Archives de catégorie : climate-debate

climate-debate

Apparent Atlantic warming cycle likely an artifact of climate forcing

by A.E. Messer & S. Lajeunesse, March 25, 2021 inPennStateNews

This map of the Earth shows the spacial pattern of temperature variance by percentage. The most variance is seen in the tropics with less at the poles. IMAGE: DANIEL J. BROUILLETTE. PENN STATE

UNIVERSITY PARK, Pa. — Volcanic eruptions, not natural variability, were the cause of an apparent “Atlantic Multidecadal Oscillation,” a purported cycle of warming thought to have occurred on a timescale of 40 to 60 years during the pre-industrial era, according to a team of climate scientists who looked at a large array of climate modeling experiments.

The result complements the team’s previous finding that what had looked like an “AMO” occurring during the period since industrialization is instead the result of a competition between steady human-caused warming from greenhouse gases and cooling from more time-variable industrial sulphur pollution.

“It is somewhat ironic, I suppose,” said Michael E. Mann, distinguished professor of atmospheric science and director, Earth System Science Center, Penn State. “Two decades ago, we brought the AMO into the conversation, arguing that there was a long-term natural, internal climate oscillation centered in the North Atlantic based on the limited observations and simulations that were available then, and coining the term ‘AMO.’ Many other scientists ran with the concept, but now we’ve come full circle. My co-authors and I have shown that the AMO is very likely an artifact of climate change driven by human forcing in the modern era and natural forcing in pre-industrial times.”

The researchers previously showed that the apparent AMO cycle in the modern era was an artifact of industrialization-driven climate change, specifically the competition between warming over the past century from carbon pollution and an offsetting cooling factor, industrial sulphur pollution, that was strongest from the 1950s through the passage of the Clean Air Acts in the 1970s and 1980s. But they then asked, why do we still see it in pre-industrial records?

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climate and geology, climate-debate

Is Climate Change Real?

by Robert Lyman,  March 23, 2021 in FriendsofScienceCalgary

Contributed by Robert Lyman © 2021 Full bio here.

Is climate change real? Journalists in Canada have had a field day with that question since it was debated at the Conservative Party policy meeting on March 20, 2021. It is the perfect question to ask if you want to boil a mind-numbingly complex set of issues into a simple question that can be used to misinform and confuse people. The proper answer to that question is another one. To what part of the climate policy conundrum are you referring?

You see, the “realness” (or truthfulness, or even importance) of climate policy depends on the answer to several questions, not one. Let’s break them down, and comment ever so briefly on the possible answers.

Is global warming occurring?

The global climate has been changing for millions of years, with temperatures rising and falling. They were as high as they are today during Roman times and the Medieval Warm Period. Since 1850, global average temperatures have risen slightly more than one degree Celsius.

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climate-debate

We’re Not Gonna Drown! Analyses Show COASTAL SEA LEVEL RISE Is Only 1.69 mm Per Year!

by P. Gosselin, March 23, 2021 in NoTricksZone

UPDATE: Sea level rise near the coasts where people actually live is found to be 1.69 mm/yr. But when crunching the data for the entire ocean, as Willis Eschenbach has shown, a figure of just 1.52 mm/year is computed. 

Hot shot data analyst Zoe Phin at her site examines sea level rise.

There she notes, “Climate alarmists are worried that the sea level is rising too fast and flooding is coming soon. You can find many data images like this on the net:”

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climate-debate, energy and fields

CLIMATE CHANGE, COVID-19, AND THE GREAT RESET

by A. MacRae, March 2021 in Elecroverse

The below treatise was sent to Canadian and American politicians and the media – but most of them won’t understand it, because they have no scientific competence and have been utterly deceived – programmed for decades by false climate scares and green energy frauds.

SUMMARY

We published in 2002 that there was NO catastrophic human-made global warming /climate change crisis, and green energy schemes were NOT green and produced little useful (dispatchable) energy. Dangerous global warming and climate change have NOT HAPPENED and green energy schemes have proved to be COSTLY, UNRELIABLE AND INEFFECTIVE. Global warming is NOT a threat, but global cooling IS dangerous. In 2002 we predicted that global cooling would start circa 2020, based on low solar activity, and that prediction is increasingly supported by the evidence.

