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The Great Siberian Thaw

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Re: The Great Siberian Thaw

#5
> In 1998, Zimov brought the first horses to what he called Pleistocene Park, a fenced tract of land an hour’s boat ride from the research station. Since then, the park has grown to eight square miles, and it is now home to a hundred and fifty animals, not just horses but bison, sheep, yaks, and camels. To give them a head start, Nikita sped about the territory in the family’s “tank”—a hefty, all-terrain transport vehicle on treads—knocking down trees and under­growth.

For more on the human angle, see this piece, which includes a fascinating video:

https://www.theatlantic.com/magazine/archive/2017/04/pleisto...

Re: The Great Siberian Thaw

#6
I'm kind of surprised there isn't more interest in this article.

Any big change like this would seem to me to hint at some large effects later on. In Russia alone, the changes have the potential to be huge.

I guess it is still kind of "New Year" and people are hunkered down with COVID all over the world.

Re: The Great Siberian Thaw

#9
"and twice as much carbon as Earth’s atmosphere. "

"As levels of carbon dioxide rose from 550ppm to 945ppm to 1400ppm, subjects’ scores under most headings declined substantially. (Problem-solving ability also seemed to suffer as levels of volatile organic compounds rose.)"

"2,000-5,000 ppm: level associated with headaches, sleepiness, and stagnant, stale, stuffy air; poor concentration, loss of attention, increased heart rate and slight nausea may also be present. > 5,000 ppm: This indicates unusual air conditions where high levels of other gases also could be present."

"Based on preliminary analysis, the global average atmospheric carbon dioxide in 2020 was 412.5 parts per million (ppm for short), setting a new record high amount despite the economic slowdown due to the COVID-19 pandemic."

hmm

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