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Re: Hothouse Earth: "It's worse than we thought"

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vallor <vallor@cultnix.org> wrote:

> I'll just come out and say it, to get it out of the way:
>     IT'S WORSE THAN WE THOUGHT.
> 
><https://www.theatlantic.com/science/archive/2018/08/earths-scorching-hot-history/566762/>
> 
> Obquote:
>  _ _ _ _ _ _ _
> But the most striking feature of this early age of mammals is
> that it was almost unbelievably hot, so hot that around 50
> million years ago there were crocodiles, palm trees, and sand
> tiger sharks in the Arctic Circle. On the other side of the
> blue-green orb, in waters that today would surround Antarctica,
> sea-surface temperatures might have topped an unthinkable 86
> degrees Fahrenheit, with near-tropical forests on Antarctica
> itself. There were perhaps even sprawling, febrile dead zones
> spanning the tropics, too hot even for animal or plant life of
> any sort.
> 
> This is what you get in an ancient atmosphere with around 1,000
> parts per million (ppm) of carbon dioxide. If this number sounds
> familiar, 1,000 ppm of CO2 is around what humanity is on pace to
> reach by the end of this century. That should be mildly
> concerning.
> 
> "You put more CO2 in the atmosphere and you get more warming,
> that's just super-simple physics that we figured out in the
> 19th century," says David Naafs, an organic geochemist at the
> University of Bristol. "But exactly how much it will warm by
> the end of the century, we don't know. Based on our research
> of these ancient climates, though, it's probably more than we
> thought."
> 
> Last week, Naafs and colleagues released a study in Nature
> Geoscience that reconstructs temperatures on land during this
> ancient high-CO2 hothouse of the late Paleocene and early Eocene
> epochs—the sweltering launch to the age of mammals. And the
> temperatures they unearthed are unsurprisingly scorching.
>  _ _ _ _ _ _ _
>

Sure.  We're past the tipping point and the rate of change is
accelerating. There's no going back now, CO2 restraint or not. 
Prepare for the World's -other- stable state.  Swimsuits are 
acceptable as evening wear.

-- 
^Ï^     My pet rock Gordon just is.

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Thread

Hothouse Earth: "It's worse than we thought" vallor <vallor@cultnix.org> - 2018-08-27 22:05 +0000
  Re: Hothouse Earth: "It's worse than we thought" snipeco.2@gmail.com (Sn!pe) - 2018-08-27 23:21 +0100
    Re: Hothouse Earth: "It's worse than we thought" Checkmate <ricksabian1@gmail.com> - 2018-08-27 15:48 -0700
  Re: Hothouse Earth: "It's worse than we thought" Skeeter <fnvw@invad.invalid> - 2018-08-27 16:24 -0600
    Re: Hothouse Earth: "It's worse than we thought" Skeeter <fnvw@invad.invalid> - 2018-08-27 16:37 -0600
      Re: Hothouse Earth: "It's worse than we thought" Skeeter <fnvw@invad.invalid> - 2018-08-27 18:41 -0600

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