• alcedine@discuss.tchncs.de
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    6 months ago

    The way you were able to put it so simply makes me really wish that explanation was correct, but unfortunately it is not.

    It’s more along the lines of:

    • All things shine away their hot, as long as they are at least a little bit hot.
      • You know the sun shines, but actually the earth shines too.
      • Actually, you shine too. (That’s why you can be seen on an infrared camera.)
    • The hotter a thing is, the harder it shines.
      • The sun is really hot so it shines really hard.
      • The earth is much less hot, and shines way, way less.
    • The earth gets more hot from catching the shine from the sun, and less hot from shining itself.
      • When the hot coming in from the sunshine is the same as the hot going out from the earthshine, the earth says the same hot.
      • When the hot coming in from the sunshine is more than the hot going out from the earthshine, the earth gets more hot.
        • And as the earth gets more hot, its earthshine becomes harder, until it’s the same as the sunshine again.
    • For the earthshine to take the hot away from the earth, it has to actually get to space.
      • Otherwise it’s like the earth shines on its own air, and the hot remains basically on (or around) the earth.
    • CO2 stops some parts of the earthshine from reaching space.
      • This part of the earthshine, when it starts from the ground, basically never gets to space.
      • It can only get to space from really high up, where there is not so much CO2 in the way.
      • But really high up is also colder, so the earthshine is less (because hotter things shine harder).
      • The more CO2 there is, the higher up we have to go, the colder it is there, the weaker that part of the earthshine is.
      • And when the earthshine gets weaker, the actual earth has to be hotter to shine out as much hot as is coming in from the sunshine. Which is why CO2 makes the earth more hot.
    • ameancow@lemmy.world
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      6 months ago

      I try to explain to people in simplified ways, it’s pure pedantry at best or totally confusing at worst to the average person if the heat that CO2 is storing is coming from the sun directly, or the heat being reflected back into space, either way the mechanical idea is the same, that CO2 stores energy.

      • Oni_eyes@sh.itjust.works
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        6 months ago

        Not really. CO2 is effectively a thermal blanket. It traps your radiant heat. The environmental heat still affects you, additively.
        The only real difference is that people also generate their own heat instead of just storing it. But you could say a thermal blanket on a snake and have the same effect.

      • alcedine@discuss.tchncs.de
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        6 months ago

        That’s the point, CO2 doesn’t store energy (well, it does a little, but not so much that it makes any difference). What it does is blocks the energy from leaving (until you reach a high altitude).

        • ameancow@lemmy.world
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          6 months ago

          CO2 doesn’t store energy (well, it does a little, but not so much that it makes any difference).

          Carbon dioxide, for example, absorbs energy at a variety of wavelengths between 2,000 and 15,000 nanometers — a range that overlaps with that of infrared energy. As CO2 soaks up this infrared energy, it vibrates and re-emits the infrared energy back in all directions. About half of that energy goes out into space, and about half of it returns to Earth as heat, contributing to the ‘greenhouse effect.’

          https://news.climate.columbia.edu/2021/02/25/carbon-dioxide-cause-global-warming/

          https://theconversation.com/climate-explained-why-carbon-dioxide-has-such-outsized-influence-on-earths-climate-123064

          I understand there’s many dimensions and factors involved in the entire process, but it’s not a wrong interpretation to say it stores more energy, even if it’s just borrowing it for a moment. It acts like both a heat sink and a thermal blanket. While I’m not a climatologist, I have a pretty good grasp of physics so I’m guessing we’re just talking about pedantic or technical differences in description of the process… something that again, average layperson does NOT need to hear about, people can barely understand scientific concepts as it is.

          The slinky model makes good sense and it’s not wrong, it was described to me BY a scientist in RL, so I will keep using it.

          edit: I genuinely wish the scientific community could embrace being “not perfect” for like, just a week or something.