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Greenland by Johannes Plenio on Unsplash
By Jo Nova
We may be living through some of the best weather in the last 100,000 years
Kenneth Richard at NoTricksZone reports on a new paper showing the incredible extreme climate shifts of Greenland. During the depths of the last ice age Greenland temperatures would swing abruptly by 10 to 15 degrees Celsius (or 30F) in the space of 30 years. And we’re panicking at the moment about warming at 0.13°C per decade.
These Dansgaard–Oeschger (D–O) events occurred 24 times from 120,000 years ago until 11,000 years ago. There were no humans living there at the time, as far as we know. The best estimate is that people first arrived in Greenland 4,500 years ago. As far as we know, it’s only Greenland that was gyrating wildly in temperature but the bare truth about climate scientists is the expert models can’t predict or explain any of this. So the seismic shifts came and went and went and came, and it had nothing to do with whether you turned the airconditioner on.
If any poor sodding homo sapiens did manage to wash up on Greenland during the peaks 30 or 40,000 […]
Spock (Leonard Nimoy) was warning people about the next ice age coming in 1978:
The world has cooled for the last 3,000 years. The glaciers have expanded. Temperatures have fallen dramatically in the last 30 years. If we are not prepared for the coming ice age, we’ll see hunger and death on an unprecedented scale….
In the documentary below there is footage of the “perilous state of Buffalo” in 1976/77 when it was hit with savage cold and snow (from about 13 minutes in). Today (in 2022) news is coming in from Buffalo, NY which has just had 5 feet of snow fall.
Vimeo
Every 30 years the herd may panic in a different direction…
News cycles follow the natural ones (and the money). So at the depths of the cooling from WWII to the 1970s there were ice-age stories. Then came the warming stories, and the IPCC extrapolates a thirty year trend to infinity…
Graph by Syan Akasofu
hat tip to Climate Depot
9.8 out of 10 based on 88 ratings […]
At some point, the ice sheets want their land back
We’re balanced at the end of a ten-thousand-year warm spike, in an ocean of ice-ages, reshaping our economy to try to stop a half a degree of warming.
Those glaciers are coming… | Photo by Diego Delso
The last million years have been whipsawing climate action. While modern Homo sapiens sees two degrees of warming as an apocalypse, for most of the last million years it would have been God’s gift to Pleistocene man.
….
Ken Stewart compared the current interglacial with the last three, and found our favourite – the Holocene — has already run longer than all of last three did.*
Global Warming or Global Cooling: Keep an Eye on Greenland
Ken Stewart
There are several ways of identifying the start and end of interglacials. I have chosen points when Antarctic temperatures first rise above zero and permanently fall below zero relative to 1999. Graph 3 shows the length of time between these points for the previous three interglacials compared with the Holocene.
The Holocene has lasted longer than the previous three interglacials: and is colder.
The point […]
We panic about the next half degree of warming (above the 1.5 we’ve already had) but the depth of the ice age was savagely cold. For years the experts told us what Earth’s temperature was then, but apparently they were wrong.
And yet corals and rainforest survived. Plus turtles, whales, kittens — lots of things. And all without research grants.
…
Nice line on the Nobel gas calibration with ground temperatures. Nice proxy.
Two studies have come out in the last 10 months both showing that at its coldest point about 25,000 years ago, the Earth was on average six degrees cooler Celcius than it is today. And this new study includes estimates of temperatures of tropical land near the oceans which ought to be more stable and less prone to big extremes.
This comes from a newer style of proxy based on noble gases dissolved in ground water. It appears to be quite an accurate proxy, judging by the graph to the right. And it solves a lot of problems with other proxies. We can take samples from all around the world instead of just the polar ice caps (like we can with ice cores). […]
The next ice coming to Europe might look something like the last ice age shown in this simulation. A time when Venice will be top of a long paddock that stretches to Albania.
In school children are taught to hyperventilate about the last 30m retreat of glaciers that never stayed put ever.
Instead, they could be studying this… (click to start)
At the 24,000 year BC point glaciers have wiped out Zurich, Bern, Geneva.
Image the effect on people if this were shown everytime a Swiss Alps disaster story was run?
OK, so it is a model
Advance and retreat of the Alpine glaciers during the last glacial cycle from Julien Seguinot on Vimeo.
About 25000 years ago, Alpine Glaciers filled most of the valleys and even extended onto the plains. Using a computer model that contains knowledge on glacier physics based on modern observations of Greenland and Antarctica and laboratory experiments on ice, help from traces left by glaciers on the landscape, and one of the fastest computers in the world, this animation is an attempt to reconstruct of the evolution of Alpine Glaciers in time from 120000 years ago to today.
Meanwhile, WWF […]
Fossils show those dang mammals lived in all the spots they weren’t supposed to live in. Climate models don’t predict the climate, and animal distribution models don’t predict (or in this case hindcast) animal distribution either. How little we know, and how adaptable is biology?
This calls into question all the headline prophecies about the extinction of cute furry critters due to climate change.
The modelers were sure that animals would be unable to cope with temperature changes and would not have lived in the same places as they do now during a climate so different. By crikey, it was an ice age! Yet those small mammals, whose defining biology is that regulate their own temperature, flummoxed the models by living nearer the glacier sheets where the models predicted they would not live.
All the alarming forecasts of local extinctions of mammals come from assumptions built into modern models that fail in multiple ways. The temperature changes from the last 20,000 years show that these mammals have already survived massive shifts, both colder and warmer, and that anything we face in the next century is but a flea on a hippo.
In the graph, the dots are the fossils, the […]
Antarctic Glacier Image: Paomic
It comes as not even a tiny surprize that when someone asks “Where does all the CO2 go in an ice age?” that the answer is “The Ocean“.
We already know temperatures rise 800 years before CO2 levels (Caillon 2003), and we know the oceans contain 50 times as much CO2 as the sky. Moreover, basic chemistry tells us that CO2 (like all gases) will dissolve better in cold water, and be released as the water warms. To cap it all off, the deep abyss of the oceans turns over once every millenia or so (which fits loosely with the “lag” between temperature and CO2 levels).
But you would think this new research was solving a deep mystery, rather than confirming what most sane knowledgeable people would expect. Nonetheless, this may be the first detailed study of C13 levels going back 24,000 years.
CO2 was hidden in the ocean during the Ice Age
EurekaAlert
Why did the atmosphere contain so little carbon dioxide (CO2) during the last Ice Age 20,000 years ago? Why did it rise when the Earth’s climate became warmer? Processes in the ocean are responsible for this, says […]
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JoNova A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).
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