Archives par mot-clé : History

Decembers 1961 & 1971

by P. Homewood, Jan 7, 2022 in NotaLotofPeopleKnowThat


December 1961 can be summed up in two words – cold and snow. The month was the 9th coldest on record since 1884.

The first week saw widespread snow and severe gales, whilst the Christmas week was one of the coldest of the century, with more heavy snow:

In this monthly lookback through the archives, two things are abundantly clear for every month we have checked:

1) Weather was every bit as extreme in the past

2) The weather can vary enormously from one year to another. This can not be better exemplified than the series for December, which has offered up very mild months to very cold ones, very dry ones to very wet, and very snowy ones to very little snow.

New Research: “CO2 Influence On Global Temperature Development Since1860 Only Half As Large As IPCC Estimate!

by  F. Vahrenholt, Dec 14, 2021 in NoTricksZone

On November 3, 2021, the renowned scientific journal Climate published a paper on solar influence on climate.

The paper by the renowned solar researcher Dr. Frank Stefani from the Helmholtz Zentrum Dresden-Rossendorf is entitled: “Solar and Anthropogenic Influences on Climate: A Regression Analysis and Tentative Predictions” and concludes that the influence of CO2 on the development of global temperatures from 1860 until today was only about half as large as the last report of the Intergovernmental Panel on Climate Change (IPCC) assumed.

As a reminder, the IPCC concludes that 98% of the warming ( 1.07 degrees out of 1.09 degrees) is human-induced. According to Stefani’s analysis, the solar influence accounts for 30-70%.

Stefani examined the course of the geomagnetic aa – index, which reflects the strength of the earth’s magnetic field. This index has been measured in Cambridge and Melbourne since 1844 and reflects the influence of solar activity. In earlier publications, Stefani had already been able to prove that the 11-year solar cycle is triggered by the gravitational forces of Venus, Earth and Jupiter, which are in orbital resonance every 11.07 years (here, here and here).

Since the Sun – influenced by all the planets (especially Jupiter and Saturn) – also moves around the center of gravity of the solar system, solar cycles arise that have become known in temperature history as the 193-year Suess-de Vries cycle and the 90-year Gleissberg cycle.

The Arctic Ocean began warming decades earlier than previously thought, new research shows

by P. Homewood, Nov 27, 2021 in NotaLotofPeopleKnowThat

A new study throws doubt on the theory that Arctic warming is man made.

The Arctic Ocean has been warming since the onset of the 20th century, decades earlier than instrument observations would suggest, according to new research.

The study, published Wednesday in the journal Science Advances, found that the expansion of warm Atlantic Ocean water flowing into the Arctic, a phenomenon known as “Atlantification,” has caused Arctic water temperature in the region studied to increase by around 2 degrees Celsius since 1900.

Francesco Muschitiello, an author on the study and assistant professor of geography at the University of Cambridge, said the findings were worrisome because the early warming suggests there might be a flaw in the models scientists use to predict how the climate will change.

The climate moaners need to get some perspective from history

by Ian Plimmer, Nov 4, 2021, SpectatorAustralia

Greta Thunberg rejects all ideas of the enlightenment. Despite what she wails, she is now living in the best times ever to be a child on planet Earth. She can actually go to FLOP26, something that few of us would want to do. Would she prefer to live in the worst of times when there was panic, suffering, environmental damage, death and no hope which she claims exists today?  

We now eat better, are less affected by natural disasters and are able to cope with extremes of weather and climate. During the last 4 of at least 20,000 generations of humans, child mortality has decreased and global human longevity increased from 25 to 79 years. The climate moaners need to get some perspective from history. 

The worst years to live since the time of Jesus were 535-550 AD because massive volcanic eruptions, perhaps Kamchatka or Alaska in 535-536 AD and Ilopango in El Salvador from 539-540 AD. The Northern Hemisphere atmosphere with filled with dust and acid sulphate clouds. These volcanic eruptions were coincidental with extraterrestrial impacts in March 536 AD in the Gulf of Carpentaria and elsewhere in August 536 AD. To make matters worse, these were at the time of a Solar Minimum. 

The Sun was dimmed for 18 months, a white sulphuric acid aerosol cloud enveloped Europe, global temperature dropped by 1.5 to 2.5°C producing worldwide crop failures and death by starvation. There was migration (e.g. Slavic speaking people), political turmoil and the collapse of empires (e.g. Sasanian Empire in Persia). Tree rings show almost no growth for a few years.  