Politicians foolishly accepted very-scary global warming falsehoods and brewed the perfect storm, crippling our energy systems with costly and unreliable green energy schemes that utterly fail due to intermittency, at a time when we will need more reliable, dispatchable energy due to increased energy demand and imminent global cooling. The good people of Australia, Britain, Germany, California and Texas have all suffered and died due to green energy failures that were PREDICTABLE AND PREDICTED.

THE GREENS’ PREDICTIVE CLIMATE AND ENERGY RECORD IS THE WORST

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climate-debate

Twice as much carbon flowing from land to ocean than previously thought

by Institute for Basic Science, March 18, 2021 in WUWT 

Every year 600-900 million tons of carbon flow through rivers to the ocean either as particles or in dissolved form. Researchers have known for a long time that this does not represent the total amount of carbon that gets transported from the land to the ocean. But the remaining contributors mostly from coastal ecosystems, such as carbon-rich mangrove forests, and from groundwater discharge into the ocean have been notoriously difficult to measure.

A new study published in the journal Global Biogeochemical Cycles and spearheaded by Dr. Eun Young Kwon, project leader at the IBS Center for Climate Physics South Korea provides new estimates of this elusive component of the global carbon cycle. The study makes use of the existence of two stable carbon isotopes, 12C and 13C, with the latter being slightly heavier, because it has one more neutron in its nucleus. The concentration ratio between these two carbon isotopes (referred to as ?13C) provides a means to track carbon through the different components of the carbon cycle, including the atmosphere, oceans, river systems and the biosphere. Knowing the typical ?13C value of land biosphere and for coastal vegetation, one can now track how this quantity gets diluted in the oceans. “The carbon isotope values act like an invisible dye that tells us something about the source where it came from and how much got released initially” says Dr. Kwon, lead author of the study.

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better to know...?, climate-debate

False Alarm: IPCC Models Say A Warming Antarctica REDUCES Sea Levels -0.8 Of A Meter By 3000

by K. Richard, March 15, 2021 in NoTricksZone

The IPCC-endorsed anthropogenic global warming (AGW) paradigm finds a warming Antarctica results in more precipitation locked up as ice on the continent. This contributes to reducing sea levels: a -1.2 mm/year−1 mitigation of sea level rise over the next 80 years.

In the 4th IPCC report, Working Group 1 (the physical science) reported that as global temperatures rise, “GCMs [models] indicate increasingly positive SMB for the Antarctic Ice Sheet as a whole because of greater accumulation.” This means that by 2100 Antarctica “would contribute 0.4 to 2.0 mm yr−1 of sea level fall.” Over the next 980 years, Antarctica’s ice accumulation will reduce sea levels by nearly a full meter (-0.8 m by 3000).

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climate-debate

Clouds From Both Sides Now

by W. Eschenbach, March 15, 2021 in WUWT

Clouds are said to be the largest uncertainty in climate models, and I can believe that. Their representation in the models is highly parameterized, each model uses different parameters as well as different values for the same parameters, and so of course, different models give very different results. Or to quote from the IPCC, the Intergovernmental Panel on Climate Change:

In many climate models, details in the representation of clouds can substantially affect the model estimates of cloud feedback and climate sensitivity. Moreover, the spread of climate sensitivity estimates among current models arises primarily from inter-model differences in cloud feedbacks. Therefore, cloud feedbacks remain the largest source of uncertainty in climate sensitivity estimates.

The question of importance is this—if the earth heats up, will clouds exacerbate the warming or will they act to reduce the warming? The general claim from mainstream climate scientists and the IPCC is that the clouds will increase the warming, viz:

All global models continue to produce a near-zero to moderately strong positive net cloud feedback.

My own theory is that clouds and other emergent climate phenomena generally act to oppose any increases in surface temperature. So me, I’d expect the opposite of what the models show. I figured that there should be a negative cloud feedback that opposes the warming.

