Earth and climate – an ongoing controversy
Evidence that what is today called ‘climate change’ can naturally occur, and has occurred, over a relatively short timescale – described here as ‘remarkable’. Maybe history is trying to tell us future climate conditions are more unpredictable than advocates of IPCC doctrines would have us believe.
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An El Niño event has officially begun, says Science Daily.
The climate phenomenon, which originates in the tropical Pacific and occurs in intervals of a few years will shape weather across the planet for the next year or more and give rise to various climatic extremes.
El Niño-like conditions can also occur on longer time scales of decades or centuries. This has been shown to have occurred in the recent past by an international research team led by Ana Prohaska of the University of Copenhagen and Dirk Sachse of the German Research Centre for Geosciences (GFZ).
Their analysis of biomarkers — organic molecules or molecular fossils from vascular plants — in the sediments of a lake in the Philippines indicates an unusually dry phase in the region during the Little Ice Age between 1600 and 1900 A.D.
The results have now been published in the journal Communications Earth and Environment. They show how important the understanding of past dynamics of the tropical Pacific ocean-atmosphere climate is for the improvement of climate models and the prediction of future climate changes.
. . .
El Niño-like phenomena on longer time scales
While El Niño is an interannual climate phenomenon, the climate system of the tropical Pacific can also exhibit El Niño-like behaviour on longer time scales of decades and centuries, which is linked to the east-west gradient of sea surface temperatures in the Pacific.
Such behaviour has been shown to have transpired in the recent past by a team led by Ana Prohaska, assistant professor at the University of Copenhagen and formerly a visiting scientist at the GFZ, and Dirk Sachse, working group leader in GFZ Section 4.6 “Geomorphology” and director of Topic 5 “Landscapes of the Future” of the Helmholtz research programme “Changing Earth — Sustaining our Future,” in the journal Communications Earth and Environment.
They describe such a pronounced shift to El Niño-like conditions in the second half of the Little Ice Age, lasting from about 1630 to 1900 A.D.
What is particularly remarkable is the short period of only one generation within which conditions changed for a period of more than 200 years.
Full article here.
Tallbloke's Talkshop 
Final paragraph of the article:
Dirk Sachse from the GFZ adds: “Although there is increasing evidence that sudden climatic changes have occurred in the past, current climate models cannot reproduce such abrupt shifts in the mean state in the tropical Pacific. This highlights that the understanding of the underlying mechanisms is still limited. In the context of anthropogenic climate change, a better understanding of the drivers and consequences of the complex dynamics of the mean state of the tropical Pacific is of great importance. For this, the integration of palaeoclimatological data into modern climate models plays a crucial role.” [bold added]
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Doesn’t sound much like ‘settled science’ 🤔
My first thought on reading the article was that they had been playing computer games again and as oldbrew’s post above shows – they have.
There is no way playing computer games is going to give enlightenment of the past or the future – all they do is bolster pre-conceived ideas and stroke the egos of some so called scientists. Why don’t they admit the truth that they don’t know bit think this is one possible idea that might fit the slim available facts.
Reblogged this on Climate Collections.
Oldbrew, it’s funny how they have to pay obeisance to the Climate Change Church, even when their research shows its wrong. They show that there was a LIA with significant effects up to 1900, which destroys the claims of warming from then as being “not natural”. And they say their research shows models are useless, but stiil they have to bow and pray.
Phoenix44 says: July 5, 2023
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We can well imagine that upsetting climate funding controllers is a no-no for paid researchers.
Reblogged this on Utopia, you are standing in it!.
Only 6,000 years ago the world was warmer and the Sahara was lush, green and wet
By Joanne Nova |July 3rd, 2023
We’re told that global warming will turn our whole world into the Saharan desert, only to find out that in a warmer world even the Sahara didn’t turn into the Saharan Desert.
. . .
The period is quietly known in academic circles as the African Humid Period (AHP).
So yet again we find that the climate on Earth has always changed, that lakes, forests, and rainfall came and went without any input from coal fired plants or SUV’s and that solar panels probably would not have saved the once great green Sahara from turning into a hyperarid desert. We claim to have expert climate models, but we don’t really know why these big shifts happen, or how fast they occurred or what caused them — they are vaguely “linked” to the changes in sunshine that happen due to our orbit.
But if we are still debating whether it ended quickly or gradually, then obviously we haven’t got a good grip on the driving forces.
https://www.cfact.org/2023/07/03/only-6000-years-ago-the-world-was-warmer-and-the-sahara-was-lush-green-and-wet/
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African humid period
In general, the simulation of the Green Sahara is considered a problem for earth system models.
https://en.wikipedia.org/wiki/African_humid_period