Continuer la lecture de The climate moaners need to get some perspective from history

New Data Suggest Greenland’s Relative Sea Levels Were 6 Meters Higher 1,500-2,000 Years Ago

by K. Richard, Oct 28, 2021 in NoTricksZone

The discovery of whale bones and marine shells at ancient beach sites 32 to 36 meters above today’s shorelines have been dated to the Early to Middle Holocene. Beach ridges were still several meters higher than today during Roman and Medieval times.

The relative sea levels of the ancient past can be discerned by identifying the span of years marine shells were deposited on ancient beaches. Also, whales were as likely to wash up on shore thousands of years ago as they do today.

A new study (Souza et al., 2021) uses an alternative dating method to identify when beach ridge systems were still collection sites for sea shells along the west coast of Greenland (Disko Island). The authors find it “particularly interesting” that beach ridges were still elevated ~6 meters above modern sea levels less than 2,000 years ago, as previous studies have suggested the Disko Bay region’s sea levels should have fallen to below present sea level by this time.

The authors also determined the marine shells located 32 meters above present Disko Island shorelines can be dated to about 5,300 years ago. Whale carcasses collected at sites elevated 36 meters above modern have been dated to the Early Holocene.

The highest sea levels of the Holocene, or the Holocene Marine Limit, has been dated to ~9000 years ago. At that time deposits of sea shells on the southwest coast of Disko were as much as “~70 to 80 m above present sea level.”

4 More New Reconstructions Affirm The Medieval Warm Period Was ‘Warmer Than Today’

by K. Richard, Oct 14, 2021 in NoTricksZone

From Russia to the Indian Ocean to Antarctica, surface temperatures were much warmer than  they are today during Medieval times.

1. The Eastern Russia region was 1.5°C warmer than now during the Medieval Warm Period. The modern warm-up began centuries ago and temperatures have declined in the last few centuries. Relative sea levels were 1 m higher than now 1,000 years ago.

Nazarova et al., 2021



2. Scientists use coral fossil evidence to suggest mean sea surface temperatures (SST) during the Medieval Climate Anomaly were “warmer than today”. At the two Indian Ocean study sites, there has been no obvious SST warming since 1982.

Yudawati Cahyarini et al., 2021

3. The modern (1994-2004) surface temperatures in the South China Sea are colder now than any time in the last 6000 years. Except for a brief interval ~500 years ago, SSTs have been consistently 2-4°C warmer than today since the middle Holocene.

Zhou et al., 2021


4. Modern sea ice extent for Antarctica’s Ross Sea is more extensive today (and temperatures cooler) than nearly any time in 6000 years.  It was warmer with less sea ice 1.6 to 0.7k years ago. Penguin numbers decline with cooling/increased sea ice.

Xu et al., 2021

New Study: 2000-Year Precipitation Reconstructions Expose Climate Models Still Of Junk Grade

by Atwood et al., Aug 18, 2021 in NoTricksZone

A new study by Atwood et al (2021) published in the journal of Paleoceanography and Paleoclimatology found there’s “poor agreement” between precipitation reconstructions and model simulations over the past 2000 years. This means future projections made by current models are unreliable. 


Models and reconstructions don’t agree

These comprehensive reconstructions show that from 800 to 1000 CE there was a pronounced drying event relative from the eastern Pacific and parts of Mesoamerica.

Also the period “1400–1700 CE is marked by pronounced hydroclimate changes across the tropics, including dry and/or isotopically enriched conditions in South and East Asia, wet and/or isotopically depleted conditions in the central Andes and southern Amazon in South America, and fresher and/or isotopically depleted conditions in the Maritime Continent.”

The study’s abstract also notes how there’s a glaring disagreement between the simulations done by models and what the reconstructions show: “We find notable dissimilarities between the regional hydroclimate changes and global-scale and hemispheric-scale temperature reconstructions, indicating that more work needs to be done to understand the mechanisms of the widespread tropical hydroclimate changes during the LIA.”

Strong Link Between Solar Activity And Rapid Cooling (2-3°C/Century) In China During The Last 5000 Years

by K. Richard , July 5, 2021 in NoTricksZone

China’s climate history includes multiple climate warming and cooling fluctuations of 4°C within centuries, with cold periods aligning with declines in solar irradiance.

According to a new study (Zhang et al., 2021), northern China’s coldest temperatures of the last 5000 years occurred 300 calibrated years before present (cal yr BP), coinciding with the Little Ice Age and a decrease in solar irradiance. This  frigid period was was followed by a ~4°C  warm-up (from about 3.5°C to 7.5°C) within the span of about 150 years during the middle of the Qing Dynasty (1644-1912 CE), which was well before anthropogenic CO2 emissions began sharply rising.

