Comment on xkcd : Timeline of Temperature Changes on Earth

• FaceDeer@kbin.social ⁨1⁩ ⁨year⁩ ago

  Your "step three" is geoengineering.

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  • starman2112@sh.itjust.works ⁨1⁩ ⁨year⁩ ago

    I guess when I think of “geoengineering,” what comes to mind is cloud seeding and albedo modification

    Yeah, let’s do some light geoengineering after we’ve solved the energy issue

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    • Comment105@lemm.ee ⁨1⁩ ⁨year⁩ ago

      Let’s slow hungry m humanity to go extinct and prevent this shitshow from establishing a permanent presence among the stars.

      Imagine the amount of abuse and suffering and stress we can prevent by just not saving humanity? By not letting our numbers climb to the trillions?

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• LtLiana@startrek.website ⁨1⁩ ⁨year⁩ ago

  As long as they are operated by for-profit entities who are more than willing to ignore safety procedures and best practices, and lobby for lower safeties, nuclear energy cannot be safe, regardless of the underlying technology.

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  • starman2112@sh.itjust.works ⁨1⁩ ⁨year⁩ ago

    Yep, this argument again. And like everyone who’s ever seen this argument has already said, renewables are not currently at a point where they can fully take the load off of fossil fuels. Every nuclear power plant accident put together doesn’t even come close to the damage that safe fossil fuels have done to the planet. We need to ditch fossils ASAFP, and nuclear, even if it’s funded and ran by capitalists, is better than fossils, which are already funded and ran by capitalists.

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    • LtLiana@startrek.website ⁨1⁩ ⁨year⁩ ago

      If that’s your position, I don’t weep if your family gets killed in a nuclear accident.

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      • starman2112@sh.itjust.works ⁨1⁩ ⁨year⁩ ago

        I will weep for your family when they’re killed by an ever-destabilizing climate.

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• troyunrau@lemmy.ca ⁨1⁩ ⁨year⁩ ago

  Let’s be honest, renewables are already geoengineering (changing water flow, air flow, albedo, etc.), just done in an uncontrolled fashion. Nuclear energy or renewables do not solve the long term problem unless coupled with large scale geoengineering. Granted all of the above are vast improvements over fossil fuels.

  Thermodynamics is a bitch. If you make a nuclear reactor, you make heat. You add additional heat to the system, either at the source (energy production isn’t 100% efficient), or at the point of consumption (the waste product of using energy is always heat). So, if you switch everything to nuclear, you’re still adding heat to the system that wasn’t there before (in addition to whatever the sun is blasting us with). If energy use goes up, and it always does, it just means we add more heat faster.

  Literally the only way we can have our cake and eat it too is geoengineering. Solar shields in the earth-sun Lagrange point are my preference and least disruptive to other natural processes.

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  • PoisonedPrisonPanda@discuss.tchncs.de ⁨1⁩ ⁨year⁩ ago

    If we reach a point where such enormous space installations are possible with multi national budgets and technological progeess, we still have to live with the largest mass extinction, Destroyed soils, disequilibrated ecosystems.

    Then what? Life will be possible. But not as worthwhile as it was.

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    • FaceDeer@kbin.social ⁨1⁩ ⁨year⁩ ago

      Whether life is "worthwhile" is a subjective and personal decision. Different people will have different considerations of what makes life "worthwhile."

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      • PoisonedPrisonPanda@discuss.tchncs.de ⁨1⁩ ⁨year⁩ ago

        I think not having meteorological anomalies on a yearly basis, growing crops in a climate where humanity evolved, and having no dead zones on the planet is on a little bit different step of the hierarchy of needs than what people have different consideration on.

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  • LongbottomLeaf@lemmy.nz ⁨1⁩ ⁨year⁩ ago

    Use the renewable and nuclear energy to remove the IR shield in the atmosphere (store atmospheric carbon in the ground), rather than put a shield in space. A space shield doesn’t address CO2 levels in the atmosphere or oceans.

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    • troyunrau@lemmy.ca ⁨1⁩ ⁨year⁩ ago

      It’s just a question of scale and thermodynamics. Using the renewables to do carbon capture is probably a good idea, because anything is better than the giant greenhouse gas. But that really is geoengineering too. And it’ll only work for a period. As energy use increases, you will modify the planet more and more simply due to collecting and distributing the energy. Energy must flow from concentrated forms to dispersed forms. That dispersed form is usually heat.

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