So I thought I’d take a look at answering the question using the CERES satellite dataset. As a prologue, here’s a short exposition about measuring the effect of clouds.

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climate-debate

Major February global temperature drop reveals the real climate control knob

by J. Bastardi, March 7, 2021 in CFACT

By now all of you know my belief ( bias) that it’s the oceans, and more so the tropical oceans, that are the biggest control knob of the weather and climate. If you really wanted to make this a controlled classroom experiment (nature is not a classroom with easy controls)  then I venture to say that the real way to know man’s influence is to have SST’s return to where they were in the 1970s, give it a couple of years for the water vapor adjustment, ( and if I am right. co2 will adjust as warmer oceans outsource it, so the outsourcing to the air will decrease) and see the difference there. And there you may be able to make an irrefutable argument for man’s contribution, Unfortunately for those who will not look at anything else,  that is likely to be quite small, but on the other hand, unlike the warming we have had which is really in the coldest driest places and more so at their coldest driest time of the year, you would likely find the lions share of what warming would be where life thrives.. As small as that has been, less than .25C of the numbers we see all the time that tell us that at. a bit over 59 degrees the planet is overheating, it is liable to be even less detectable and certainly as or more adaptable than what we seemed to have adapted to nicely here.

But the fear of course is runaway warming which is interesting since it counters Le Chateliers,  which I never hear anyone bring up, most likely because it’s a simple explanation. And a simple explanation would impact a lot of things relying on a done deal, complex explanation that the public must accept because they could never understand.

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climate-debate

Danish Institute Data: Greenland Ice Melt Has Slowed Down Significantly Over Past Decade

by P. Gosselin, March 10, 2021 in NoTricksZone

The media and activists, among them a number of “Climate scientists”, have been declaring that Greenland ice melt has been accelerating.

Today the German Klimaschau climate news video reports, however, that this has not been the case over the recent years. All the recent talk about accelerating Greenland ice loss over the past years is false.

SMB on the rise

First a plot of Greenland’s surface mass balance SMB (blue curve below) shows that snow accumulation has occurred faster than snow and ice have melted over the past 35 years:

Chart: cropped from Klimaschau here. 

Though the annual SMB values declined from 1985 to 2012, the trend has rebounded since.

Loss through coastal discharge steady over the past 15 years

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better to know...?, climate-debate

Shock News–China 5-Year Plan Will Increase Emissions

by P. Homewood, March 6, 2021 in NotaLotofPeopleKnowThat

China has set out an economic blueprint for the next five years that could lead to a strong rise in greenhouse gas emissions if further action is not taken to meet the country’s long-term goals.

The 14th five-year plan, published in Beijing on Friday, gave few details on how the world’s biggest emitter would meet its target of reaching net zero emissions by 2060, set out by President Xi Jinping last year, and of ensuring that carbon dioxide output peaks before 2030.

China will reduce its “emissions intensity” – the amount of CO2 produced per unit of GDP – by 18% over the period 2021 to 2025, but this target is in line with previous trends, and could lead to emissions continuing to increase by 1% a year or more. Non-fossil fuel energy is targeted to make up 20% of China’s energy mix, leaving plenty of room for further expansion of the country’s coal industry.

Swithin Lui, of the Climate Action Tracker and NewClimate Institute, said: “[This is] underwhelming and shows little sign of a concerted switch away from a future coal lock-in. There is little sign of the change needed [to meet net zero].”

Zhang Shuwei, chief economist at Draworld Environment Research Centre, said: “As the first five-year plan after China committed to reach carbon neutrality by 2060, the 14th five-year plan was expected to demonstrate strong climate ambition. However, the draft plan presented does not seem to meet the expectations. The international community expected China’s climate policy to ‘jump’, but in reality it is still crawling.”