The warmest temperatures of the last millennium occurred during the Medieval Warm Period (Song Dynasty, 960-1279 CE).

Rapid cooling periods of multiple degrees per century also coincided with the collapse of ancient civilizations, or dynasties, as wars and social unrest were often associated with competition for access to natural resources (such as water during droughts).

Heatwave Reporting Shows How Science Has Been Corrupted By Climate Groupthinktch

by A. Watts, July 1, 2021 in ClimateChangeDispatch

The headline in E&E News, WOWT-TV, Scientific American, WorldNewsNetwork, and other media outlets this week, “Unprecedented Heat Wave in Pacific Northwest Driven by Climate Change” couldn’t possibly be more unscientific.

With absolutely no analysis, no historical context, and nothing but conjecture, author Anne. C. Mulkern eschewed science for advocacy in her reporting of the brief Pacific Northwest (PNW) heatwave this week.

Yes, the heatwave set all-time high-temperature records in Washington, Oregon, and Canada. But consider this: At best, we have about 150 years of reliable weather records for the PNW, so a “black swan” outlier eventlike this isn’t surprising.

It’s happened before, most certainly. We just weren’t around to observe it. After all, Native Americans did not keep written weather records.

High- (and low-) temperature records are nothing new. But it is important to look at the past because data shows us that more high-temperature records were set during the first half of the twentieth century than during the past 50 years.

Even the Environmental Protection Agency (EPA) confirms this.

Medieval weather prediction

by A. Lawrence_Mathers, Apr 1, 2021 PhysicsToday

In August 1861 the London-based newspaper The Times published the world’s first “daily weather forecast.” The term itself was created by the enterprising meteorologist Robert FitzRoy, who wanted to distance his work from astrological “prognostications.” That story has led to a widespread assumption that weather forecasting is an entirely modern phenomenon and that in earlier periods only quackery or folklore-based weather signs were available.

The anatomy of past abrupt warmings recorded in Greenland ice

by C. Rotter, Apr 19, 2021 in WUWT/Nature

New paper at Nature Communications


Data availability and temporal resolution make it challenging to unravel the anatomy (duration and temporal phasing) of the Last Glacial abrupt climate changes. Here, we address these limitations by investigating the anatomy of abrupt changes using sub-decadal-scale records from Greenland ice cores. We highlight the absence of a systematic pattern in the anatomy of abrupt changes as recorded in different ice parameters. This diversity in the sequence of changes seen in ice-core data is also observed in climate parameters derived from numerical simulations which exhibit self-sustained abrupt variability arising from internal atmosphere-ice-ocean interactions. Our analysis of two ice cores shows that the diversity of abrupt warming transitions represents variability inherent to the climate system and not archive-specific noise. Our results hint that during these abrupt events, it may not be possible to infer statistically-robust leads and lags between the different components of the climate system because of their tight coupling.

Climate Catastrophe In The 17thC – Geoffrey Parker

by P. Homewood, Apr 9, 2021 in NotaLotofPeoppleKnowThat



Amazon’s blurb sets the scene:

Revolutions, droughts, famines, invasions, wars, regicides – the calamities of the mid-seventeenth century were not only unprecedented, they were agonisingly widespread.  A global crisis extended from England to Japan, and from the Russian Empire to sub-Saharan Africa. North and South America, too, suffered turbulence. The distinguished historian Geoffrey Parker examines first-hand accounts of men and women throughout the world describing what they saw and suffered during a sequence of political, economic and social crises that stretched from 1618 to the 1680s. Parker also deploys scientific evidence concerning climate conditions of the period, and his use of ‘natural’ as well as ‘human’ archives transforms our understanding of the World Crisis. Changes in the prevailing weather patterns during the 1640s and 1650s – longer and harsher winters, and cooler and wetter summers – disrupted growing seasons, causing dearth, malnutrition, and disease, along with more deaths and fewer births. Some contemporaries estimated that one-third of the world died, and much of the surviving historical evidence supports their pessimism.



Amongst these catastrophic events, Parker lists:


Early 17thC

1) West Africa, from the Sahel in the north to Angola in the south, suffered a prolonged drought between 1614 and 1619.

2) Catalonia suffered “the year of the flood” in 1617.

