When man first walked on the moon, the carbon dioxide concentration in Earth’s atmosphere was 325 parts per million (ppm).

By 9/11, it was 369 ppm, and when COVID-19 shut down normal life in 2020, it had shot up to 414 parts ppm.

This week, our planet hit the highest levels ever directly recorded: 430 parts per million.

“This problem is not going away, and we’re moving further and further into uncharted territory, and almost certainly, very dangerous territory.”

      • Rakonat@lemmy.world
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        20 days ago

        We aren’t totally sure. Rainforest isn’t the correct term but it was probably lush and green. The evidence we had is vegetation on Antarctica approx 90 million years ago. That also has the caveat that 90 million years ago, Antarctica was further north and didn’t intersect the south pole. North Pole today is an ice sheet, so probably was a thinner ice sheet back then too.

    • Lumisal@lemmy.world
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      20 days ago

      2020 since the pandemic shut everything down. There was a one year respite.

      Basically at this point the only thing that might make things go down would be something on the scale of covid but deadlier that would make the ultra wealthy scared enough to keep things shut down long term.

      • BenjiRenji@feddit.org
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        20 days ago

        Before that it was the 2008 financial crisis.

        I wonder if Trump’s tariff chaos is causing enough economic shrinkage to bring another year of slight slow down.

        We really need to decouple economic activity from CO2 emissions or we’re just left hoping for the global economy to be in peril.

        • arin@lemmy.world
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          20 days ago

          Ironically tariffs on Imports would be good for cutting global emissions. But people will starve and economy collapse.

          • BenjiRenji@feddit.org
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            20 days ago

            Yeah, I rather reduce emissions without people starving, but radical environmental laws are apparently a no go… radical tariffs on the other hand… all good?

            • SpaceCowboy@lemmy.ca
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              20 days ago

              The “let them eat CO2” policy. Yeah, it’s insane, global warming is a solvable problem. We have the technology needed already, we’re just lacking in a willingness to change. The powers that be are going all in on stagnation while facing a crisis.

  • Paragone@lemmy.world
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    17 days ago

    There is a direct powerlaw relationship between CO2 & Earth’s stabilization-temperature…

    There’s a gotcha, though:

    Methane is about 82.5x as potent as CO2, at the 20y scale, & it’s up, too…

    Remember that scientific-paper which was held-back/suppressed until sooo many had vetted the math, that then it was allowed to be, but was attacked by many, yet-still?

    It stated simply that methane lost through leaky shipping ( of methane ), etc, was sooo harmful, that there wasn’t any way of justifying continued methane-usage…

    The current planetary-equalization-temperature, given the chemical composition of the atmosphere, is over +8C.

    All the models which contradict that, & which simultaneously contradict the actual MEASURED temperatures in the still-accelerating punctuation-between-temperate-planet-and-hot-planet-equlibrium-climates, are wrong, no matter how “politically established” they are.

    Feynman was right: “the exception proves the model/rule/theory IS WRONG.”

    At +4C, India becomes mostly-uninhabitable. China has ZERO problem with that.

    California, & Texas, & Saudi Arabia also become nearly-entirely uninhabitable ( think 50+C temperatures, throughout most, in the hottest summer days ).

    +9C is where we’re currently anchoring onto, and at this point it’s just nihilism ruling the world, lording the final “days” over the subjects-of-the-“titanic” regime, narcissistic authority-over-others, consuming all they can, while crashing the world-“ship”…

    Saudi Arabia, obviously, will simply take whatever other-territory it needs: it is a kingdom, not a civil-rights regime.

    Who will Texas war against, to take territory permanently from them, when Texas is becoming uninhabitable?

    Somebody, certainly…

    Whom will the US of A take/destroy/possess, when climate-punctuation is forcing them from their established location? Canada.

    Do you see part of why Trump is committed to butchering Canada from Canadians, now? It’s actually a SURVIVAL OF THE US strategy, though that isn’t his personal motivation: he just wants to be ruler of a continental-empire, then butcher the hated woke-EU, with Putin, so they can rule the entire West, unfettered…

    Criminally-negligent own-species-icide, is what humankind’s doing… for sake of … distractions, ideologies, & other “political” drugs/delusions…

    ===

    Here is the paper which ignores the methane, including only the CO2 ( of the part that I read, of it, at least… )

    https://www.nature.com/articles/nature19798

    Adding-in the methane puts planetary-equlibrium-temperature, on the numbers I ran a year or 2 ago, between +8 & +9C.

    Now, of course, the numbers are worse…

    ===

    … shruggeth …

    EITHER a portion of humankind is going to evolve, fast, relentlessly, drivenly, for most of this century,

    XOR The Great Filter will force-extinguish this world’s human-category kind from Universe.

    I believe that that same species-“puberty”, aka The Great Filter, controls ALL such populated-worlds, forcing maturation-or-extinguishment on every last one. Given the ratio ( who WON’T tolerate change/growing-up, and if it means killing the world, then they’re going to at-least be the rulers of the destruction-of-our-world, breaking evolution from having its transforming our world, … vs … all who honestly-will evolve, no matter what it costs us ) on this world, I’d be surprised if more than a small percentage of worlds which reach the Industrial Revolutions survives the subsequent Great Filter…

    when … when adult-technology combines with animal/tribal/political population who now utterly-dominates their own ecology:

    in the previous condition, nature always recovered, this unconscious-assumption is sooo ingrained, that unconscious-mind WON’T ALLOW that consequences/accountability COULD EVER touch it, … & it’s willing to kill the entire world, to prove that it “doesn’t have to” grow-up/change: unconscious-ego, is “god”, in its own “reality”…

    ===

    If nothing-else, it certainly is educational to be caught in a world that is devoutly deranged, ideological, rejecting empiricism for “religious” ( political ) reasons, even to the point of everybody must die…

    good motivation to break the reincarnation-prison that “life” is, the perpetual cycle of getting-caught-in-messes, life after life after life…

    Not compatible with the New Age religions, that view, obviously…

    but when you’re on a bus being driven by a murderous gang of drunks, & you can’t break their control of the vehicle, then crashing is inevitable…

    one becomes tired of reincarnation, after it has abused one enough…

    The Nature paper’s the single most-important document in the whole climate-issue: powerlaws rule nature, & discovering what the powerlaw is that relates atmospheric-CO2 to planetary-equilibrium-temperature discards all the bullshit-models ( seriously: leaving-out Greenland ice-melt until the 2020’s, & wondering why there’s “The Cold Blob” all around Greenland, & why the oceanic-predictions don’t work right… that isn’t science, that is politics! ),

    but until the methane also is included, even this paper/model is mis-assessing, significantly.

    The more people who get the underlying-powerlaw, who get the law ruling this planet’s punctuation-between-temperate-to-hot-climate, which has only begun, the better.

    The stuff about reincarnation, … it was reincarnation-memories which broke all the Abrahamic-religions, for me: evidence broke the ideology of those religions, falsifying them all.

    Took years to adapt-to, so-great a worldview-change… but changing one’s worldview when evidence falsified it, that is Science.

    I’m only leaving the re-incarnation stuff in, because among White culture, such truth isn’t usually spoken, & if anyone needs that perspective, to break the assumptions/ideology of Western habitual belief, then maybe just seeing a different perspective will give them some leverage, so they can then do their own learning, on their own, through the meditation-experiments, the inner-yoga experiments, the deepening-of-one’s-Self, until ego is dissolving, & Soul/Continuum is awakening…

    Salut, Namaste, & Kaizen, eh?

    _ /\ _