Unusually, this five-year plan did not set out GDP targets for the whole five-year period, but allowed for annual targets, with the first for this year a target of 6% growth. The Centre for Research on Energy and Clean Air said that coupled with the emissions intensity target, this could allow the growth rate of China’s emissions to speed up even further, rather than slow down, as is needed.

https://www.theguardian.com/world/2021/mar/05/china-five-year-plan-emissions

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better to know...?, climate-debate

From the non-sense of carbon neutrality

by Jeanne Marcq, March 5, 2021 in ScienceClimatEnergie

Carbon neutrality aiming to limit the rise in global temperature is a lure from the economic points of view and humanity. It is also the weakness of environmentalists, vegans and the “green” provided people of the northern hemisphere advocating worldly decay.

However, the food and energy resources exist in sufficiency  on earth but are poorly dispatched (see FAO data). Developing countries cannot be selfishly prevented from using fossil fuels to build their own economies instead of being plundered by new colonizers. No political regime has ever managed to erase socio-economic inequalities in society. With a world population currently growing until 2050 (FAO), any limitation of food production and economic development would be damaging to humanity.

 

Continuer la lecture de From the non-sense of carbon neutrality →

climate-debate

Study: Medieval Climate Change Existed in Africa

by A. Watts, Feb 24, 2018 in WUWT

Mapping Medieval Climate Change in Africa:

Continental warming, coastal cooling and shifting rainbelts 1000 years ago

Global climate is currently undergoing major change. Experts agree that this change is driven by a combination of man-made and natural factors. However, full quantification of the anthropogenic and natural components is still a matter of debate. In order to better understand the contribution of natural climate variability and distinguish this from man-made influence, researchers worldwide have gone out to the field to study Earth’s pre-industrial climate history. Of particular interest are the past thousand years, which in Europe and North America have seen the transition from a rather warm medieval period to major cooling of the Little Ice Age, followed by the temperature rebound of the Current Warm Period which was further intensified by human greenhouse gas emissions. Our understanding of medieval climate outside this well-studied North Atlantic region is unfortunately still poor.

An international team led by geoscientist Sebastian Lüning wants to change this. Lüning is a professional resources geologist who in his sparetime works on paleoclimatological studies with the Switzerland-based Institute for Hydrography, Geoecology and Climate Sciences. Together with colleagues from Poland, Nigeria, Turkey and Germany they embarked on a journey through the scientific literature to shed light on the so-called ‘Medieval Climate Anomaly’, a period comprising of the years 1000-1200 AD. The initial focus region of their study was Africa. Lüning and his team crawled through hundreds of publications and mosaiced together a fascinating picture of African medieval climate change that tracks ancient heat waves, local cooling, drought and phases of amplified rainfall. Using modern database and visualization technology, the team managed to synthesize astonishing trends from the large amount of filtered data. Lüning explains the challenge:

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climate-debate

No Mention Of CO2: New Study Shows African Climate Variability Strongly Linked To Natural Cycles

by C. Rotter, March 5, 2021 in WUWT

Africa climate variability linked to natural oceanic and solar cycles, a new study affirms. No mention of CO2. 

Understanding natural cycles the key to model projections

Sufficient rainfall is the basic condition for high-yield agriculture and food security for the population. Until recently, however, it was not possible to reliably predict rainfall several months in advance, which repeatedly led to unexpected crop failures. For some years now, however, progress has been emerging. The literature has repeatedly reported exciting correlations between temperature and air pressure patterns on the world’s oceans with rainfall and droughts in Africa and on other continents.

A group of researchers led by Horst-Joachim Lüdecke wanted to know more and meticulously searched for patterns in the monthly rainfall data of 49 African countries for the period 1901 to 2017 using statistical methods.

“Large number of robust correlations”

The scientists compared the rainfall fluctuations with five oceanic indices of natural origin that are firmly established in science, as well as with solar activity. The evaluation revealed a large number of robust correlations across the African continent with characteristic seasonal patterns. It has been known for some time that the Atlantic Ocean influences precipitation in Morocco and the Sahel via the so-called Atlantic Multidecadal Oscillation (AMO) and North Atlantic Oscillation (NAO). In East Africa, influences from the Indian and Pacific Oceans have been reported so far.

