenhouse warming over the Arctic Ocean-Mark Serreze 1990

by P. Homewood, March 23, 2020 in NotaLotofPeopleKnowThat

We are familiar with the incessant claims that the Arctic is one of the fastest warming regions on Earth, and that this is due to the polar amplification effect of greenhouse gases.

But scientists back in the 1990s found that this theory did not stack up then:

Abstract

ATMOSPHERIC general circulation models predict enhanced greenhouse warming at high latitudes1owing to positive feedbacks between air temperature, ice extent and surface albedo2–4. Previous analyses of Arctic temperature trends have been restricted to land-based measurements on the periphery of the Arctic Ocean5,6. Here we present temperatures measured in the lower troposphere over the Arctic Ocean during the period 1950–90. We have analysed more than 27,000 temperature profiles, measured by radiosonde at Russian drifting ice stations and by dropsonde from US ‘Ptarmigan’ weather reconnaissance aircraft, for trends as a function of season and altitude. Most of the trends are not statistically significant. In particular, we do not observe the large surface warming trends predicted by models; indeed, we detect significant surface cooling trends over the western Arctic Ocean during winter and autumn. This discrepancy suggests that present climate models do not adequately incorporate the physical processes that affect the polar regions.

https://www.nature.com/articles/361335a0

The cooling between 1950 and 1990 is very evident at a whole range of land sites on the fringes of the Arctic, ranging from Greenland right through to eastern Siberia.

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