3) All Europe experienced an unusually cold winter in 1620/21, when many rivers froze so hard for 3 months that they could bear the weight of loaded carts; even the Bosphorus froze, an unheard of event.

4) Japan suffered its coldest spring of the century in 1616, while the sub tropical region of Fujian in China had heavy snowfall two years later, another extremely rare event.

5) Droughts in five years out of six between 1616 and 1621 almost the destroyed the new colonies in Virginia.

6) After a few better years, the summer of 1627 in Europe was the wettest for 500 years, followed by the “year without a summer” in 1628, when it was so cold that many crops never ripened.

7) Between 1629 and 1632, much of Europe suffered excessive rains, followed by drought.

8) Conversely, northern India suffered a “perfect drought” in 1630/31, followed the next year by catastrophic floods.

Parker notes that “all of these regions experienced dramatic falls in population

Long Term Changes on the Grindelwald Glacier

by P. Homewood, March 28, 2021 in IowaClimSciEducation

The Upper & Lower Grindelwald Glaciers in 1774 by Caspar Wolf

HH Lamb’s Climate, History and The Modern World tells us much about the history of Alpine glaciers. For instance, how they advanced rapidly between 800 and 400 BC. They then retreated before advancing again between AD 600 and AD 850, when they may have even reached Little Ice Age maximum extents.

We are probably all familiar with the terrifying glacier advances, which began in the 17thC, following centuries of a much warmer climate. These were catastrophic for anybody living nearby, as farming land was wiped out, and even the land that escaped being overrun was far too cold to farm. As a result, famine was rife in Switzerland and elsewhere, even in cities which relied on the countryside for food.

People living in those days would have been dumfounded to hear that there are some now who are worried that glaciers are getting smaller.


A paper by Zumbuhl et al, published in 2006, offers a detailed history of the Lower Grindelwald glacier, as well as the Mer de Glace in the Mont Blanc region:

Study Shows Arctic Sea Ice Reached Lowest Point On Modern Record… In The 1940s, Not Today!

by C. Rotter, Jan 24, 2021 in WUWT

Regular NoTricksZone author Kenneth Richards notes on Twitter

Apparently Arctic sea ice volume was as low in the 1940s as it has been in the 2000s.

And the highest sea ice volume of the last 100 years was about 1979 – the year the Arctic sea ice record begins.


Guillian Van Achter1, Leandro Ponsoni1, François Massonnet1, Thierry Fichefet1, and Vincent Legat2

  • 1Georges Lemaitre Center for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
  • 2Institute of Mechanics, Materials and Civil Engineering, Applied Mechanics and Mathematics, Université Catholique de Louvain, Louvain-la-Neuve, Belgium

Correspondence: Guillian Van Achter ( Received: 04 Dec 2019 – Discussion started: 10 Dec 2019 – Revised: 17 Jul 2020 – Accepted: 09 Sep 2020 – Published: 21 Oct 2020


We use model simulations from the CESM1-CAM5-BGC-LE dataset to characterise the Arctic sea ice thickness internal variability both spatially and temporally. These properties, and their stationarity, are investigated in three different contexts: (1) constant pre-industrial, (2) historical and (3) projected conditions. Spatial modes of variability show highly stationary patterns regardless of the forcing and mean state. A temporal analysis reveals two peaks of significant variability, and despite a non-stationarity on short timescales, they remain more or less stable until the first half of the 21st century, where they start to change once summer ice-free events occur, after 2050.

How to cite. Van Achter, G., Ponsoni, L., Massonnet, F., Fichefet, T., and Legat, V.: Brief communication: Arctic sea ice thickness internal variability and its changes under historical and anthropogenic forcing, The Cryosphere, 14, 3479–3486,, 2020.1

Claim: The Temperature Spike Just Prior to the Little Ice Age can Teach Us about Modern Global Warming

by E. Worall, Jan 7, 2021 in WUWT

According to Patric Seifert, a tropospheric researcher at the Leibniz Institute in Germany, a large scale temperature spike occurred just before the onset of the Little Ice Age. Seifert does not think global temperatures are about to crash, but he thinks conditions in Europe are similar enough to the 14th century that historical reconstructions of this medieval heatwave, the Dantean Anomaly, can help us understand what we will face as the world continues to warm.

Extreme 14th Century Droughts May Provide Insight Into Our Climate Change Crisis 

9 JANUARY 2021

Scientists are studying a major, once-in-a-century drought from Medieval Europe to better understand how extreme weather events indicate rapid climate changes.