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climate-debate

STATE OF THE POLAR BEAR REPORT 2020

by S. J. Crocfkord, Report 2020 in GWPF

 

.pdf (58 pages)

Report 40, The Global Warming Policy Foundation

Preface v Executive summary vi

ISBN 978-1-9160700-7-3
© Copyright 2020, The Global Warming Policy Foundation

  1. Introduction 1
  2. Conservation status 1
  3. Population size 2
  4. Population trends 10
  5. Habitat status 11
  6. Prey base 15
  7. Health and survival 17
  8. Evidence of flexibility 22
  9. Human/bear interactions 23
  10. Discussion 28

Bibliography 30 About the Global Warming Policy Foundation

better to know...?, climate-debate

…Temperature Records…

by Donn Dears, March 2, 2021

There has been an unending stream of media reports about how the last few years have been the warmest on record.

They gloss over that they are only referring to the last 150 years, because temperatures have been higher than today on several occasions over the past 10,000 years, a period between glaciations know as the Holocene.

Recently, a presentation by Tony Heller caught my attention, in which he had facts, coupled with evidence, that shed light on the media’s hypocrisy. 

What follows uses some of the materials from Mr. Heller’s presentation, coupled with additional information. (Relevant links are itemized below.)

The first chart is Figure 3, from Dr. Roy Spencer’s evaluation of the heat island effect.

It shows that the urban heat island effect has skewed reported temperatures higher than where population density is low. Areas with low population density are representative of the vast majority of land surface areas.

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Today’s temperatures are not the highest, or second highest, on record: Not for the past one-hundred-fifty years, or for the past 10,0000 years.

Links

Heller: https://bit.ly/2LrkLXf

Spencer:http://bit.ly/2N4fmpf

Real Climate Science:https://bit.ly/3cVlDhU

climate-debate

The risks of communicating extreme climate forecasts

by COLLEGE OF ENGINEERING, CARNEGIE MELLON UNIVERSITY, Feb 24, 2021 in EurekaAlert!/AAAS

For decades, climate change researchers and activists have used dramatic forecasts to attempt to influence public perception of the problem and as a call to action on climate change. These forecasts have frequently been for events that might be called “apocalyptic,” because they predict cataclysmic events resulting from climate change.

In a new paper published in the International Journal of Global Warming, Carnegie Mellon University’s David Rode and Paul Fischbeck argue that making such forecasts can be counterproductive. “Truly apocalyptic forecasts can only ever be observed in their failure–that is the world did not end as predicted,” says Rode, adjunct research faculty with the Carnegie Mellon Electricity Industry Center, “and observing a string of repeated apocalyptic forecast failures can undermine the public’s trust in the underlying science.”

Rode and Fischbeck, professor of Social & Decision Sciences and Engineering & Public Policy, collected 79 predictions of climate-caused apocalypse going back to the first Earth Day in 1970. With the passage of time, many of these forecasts have since expired; the dates have come and gone uneventfully. In fact, 48 (61%) of the predictions have already expired as of the end of 2020.

Fischbeck noted, “from a forecasting perspective, the ‘problem’ is not only that all of the expired forecasts were wrong, but also that so many of them never admitted to any uncertainty about the date. About 43% of the forecasts in our dataset made no mention of uncertainty.”

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better to know...?, climate-debate

Not a myth: State of the Polar Bear Report shows 2020 was another good year for polar bears

by C. Rotter Feb 27, 2021 in WUWT

The ‘State of the Polar Bear Report 2020’ is now available. Forget hand-wringing about what might happen fifty years from now – celebrate the fabulous news that polar bears had yet another good year.

Press release from the Global Warming Policy Forum

 

Cite as:

Crockford, S.J. 2021. The State of the Polar Bear Report 2020. Global Warming Policy Foundation Report 48, London.

London, 27 February: A prominent Canadian zoologist says that Facebook’s information is gravely out of date and 2020 was another good year for polar bears.

In the State of the Polar Bear Report 2020, published by the Global Warming Policy Foundation (GWPF) on International Polar Bear Day, zoologist Dr. Susan Crockford explains that while the climate change narrative insists that polar bear populations are declining due to reduced sea ice, the scientific literature doesn’t support such a conclusion.

