Mighty Greenland glacier slams on brakes

Tallbloke's Talkshop

Jakobshavn glacier, West Greenland [image credit: Wikipedia]
Even the climate alarm oriented BBC has finally had to admit the inconvenient truth about Greenland’s largest glacier. Instead of dropping in height by 20m. a year, it’s now thickening by 20m. a year. This isn’t supposed to happen when one of the stock phrases of the fearmongering media is ‘the rapidly melting Arctic’. Of course logic says that since glaciers can grow naturally they can also retreat naturally, despite attempts to blame humans.

European satellites have detailed the abrupt change in behaviour of one of Greenland’s most important glaciers, says BBC News.

In the 2000s, Jakobshavn Isbrae was the fastest flowing ice stream on the island, travelling at 17km a year.

As it sped to the ocean, its front end also retreated and thinned, dropping in height by as much as 20m year.

But now it’s all change. Jakobshavn is travelling…

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Climate data shows no recent warming in Antarctica, instead a slight cooling

Reblogged from Watts Up With That:

Below is a plot from a resource we have not used before on WUWT, “RIMFROST“. It depicts the average temperatures for all weather stations in Antarctica. Note that there is some recent cooling in contrast to a steady warming since about 1959.

Data and plot provided by http://rimfrost.no 

Contrast that with claims by Michael Mann, Eric Steig, and others who used statistical tricks to make Antarctica warm up. Fortunately, it wasn’t just falsified by climate skeptics, but rebutted in peer review too.

Data provided by http://rimfrost.no 

H/T to Kjell Arne Høyvik‏  on Twitter

ADDED:

No warming has occurred on the South Pole from 1978 to 2019 according to satellite data (UAH V6). The linear trend is flat!

Levin Interviews Dr. Patrick Michaels On Climate

From Musings from the Chiefio:

 

Fourteen minutes well spent that shows how wrong the “Climate Models” are, and why that matters to all of us due to the EPA “Endangerment Finding” being based 100% on those broken models.

I find it interesting that The Russians have a climate model that works. Wonder if it is open sourced? If anyone knows, or knows how to get a copy, let me know! It would save a lot of time trying to make one that works from the crap that doesn’t…

In Aftermath of Volcanic Eruption, Photosynthesis Waxes, Carbon Dioxide Wanes

From Scientific American:

By Laura Wright on March 28, 2003

 

Read more from this special report:

A Guide to Volcanoes

In June 1991, when Mt. Pinatubo in the Philippines spewed tons of volcanic ash and gases into the atmosphere, it just so happened that halfway around the world scientists were beginning to obtain good data from carbon dioxide monitors high above the tree canopy in Harvard Forest, outside Boston, Mass. Now, more than a decade later, the measurements taken during the years following the eruption are providing new insight into how atmospheric aerosols affect photosynthesis. The findings, published today in the journal Science, are forcing scientists to rethink the factors that influence the cycling of carbon through the environment, particularly carbon dioxide, a major player in global warming.

 

Within three weeks of the Mt. Pinatubo eruption, the largest volcanic blast of the century, a band of sulfur aerosol had encircled the globe. By early 1992, the volcanic gases and aerosols had diffused through the stratosphere, veiling the earth. During that time, global carbon dioxide levels fell more sharply than any other decline on record. Some scientists suggested that global cooling caused ecosystem respiration to drop, lowering the amount of carbon dioxide emitted into the atmosphere. But Lianhong Gu of Oak Ridge National Laboratory, lead author of the Science report, didn’t think that could be the only explanation.

Gu knew that crop scientists had discovered that plants grow best in diffuse light. When sunlight is too intense, some leaves fall into shadow, unable to photosynthesize, while others bask in the direct beams but will reach a photosynthetic saturation point. Moderate cloud cover and aerosols block direct beams, but allow light to bounce back and forth off water vapor and other molecules, creating a “softer” light that reaches leaves that would otherwise be shaded. As a result, the plants photosynthesize more, using up carbon dioxide in the process. Gu and his collaborators determined that the same principles apply to forest canopies. The Harvard Forest data show that carbon dioxide levels dropped for two years following the eruption at Mt. Pinatubo findings that the scientists suggest represent a worldwide phenomenon given that the eruption had a global atmospheric effect. “Up until now we hadn’t linked aerosols and clouds with carbon studies,” Gu says. “In order to understand atmospheric carbon dioxide concentrations, which affect climate, we have to look at how aerosols and clouds affect the global carbon cycle.”

Warmists Epic History Fail

Science Matters

Geologist Gregory Whitestone provides a climate history lesson for warmists who skipped history classes protesting against global warming.  Hist article at Town Hall is Ocasio-Cortez’s Climatology Lacks Historical Context. Excerpts in italics with my bolds. H/T Climate Depot.

