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Mass Extinction Traced to Ozone Depletion: Fossil Pollen "Sunscreen" Evidence Emerges
SciTechDaily ^ | January 29, 2023 | Chinese Academy of Sciences

Posted on 05/19/2025 7:51:06 PM PDT by SunkenCiv

Fossil pollen from the end-Permian extinction reveals increased UV-B protection compounds, linking volcanic activity, ozone loss, and ecosystem collapse during Earth's most severe mass extinction.

Scientists from China, Germany, and the UK led by Prof. LIU Feng from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences (NIGPAS) have revealed that pollen preserved in 250-million-year-old rocks contains abundant compounds that function like sunscreen but are produced by plants to protect themselves from harmful ultraviolet (UV-B) radiation.

The presence of these compounds suggests that a pulse of UV-B played an essential role in the end-Permian mass extinction event...

Accompanying this global warming event was a collapse of the Earth's ozone layer. Support for this theory comes from the abundant occurrence of malformed spores and pollen grains that testify to an influx of mutagenic UV irradiation.

(Excerpt) Read more at scitechdaily.com ...


TOPICS: Astronomy; Science
KEYWORDS: catastrophism; ozone
Credit: Conor Haynes-Mannering, University of Nottingham
Credit: Conor Haynes-Mannering, University of Nottingham

1 posted on 05/19/2025 7:51:06 PM PDT by SunkenCiv
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To: 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AnalogReigns; AndrewC; aragorn; ...
Nah. Impacts.



2 posted on 05/19/2025 7:52:14 PM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: SunkenCiv

Siberian Traps.


3 posted on 05/19/2025 7:54:43 PM PDT by Flag_This (They're lying.)
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To: SunkenCiv

That looks like it might make a good ride at Disney World.

Afrin could sponsor it.

They could call it THE DARK HORRORS OF POLLEN.

The animals could jump out at you.

At the end Ellen Degeneres could tell you to stick things up your nose.


4 posted on 05/19/2025 8:01:33 PM PDT by blueunicorn6 ("A crack shot and a good dancer” )
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To: SunkenCiv

Musta been some really powerful deodorants, back then.


5 posted on 05/19/2025 8:14:57 PM PDT by gundog (The ends justify the mean tweets. )
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To: SunkenCiv

Let’s see........ President Trump has a secret time machine. He sent thousands of SUVs back in time to destroy the ozone.

Fast forward to today.

President Trump is making it easier for evil capitalists to produce and drive the SUVs.

There is no evidence, but it is the seriousness of the charges that counts. President Trump will be called before Congress to PROVE he does not have a time machine.


6 posted on 05/19/2025 8:15:06 PM PDT by Ronaldus Magnus III (Do, or do not, there is no try)
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To: SunkenCiv

7 posted on 05/19/2025 8:34:51 PM PDT by fireman15
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To: SunkenCiv

Those wooly mammoths used so much dang AquaNet, the hydrochloroflourocarbons released destroyed the ozone layer! Took forever for the Earth to recover!


8 posted on 05/19/2025 9:24:14 PM PDT by BradyLS (DO NOT FEED THE BEARS!)
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To: SunkenCiv

So the ozone layer vanished at least once long before man was around so many couldn’t have caused it.


9 posted on 05/20/2025 4:30:14 AM PDT by maddog55 (The only thing systemic in America is the left's hatred of it!)
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To: SunkenCiv

Volcanoes can’t be stopped any more than giant meteors...


10 posted on 05/20/2025 5:10:56 AM PDT by trebb (So many fools - so little time...)
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To: SunkenCiv

I thought it was SUVs and wooden stoves.


11 posted on 05/20/2025 5:12:22 AM PDT by dfwgator (Endut! Hoch Hech!)
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To: Flag_This

Nah.


12 posted on 05/20/2025 8:08:37 AM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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