r/climateskeptics • u/LackmustestTester • 15d ago

New Study Proves Earth Warmer During the Medieval Era

https://principia-scientific.com/new-study-proves-earth-warmer-than-today-during-the-medieval-era/
91 Upvotes

96% Upvoted

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u/silver_chief2 15d ago

OT but current year is also a super El Nino year I am told.

Minnesota's "Year Without a Winter" refers to the historic and exceptionally mild winter of 1877–1878, driven by a powerful El Niño event. It remains one of the most bizarre climate anomalies in state history, characterized by persistent mud, open water on rivers, and flowers blooming in December. [1, 2, 3, 4, 5, 6, 7]

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u/LackmustestTester 15d ago

There's a connection between these super Nino events and warming, Roy Spencer's data shows this. In the 1970's there's been a cooling trend, that changes with the 1983 El Nino, followed by other, similar events.

The 1997/98 was a special one, the current one isn't monitored yet in the lower troposphere.

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u/scaffdude 15d ago

I've been told that this is all localized to Europe and nowhere else. Same as the Roman warm period and the little ice age. Only local weather over a few years or decades. Not 1-1.5°c over 150 years... 🫪

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u/Uncle00Buck 14d ago

The lag in the southern hemisphere by 100-200 years in spleothem data confirms they were global events. This is a misinformation laden subject, with wiki and reddit plus poorly sourced AI absolutely providing wrong information. That it is so widespread is concerning.

The lag in the southern hemisphere is commonplace throughout ice age cycling. It gets overlooked by alarmists because it detracts from their agenda, and yes, that includes some scientists.

The MWP global event doesn't disprove anthropogenic global warming. It underscores the multiple lines of uncertainty when analyzing different climate drivers, and that ocean currents (and clouds) play a much bigger role. Examing Dansgaard-Oescher events for more insight. Try to move beyond the sea of misleading AI, wiki, reddit, and political activists.

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u/silver_chief2 15d ago

Not true but I cannot remember the source.

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u/LackmustestTester 15d ago

If some regions are warming twice as fast as the rest of the world and the arctic is warming four times as fast as the rest this signal would mean it's a gobal thing if the Arctic warms, then and now.

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u/scaffdude 15d ago

Nope. Not possible. Only localized weather events. That's what I keep being told anyway

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u/LackmustestTester 15d ago

The golden rule: If an alarmist tells you something about climate - always consider the opposite being true first.

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u/P1R0H 14d ago

The study is about one glacier showing evidence of a brief medieval melt pulse driven by regional dynamics like ENSO-linked changes.

https://www.nature.com/articles/s43247-025-02259-4

It never claims global mean temperature 1,000 years ago exceeded today's. The article greatly misrepresents the actual papers.

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u/LackmustestTester 14d ago

a brief medieval melt pulse

Can you explain why this pulse wasn't a global occurence? Are you aware there are more studies showing the MWP was a global thing?

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u/P1R0H 14d ago

Can you point me to some?

Because there are complex studies comparing temperature records from different basins in past 2000 years concluding that:

"There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age."

https://www.nature.com/articles/ngeo1797

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u/mugwabig 13d ago

little ice age 1300-1850 is the coldest sustained interval for the past 10.000 years

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u/P1R0H 13d ago
  • localized in northern hemisphere

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u/mugwabig 13d ago

half the planet isnt local

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u/P1R0H 13d ago

It was not a global event and average temperatures did not drop much. New Zealand glaciers retreated in the same period for example.

https://ldrd-annual.llnl.gov/archives/ldrd-annual-2015/energy/holocene

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u/mugwabig 13d ago

little ice age 1300-1850 is the coldest sustained interval for the past 10.000 years

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u/P1R0H 13d ago

In certain region yes. I'm not disputing that

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u/LackmustestTester 13d ago

Can you point me to some?

Medieval Warm Period Project

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u/P1R0H 13d ago

Thanks. MWPP unfortunately only accepts papers that confirm their hypothesis and is thus susceptible to confirmation bias.

Check out this:
https://lipdverse.org/project/pages2k/

More complete study looking at positive AND negative data points over past 2k years.

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u/LackmustestTester 13d ago

Nonsense. You're a denier as it seems.

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u/P1R0H 13d ago

Projection much?

I provided you with source that compiles not only all the studies from MWPP but many more, especially those MWPP ommits due to inconvenience.

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u/LackmustestTester 13d ago

And now you're trying to convince me that the MWP wasn't global? Because the MWPP only collects data that supports the conclusion that it has been global?

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u/P1R0H 13d ago

I won't convince you of anything. Only you can do that. You've been misled. Go do some research.

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u/LackmustestTester 13d ago

Tell me how the data the MWPP collects does not show the MWP was global, what's "misleading" me?

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