When Sam Cooke sang “Don’t know much about history” in 1960 he could not have had U.S. Rep. Alexandria Ocasio-Cortez in mind, but only because she lives a half century later.

Whatever Ocasio-Cortez got from history classes during her time at Boston University, it wasn’t an appreciation of historical context because it is sorely lacking in her assertions about climate and its effect on humankind. She and others promoting the Green New Deal have the facts exactly backwardswhen they claim that warming temperatures are an existential threat to humanity.

Ocasio-Cortez recently warned in a House Oversight Committee hearing that the United States would have “blood on our hands” if legislation to…

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The Little Ice Age (LIA) was most likely the coldest period of the Holocene Epoch

This is a comment by David Middleton from Jim Steele’s post on Watts Up With That:

The Little Ice Age (LIA) was most likely the coldest period of the Holocene Epoch. In Central Greenland it was roughly the same temperature as it was during the Bølling-Allerød glacial interstadial.

The modern rise in atmospheric CO2 lagged behind the warm up from the LIA.

The LIA clearly appears to be related to a roughly 1,000-yr quasi-periodic fluctuation.

The 1,000-yr quasi-periodic fluctuation appears to be the dominant climate signal of the Holocene.

Davis_Fig_6Davis_Fig_7

And the modern warming is statistically indistinguishable from the Medieval Warm Period.

Yet we’re supposed to destroy our economy and become good little Marxists because Hockey Stick-head is a fracking moron.

The Little Ice Age – Back to the Future

Reblogged from Watts Up With That:

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What’s Natural

By Jim Steele

Extreme scientists and politicians warn we will suffer catastrophic climate change if the earth’s average temperature rises 2.7°F above the Little Ice Age average. They claim we are in a climate crisis because average temperature has already warmed by 1.5°F since 1850 AD. Guided by climate fear, politicians fund whacky engineering schemes to shade the earth with mirrors or aerosols to lower temperatures. But the cooler Little Ice Age endured a much more disastrous climate.

The Little Ice Age coincides with the pre-industrial period. The Little Ice Age spanned a period from 1300 AD to 1850 AD, but the exact timing varies. It was a time of great droughts, retreating tree lines, and agricultural failures leading to massive global famines and rampant epidemics. Meanwhile advancing glaciers demolished European villages and farms and extensive sea ice blocked harbors and prevented trade.

Dr. Michael Mann who preaches dire predictions wrought by global warming described the Little Ice Age as a period of widespread “famine, disease, and increased child mortality in Europe during the 17th–19th century, probably related, at least in part, to colder temperatures and altered weather conditions.” In contrast to current models suggesting global warming will cause wild weather swings, Mann concluded “the Little Ice Age may have been more significant in terms of increased variability of the climate”. Indeed, historical documents from the Little Ice Age describe wild climate swings with extremely cold winters followed by very warm summers, and cold wet years followed by cold dry years.

A series of Little Ice Age droughts lasting several decades devastated Asia between the mid 1300s and 1400s. Resulting famines caused significant societal upheaval within India, China, Sri Lanka, and Cambodia. Bad weather resulted in the Great Famine of 1315-1317 which decimated Europe causing extreme levels of crime, disease, mass death, cannibalism and infanticide. The North American tree-ring data reveal megadroughts lasting several decades during the cool 1500s. The Victorian Great Drought from 1876 to 1878 brought great suffering across much of the tropics with India devastated the most. More than 30 million people are thought to have died at this time from famine worldwide.

The Little Ice Age droughts and famines forced great societal upheaval, and the resulting climate change refugees were forced to seek better lands. But those movements also spread horrendous epidemics. Wild climate swings brought cold and dry weather to central Asia. That forced the Mongols to search for better grazing. As they invaded new territories they spread the Bubonic plague which had devastated parts of Asia earlier. In the 1300s the Mongols passed the plague to Italian merchant ships who then brought it to Europe where it quickly killed one third of Europe’s population. European explorers looking for new trade routes brought smallpox to the Americas, causing small native tribes to go extinct and decimating 25% to 50% of larger tribes. Introduced diseases rapidly reduced Mexico’s population from 30 million to 3 million.

By the 1700s a new killer began to dominate – accidental hypothermia. When indoor temperatures fall below 48°F for prolonged periods, the human body struggles to keep warm, setting off a series of reactions that causes stress and can result in heart attacks. As recently as the 1960s in Great Britain, 20,000 elderly and malnourished people who lacked central heating died from accidental hypothermia. As people with poor heating faced bouts of extreme cold in the 1700s, accidental hypothermia was rampant.