In the years leading up to the Little Ice Age, between 1302 and 1307, many regions on the European continent were facing exceptional heat and drought, according to historical records and data collected from tree rings and sediment cores.

These extreme natural events, while not driven by human emissions, hold similar characteristics to recent weather anomalies, and they could help us better predict the course of modern-day climate change.

“Even if it was a phase of cooling in the Middle Ages and we are now living in a phase of [hu]man-made warming, there could be parallels,” says Patric Seifert, a tropospheric researcher at the Leibniz Institute in Germany.

“The transitional period between two climate phases could be characterized by smaller temperature differences between the latitudes and cause longer-lasting large-scale weather patterns, which could explain an increase in extreme events.“

Today’s Iceland Colder, Icier Than In Last 8,000 Years (Except the 1800s)

by K. Richard, Dec 15, 2020 in ClimateChange Dispatch

A wealth of new research in glacier and sea ice extent shows modern Iceland is 2-4°C colder than all of the last 8,000 years except for a slightly colder late 19th century.

Even the 1700s were warmer with less ice than today in and around Iceland.

A new study (Geirsdóttir et al., 2020) now affirms peak Holocene warmth at least “∼3–4 °C above modern in Iceland” prevailed throughout much of the last 8,000 years.

Data from tree growth, glacier-induced soil erosion, algae productivity, sea ice biomarker proxies (IP25), and other climate indices affirm these conclusions.

Harning et al., 2020 report an overall 7°C Holocene cooling trend In Iceland’s surrounding sea surface temperatures (SST).

“In terms of foraminifera-reconstructed SST, there is an overall trend of cooling throughout the last 8 ka from ~10 °C to ~3 °C.”


It is only in the last few centuries of the modern era that temperatures sharply plummeted to their lowest values of the last 10,000 years (Geirsdóttir et al., 2020).

“The coolest climate of the last 10 ka occurred in the late 1800s CE.”

Consequent to the peak cooling, glaciers and sea ice reached their maximum extents of the Holocene just 150 years ago.

While Iceland’s glaciers and North Shelf sea ice extent did partially recover in the first half of the 20th century, the ice extents are still beyond what they were in the 1700s and earlier.

There is nothing to indicate modern warmth or ice recession in and around Iceland is unprecedented or even unusual.

Read more at No Tricks Zone

Claim: The climate changed rapidly alongside sea ice decline in the north

by University of Copenhagen, Dec 6, 2020 in WUWT

Researchers from the Niels Bohr Institute, University of Copenhagen have, in collaboration with Norwegian researchers in the ERC Synergy project, ICE2ICE, shown that abrupt climate change occurred as a result of widespread decrease of sea ice. This scientific breakthrough concludes a long-lasting debate on the mechanisms causing abrupt climate change during the glacial period. It also documents that the cause of the swiftness and extent of sudden climate change must be found in the oceans.

Scientific evidence for abrupt climate change in the past finally achieved

During the last glacial period, app. 10,000 – 110,000 years ago the northern hemisphere was covered in glacial ice and extensive sea ice, covering the Nordic seas. The cold glacial climate was interrupted by periods of fast warmup of up to 16.5 degrees Celsius over the Greenland ice sheet, the so called Dansgaard Oeschger events (D-O).

These rapid glacial climate fluctuations were discovered in the Greenland ice core drillings decades ago, but the cause of them have been hotly contested. D-O events are of particular significance today as the rate of warming seems to be very much like what can be observed in large parts of the Arctic nowadays. The new results show that the abrupt climate change in the past was closely linked to the quick and extensive decline in sea ice cover in the Nordic seas. Very important knowledge as sea ice is presently decreasing each year.

“Our, up until now, most extensive and detailed reconstruction of sea ice documents the importance of the rapid decrease of sea ice cover and the connected feedback mechanisms causing abrupt climate change”, says Henrik Sadatzki, first author of the study.

Sediment core and ice core data were combined in order to achieve the result

Roger Revelle – the backstory of the father of Atmospheric CO2 monitoring

by A. May, Oct 321, 2020 in WUWT

Roger Revelle was an outstanding and famous oceanographer. He met Al Gore, in the late 1960s, when Gore was a student in one of his classes at Harvard University. Revelle was unsure about the eventual impact of human carbon dioxide emissions on climate, but he did show that all carbon dioxide emitted by man would not be absorbed by the oceans. For an interesting discussion of Revelle’s work in this area see this post on “The Discovery of Global Warming,” by Spencer Weart (Weart, 2007). The original paper, on CO2 absorption by the oceans, published in 1957 by Roger Revelle and Hans Suess, is entitled: “Carbon Dioxide Exchange Between Atmosphere and Ocean and the Question of an Increase of Atmospheric CO2, during the Past Decades” (Revelle & Suess, 1957). This meant that human emissions of carbon dioxide would accumulate in the atmosphere and that the CO2 atmospheric concentration would increase, probably causing Earth’s surface to warm at some unknown rate. This is not an alarming conclusion, as Revelle well knew, but Al Gore turned it into one.