Crockford clarifies that the IUCN’s 2015 Red List assessment for polar bears, which Facebook uses as an authority for ‘fact checking’, is seriously out of date. New and compelling evidence shows bears that in regions with profound summer ice loss are doing well.

Included in that evidence are survey results for 8 of the 19 polar bear subpopulations, only two of which showed insignificant declines after very modest ice loss. The rest were either stable or increasing, and some despite major reductions in sea ice. As a result, the global population size is now almost 30,000 – up from about 26,000 in 2015.

Dr. Crockford points out that in 2020, even though summer sea ice declined to the second lowest levels since 1979, there were no reports of widespread starvation of bears, acts of cannibalism, or drowning deaths that might suggest bears were having trouble surviving the ice-free season.

climate-debate

Yet Another Model-Based Claim Of Anthropogenic Climate Forcing Collapses

by K. Richard, Feb 25 2021 in NoTricksZone

High-resolution climate models have projected a “decline of the Atlantic Meridional Overturning Circulation (AMOC) under the influence of anthropogenic warming” for decades (Lobelle et al., 2020). New research that assesses changes in the deeper layers of the ocean (instead of “ignoring” these layers like past models have) shows instead that the AMOC hasn’t declined for over 30 years.

The North Atlantic has been rapidly cooling in recent decades (Bryden et al., 2020, Fröb et al., 2019). A cooling of “more than 2°C” in just 8 years (2008-2016) and a cooling rate of -0.78°C per decade between 2004 and 2017 has been reported for nearly the entire ocean region just south of Iceland. The cooling persists year-round and extends from the “surface down to 800 m depth”

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climate-debate, energy and fields

Mexico was once a climate leader – now it’s betting big on coal

by D. Agren, Feb 15 2021 in TheGuardian

As the climate crisis worsens, Andrés Manuel López Obrador plans to buy nearly 2m tons of thermal coal from small producers

The men on the midnight shift smoked cigarettes and cracked jokes in the glow of their helmet lights as they prepared to go underground. They were loading safety equipment and coils of pipe on to wheelbarrows, in readiness for a second shift due to start working later that week.

“We’re reactivating the industry,” said Arturo Rivera Wong, who had just taken on 40 more workers at the mine he owns in the scrublands of the border state of Coahuila.

 

“Four furnaces at the big thermoelectric plant are going to be reactivated,” he explained. “This is going to kickstart coal sales.”

As the climate crisis worsens and clean energy prices plunge, governments around the world have been weaning their economies of coal and other fossil fuels.

Mexico is moving in the opposite direction.

President Andrés Manuel López Obrador, popularly known as Amlo, has unveiled plans to buy nearly 2m tons of thermal coal from small producers like Rivera. He also plans to reactivate a pair of coal-fired plants on the Texas border, which were being wound down as natural gas and renewables took a more prominent role in Mexico’s energy mix.

Not only is López Obradorbetting big on fossil fuels, he is also curtailing clean energy.

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better to know...?, climate-debate

UN Security Council hears of climate threat, does nothing

by K. Mathiesen, Feb 23 2021 in Politico

When it comes to climate change, bombs don’t work, so the United Nations Security Council prefers words to action.

Tuesday saw the highest profile discussion of climate change in the U.N.’s central body for promoting global peace. But Russia, which holds a veto as a permanent member of the Council, warned against any move to recognize warming as a threat to global security.

Moscow’s stance left the Security Council’s U.K. presidency stabbing at a broken panic button.

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climate-debate

Munging The Sea Level Data

by W. Eschenbach, Feb 21, 2021 in WUWT

For more than a decade now, I’ve been wondering about a couple of questions.

First, why does the satellite-based sea-level data show that the sea level is rising so much faster than the rise measured at tidal stations on the coastlines around the world? Records from tidal stations show a rise on the order of a couple of mm per year, a rate which is little changed over the century or so for which we have adequate records. But the satellite record (Figure 1) shows a rise of 3.3 mm/year. Why the large difference?