What caused the tragic climate changes of the Little Ice Age? Some scientists suggest lower solar output associated with periods of fewer sunspots. Increasing solar output then reversed the cooling and warmed the 20th century world. As solar output is now falling to the lows of the Little Ice Age, a natural experiment is now in progress testing that solar theory. However other scientists suggest it was rising CO2 that delivered the world from the Little Ice Age.

Increasing CO2 also has a beneficial fertilization effect that is greening the earth. The 20th century warming, whether natural or driven by rising CO2 concentrations, has lengthened the growing season. Famines are being eliminated. Tree-lines stopped retreating and trees are now reclaiming territory lost over the past 500 years. So why is it that now we face a climate crisis?

At the end of the 1300’s Great Famine and the Bubonic Plague epidemic, the earth sustained 350 million people. With today’s advances in technology and milder growing conditions, record high crop yields are now feeding a human population that ballooned to over 7.6 billion.

So, the notion that cooler times represent the “good old days” and we are now in a warmer climate crisis seems truly absurd.

Jim Steele is retired director of the Sierra Nevada Field Campus, SFSU

and authored Landscapes and Cycles: An Environmentalist’s Journey to Climate Skepticism

De Nada Ocean SSTs in February

Science Matters

The best context for understanding decadal temperature changes comes from the world’s sea surface temperatures (SST), for several reasons:

  • The ocean covers 71% of the globe and drives average temperatures;
  • SSTs have a constant water content, (unlike air temperatures), so give a better reading of heat content variations;
  • A major El Nino was the dominant climate feature in recent years.

HadSST is generally regarded as the best of the global SST data sets, and so the temperature story here comes from that source, the latest version being HadSST3.  More on what distinguishes HadSST3 from other SST products at the end.

The Current Context

The chart below shows SST monthly anomalies as reported in HadSST3 starting in 2015 through February 2019. For some reason, it took almost a whole month to publish the updated dataset.

A global cooling pattern is seen clearly in the Tropics since its peak in 2016, joined…

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Global Cooling: The Real Climate Threat

From the American Thinker:

Climate alarmists constantly warn us that man-made global warming is making our world less habitable and that climate doomsday is fast approaching.  But a closer look at our climate reveals a surprising climate discovery that our mainstream media have conveniently ignored for decades: the role of the sun in determining Earth’s climate.

For the first time in humanity’s history, our leaders could be actively devising policies — based on their defiant and biased obsession with global warming — that will render us highly vulnerable to even the slightest cooling in our climatic system.

“We are causing irreversible damage to our environment,” “We are headed for a climate doomsday due to excessive warming,” “Climate change may wipe out humanity” — these are our everyday news headlines.

As a climate scientist, I find these headlines, and the stories they introduce, vague and full of hasty generalizations.  The repeated, one-dimensional doomsday cry about carbon dioxide’s role in global temperature blinds the public to other causes.

CO2 is just one of many factors that influence global temperatures.  Its role in recent warming is far from dominant.  Indeed, there is poor correlation between CO2 emissions and global temperature.  Between 2000 and 2018, global temperature showed no significant increase despite a steep increase in carbon dioxide emissions from anthropogenic sources.  The same was the case between the years 1940 and 1970.  When carbon dioxide concentration increases at a constant and steady rate and temperature doesn’t follow the pattern, we can be certain that carbon dioxide is not the primary driver of global temperature.

If not CO2, what?

Life on Earth is possible because of Earth’s perfect positioning in the solar system: not too close to the sun and not too far.  For centuries, academicians have acknowledged this, and climate scientists today know that the sun is the biggest influencer and driver of global temperature.

NASA’s page on solar influence clearly states that changes in the sun largely determine Earth’s atmospheric and surface temperatures.  Astrophysicists and climatologists measure these changes in the sun in terms of quantifiable phenomena such as sunspot activity and solar cycles.

However, in recent times, NASA has succumbed to pressure from climate doomsday proponents.  NASA’s original page on the sun’s impact on our climate system is now hidden from the public domain.

With the advent of dangerous man-made global warming theory, CO2 has taken the limelight, and the sun has been relegated to a mere spectator.

This could be warming-obsessed alarmists’ biggest mistake ever.

In central Europe, for example, temperature changes since 1990 coincided more with the changes in solar activity than with atmospheric CO2 concentration.  The same has been true globally, and across centuries.

The Maunder Minimum (1645–1715) and Dalton Minimum (1790–1830) — periods of low solar activity — were responsible for the coldest periods of the Little Ice Age.  England’s River Thames froze.  Whole civilizations collapsed as people starved because cold-induced poor harvests led to malnutrition that made people too weak to resist disease.  Likewise, increased solar activity in the Roman Warm Period (~250 B.C. to A.D. 400) and Medieval Warm Period (~A.D. 950–1250) brought warmer temperatures on Earth, and thriving crops led to greater nutrition and lower mortality rates.