One of Revelle’s good friends was Dr. S. Fred Singer. Singer was a professor of environmental science at the University of Virginia and both Revelle and Singer had been science advisors in the U.S. Department of the Interior. They first met in 1957 and were more than professional colleagues, they were personal friends (Singer, 2003). Unfortunately, Revelle passed away in July 1991 and Singer passed away in April 2020, so we will refer to them and their friendship in the past tense. Both were leading Earth scientists and at the top of their fields, it was natural they would become friends. They also shared an interest in climate change and chose to write an article together near the end of Revelle’s life.


Indeed, ten years later, CO2 emissions were still increasing, but the world had started to cool as shown in Figure 1. This casts considerable doubt on the idea that human emissions somehow control global warming, since some other factor, presumably natural, is strong enough to reverse the overall warming trend for ten years. Revelle was correct to encourage the government to wait for ten more years. Just a year before their paper was published the IPCC reported that warming to date fell within the range of “natural variability” and that the detection of a human influence on climate was “not likely for a decade or more.” (IPCC, 1990, p. XII).

Figure 1. In 1990 and 1991, respectively, the IPCC and Roger Revelle and colleagues said it was too early to do anything about possible man-made climate change, they thought we would know more in 10 years. The plot is smoothed with a 5-year running average to reduce the effect of El Nino and La Nina events. This makes the longer term trends easier to see.

Scientists Find Peak 1940s Warmth, Post-1950s Cooling In The Same Western US Region Where Hockey Sticks Emerged

by K. Richard, Sep 24, 2020 in NoTricksZone

A new 1735-2015 temperature reconstruction (Heeter et al., 2020) using Western US tree ring proxies shows peak 1940s warmth and post-1950s cooling. This is the same region Dr. Michael Mann used tree ring data to construct his famous hockey stick graph.

A new Scandinavian temperature reconstruction (Seftigen et al., 2020) that’s “skillfull in characterizing past temperature changes over the past one to two millennia” finds there

The unfortunate ‘climate anomaly’ of the First World War revealed

by P. Homewood, Sep 4, 2020 in NotaLotofPeopleKnowThat

A new research paper states this anomalous weather coincided with battles where: “The mud and water‐filled trenches and bomb craters swallowed everything, from tanks, to horses and troops, becoming what eyewitnesses described as the ‘liquid grave’ of the armies.”

Prof Alexander F More, who led the research for Harvard, explained: “Atmospheric circulation changed and there was much more rain, much colder weather all over Europe for six years.” “It was a once in a 100-year anomaly.”

This anomaly wreaked havoc on battlefields beginning with the First Battle of Champagne in 1914 , where British, French, and German troops suffered flooded trenches and frostbite while mud “slowed down the movement of troops and artillery”.

The Somme and Verdun in 1916, and the Third Battle of Ypres-Passchendaele in 1917, were slogged out in quagmires caused by the freak downpours which increased casualties.

Royal Artillery signaller John Palmer described his trauma at seeing men “sinking into the slime, dying in the slime” on the Western Front.

WOW!! And no mention of CO2!

Que nous apprend l’Optimum Climatique Romain?

by A. Préat, 4 septembre 2020 in ScienceClimatEnergie

1/ Introduction

SCE a plusieurs fois rapporté que la période actuelle de réchauffement n’est pas exceptionnelle, qu’elle fait partie de cycles décennaux à pluriséculaires de refroidissement et réchauffement qui ont lieu dans des fourchettes de température fort modestes, de l’ordre de 0,15°C par 10 ans. SCE a aussi montré que le CO2 tant incriminé dans ces changements, et surtout l’actuel, n’avait pas de raison d’être, ce gaz venant après l’augmentation de température. Le ‘bouton CO2 ‘ à même d’expliquer ou de ‘justifier’ le battage médiatique quasi-quotidien est donc à ‘la remorque’ de la température et, l’hypothèse de l’effet de serre reste avant tout une hypothèse (exemple ici).