Second, why does the satellite-based sea-level show such significant acceleration? As mentioned above, the sea-level records from tidal stations, which are much longer, show little or no acceleration. But the satellite record claims that the rate of sea-level rise is increasing by about a tenth of an mm per year. That amount of acceleration would double the rate of sea-level rise in about thirty years. Again, why the large difference?

To start with, here’s what the satellite data says, according to the University of Colorado Sea Level Research Group.

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climate-debate

NOAA’s Climate Disaster Claims Are A Sham

by C. Rotter, Feb 20, 2021 in WUWT

When a hurricane hits a populated stretch of coast, which is almost invariably, it is inevitable losses will be big. But while last year was a busy year for hurricanes, we do know that the frequency of US hurricanes has not been unusual in the last decade, and if anything the long term trend is down. (Though it is worth noting that the 1980s and 90s were below average, making the choice of 1980 as a start date statistically inappropriate):

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better to know...?, climate-debate

Climate Facts or Leaps of Faith? Governments Can’t Tell the Difference

by Donna Laframboise, Feb 17, 2021 in BigPicturesNews

We have no hard evidence of a crisis. Only expert opinion and best estimates.

Governments are currently fighting climate change to the tune of billions. For this to make sense, each idea in the following chain of reasoning needs to be bulletproof:

#1 – scientists know there’s a climate crisis
#2 – scientists know it’s humanity’s fault
#3 – scientists know we can alleviate the crisis by changing our behaviour

But each of these amounts to a leap of faith. Let’s start with the conviction that something unusual is going on. This planet is more than 4 billion years old. The climate was marching to its own drummer long before humans appeared. It has changed numerous times – sometimes gradually, sometimes violently. Twenty thousand years ago, much of North America was covered by ice.

Because humans weren’t recording and analyzing those billions of years of climatic history, today’s scientists have no way of knowing if anything unusual is going on now.

They can surmise. They can speculate. They can extrapolate. But they have no smoking gun. I’ve written two books about the UN’s Intergovernmental Panel on Climate Change (IPCC). That organization says it’s “extremely likely that more than half” of the global warming between 1951 and 2010 was caused by human activity. It talks about its “best estimate.”

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better to know...?, climate-debate

Southeast Greenland Sea Surface Temperature 1° – 2°C Warmer In 1940 Than Today, New Study Shows

by P. Gosselin, Feb 14, 2021 in NoTricksZone

A team of Danish scientists led by David Wangner published a paper a year ago about the results of a Greenland sediment core from Skjoldungen Fjord, near the Thrym Glacier, which allowed sea surface temperatures to be reconstructed.

The core covers the past 200 years (1796–2013). The scientists find that the SST record compares well with other alkenone‐based reconstructions from SE‐Greenland and thus features regional shelf water variability.

Today some scientists like claiming the present is warmer than at any time in the past 1000 years and suggest the Greenland ice sheets are rapidly melting. But the results of the core reconstruction show that it was warmer in the past, some 80 years ago

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better to know...?, climate-debate

Biden’s climate ‘fix’ is fantastically expensive and perfectly useless

by B. Lomborg, Feb 9, 2021 in NewYorkPost

Across the world, politicians are going out of their way to promise fantastically expensive climate policies. President Biden has promised to spend $500 billion each year on climate — about 13 percent of the entire federal revenue. The European Union will spend 25 percent of its budget on climate.

Most rich countries now promise to go carbon-neutral by mid-century. Shockingly, only one country has made a serious, independent estimate of the cost: New Zealand found it would optimistically cost 16 percent of its GDP by then, equivalent to the entire current New Zealand budget.

The equivalent cost for the US and the EU would be more than $5 trillion. Each and every year. That is more than the entire US federal budget, or more than the EU governments spend across all budgets for education, recreation, housing, environment, economic affairs, police, courts, defense and health.

Tellingly, the European Commission Vice President Frans Timmermans recently admitted that climate policies would be so costly, it would be a “matter of survival for our industry” without huge, protective border taxes.

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