Hundreds of peer-reviewed scientific papers affirm the overwhelming impact of solar activity on Earth’s temperature.

But will there be a cooling?

Observations of sunspot activity at the Space Weather Prediction Center of the National Oceanic and Atmospheric Administration (NOAA) indicate that there has been a lull in solar activity during the past 18 years — the same period during which there has been no significant warming, confirming a direct correlation between solar activity and global average temperature.

Some climate scientists say another major cooling is likely soon.  Their claims are not outlandish.

Evidence for the lull in solar activity is so clear that even NASA admits the cooling trend.  Martin Mlynczak of NASA’s Langley Research Center commented, “We see a cooling trend[.] … High above Earth’s surface, near the edge of space, our atmosphere is losing heat energy.  If current trends continue, it could soon set a Space Age record for cold.”

Most recent scientific studies on solar cycles suggest that the next solar cycles (25 and 26) could be similar to the Maunder and Dalton minima that plunged much of the world into disastrous cold.

An article in the peer-reviewed scientific journal Astrophysics and Space Science last month warns that the solar minimum might already have begun.  Its authors also say there is a high possibility that it will be even colder than those of the Little Ice Age.

That is disturbing news.

Most of our current efforts — including the choice of our renewable energy technologies and our anti–fossil fuel developmental policies — are incompatible with fighting off the impacts of severe cold weather (localized and short-term), let alone long-lasting and global cooling like what happened with the solar minima of the Little Ice Age.

In the event of global cooling, people all over the world — the poor, especially — will be vulnerable.  Our vulnerability will be largely because of global warming alarmists’ neglect of climate reality and the power-hungry climate agenda currently dominating national and international politics.

Vijay Jayaraj (M.Sc., Environmental Science, University of East Anglia, England), contributor to the Cornwall Alliance for the Stewardship of Creation, lives in Chennai, India.

Climate: In Case You Were Wondering

Reblogged from Watts Up With That:

Guest opinion by David Archibald

The global warming hysteria was reaching a crescendo in the lead up to the climate confab in Copenhagen in 2009 when a civic-minded person released the Climategate emails, deflating the whole thing. Those emails demonstrated that the science behind global warming was more like science fiction, concocted from the fevered imaginations of the scientists involved.

Nigh on 10 years have passed since then and we are currently experiencing another peak in the hysteria that seems to be coordinated worldwide. But why? Why now? The global warming scientists have plenty of time on their hands and plenty of money. Idle curiosity would have got some to have a stab at figuring out what is going to happen to climate. Do they see an imminent cooling and they have to get legislation in place before that is apparent?

The passage of those ten years has given us another lot of data points on the global warming. There are now 40 years of satellite measurements of atmospheric temperature and this is how that plots up for the Lower 48 States:

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What the graph shows is the departure from the average for the 30 years from 1981 to 2010. The last data point is February 2019 with a result of -0.03 degrees C. So we have had 40 years of global warming and the temperature has remained flat. In fact it is slightly cooler than the long term average. Is it possible to believe in global warming when the atmosphere has cooled? No, not rationally. Is it possible for global warming to be real if the atmosphere has cooled? Again no.

Now let’s look at carbon dioxide which is supposed to be driving the global warming, if it was happening. A lab high up on Mauna Loa in Hawaii has been measuring the atmospheric concentration since 1958. As it is the annual change in concentration that is supposed to be driving global warming let’s see how that plots up:

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What it shows is that the driving effect has been in a wide band from 1979 when the satellites to measure temperature went up but the trend is flat. Think about that – 40 years of forcing and no result in the actual atmospheric temperature. If it was ever going to happen it would have happened by now.

The opposite of global warming is global cooling. What are the chances of that? Pretty good in fact. Only one graph is need to show the potential for that – the aa Index which is a measure of the Sun’s magnetic field strength. Records of that have been kept since 1868:

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The second half of the 20th century had a solar magnetic field strength that was 50% higher than that of the last 60 years of the Little Ice Age. That ended in 2006. We are now back to the solar activity levels of the 19th century and that may bring the sort of climate our forbears had then.

And so it has come to pass. January-February had record cold over North America. Seemingly the polar vortex was everywhere because Japan also had record cold.

Waiting for global warming to happen is like Waiting for Godot. It is never going to happen and the wait is getting beyond tedious.

In the meantime there is no evidence for global warming and the opposite is happening, as shown by the record cold we have just experienced. It is time to stop giving global warmers the benefit of doubt – they are loons. That includes Rick Perry.


David Archibald has lectured on climate science in both Senate and House hearing rooms.