this post was submitted on 18 Jul 2023
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[–] Celivalg@iusearchlinux.fyi 2 points 1 year ago (1 children)

Yeah, sad thing is we are already signed up for the next 20 years, as in even if we stopped emitting everything tomorrow, we would still have +2°C in 20 years...

And how realistic is stopping everything tomorow?

+3°C.. we would need to have a new coronavirus crisis every years, not just a new one, but stack them on top, in terms of emissions. Ofc you can't have more then one global confinement at a time (doesn't make sense to double confine someone) so that wouldn't even work.

We. Are. Fucked.

[–] alvvayson@lemmy.world -1 points 1 year ago* (last edited 1 year ago) (1 children)

We aren't locked in for the next twenty years, only the next ten years.

We could build a thousand RBMK like nuclear reactors in a decade and then suck out 50 ppm of CO2 out of the atmosphere in another decade.

Would cost $500B to $1T or so.

We just don't really think global warming is serious enough to warrant an action plan at the scale of the Manhattan project, Apollo program or Messmer plan.

[–] SkyeStarfall@lemmy.blahaj.zone 0 points 1 year ago (1 children)

Removing CO2 from the atmosphere is a speculative technology at the moment.

Like, yes, we "can" do it, if you ignore all the materials and energy needed to perform that process. And that's just in theory, in practice its bound to be far more difficult.

No matter how you put it, it's easier to just... Not release the pollution in the first place. If it's too difficult to stop polluting, it will certainly be too difficult to remove that pollution that has been already released. Entropy and all that.

Removing CO2 from the atmosphere is something we should only really start thinking about when the world already runs nearly entirely cleanly.

[–] alvvayson@lemmy.world -1 points 1 year ago

You ignore political realities.

An Apollo scale program to extract carbon emissions from the atmosphere could be financed by the OECD countries without heavily impacting their economies.

Building a thousand nuclear plants with reduced safety requirements in a remote place would not run into NIMBY problems.

Stopping emissions globally would require Chinese political will, since they emit more than all of the OECD combined.