TESCREALISM is a billionaire ideology which aims to create super-intelligent AI as a "worthy successor to humanity".
https://en.wikipedia.org/wiki/TESCREAL
https://www.youtube.com/watch?v=W1dIC287Zz0
The ruling class is most likely gonna put particles into the atmosphere to cool down the planet (With unforeseeable consequences for the rest of us of course) https://en.wikipedia.org/wiki/Stratospheric_aerosol_injection
They put "AI data-center" satellites into the orbit that so they can continue their pursuit of super-intelligent AI even after fucking the sky. In addition, the reentry of said satellites has the potential to destroy the ozone layer.
https://www.youtube.com/watch?v=oKK0dgDIxKY
We are almost certainly gonna experience societal collapse within our lifetime.
... Defintiely a thing to be concerned about, but I feel like it at least might be possible for the basics to pencil out toward 'actually makes sense', if you can make a heavy lift vehicle that 'exhales' not CO2.
Like, if you use LOX and LH2... that produces primarily water vapor.
Once upon a time we actually tried to make an actual 'space ship', an SSTO, reusable, heavy lift vehicle.
https://en.wikipedia.org/wiki/VentureStar
Got cancelled because it was decided that this project needed to be a testbed for a whole bunch of experimental components and component manufacturing tech all at the same time, and well the fancy pantsy composite honeycomb tank didn't work out.
The engineers proposed a replacement with more standard fuel tank construction and construction methods... but that got kiboshed for some reason, and then the whole project got axed.
And then not long after that, we decided that actually we should just throw money at SpaceX, basically.
So with that plan we're now 4 years behind scheduled delivery (and counting) and still have yet to generate a heavy lift vehicle that achieves orbit, but it has produced a lot of... large explosions, mostly, and OSHA and EPA violations.
=D
Making those fuels request lots of energy (at least the energy that goes out), so unless that energy is produced with renewable resources, the CO2 footprint might actually be higher (as processes aren't 100% effective, making fuel takes more energy than the fuel has).
only possible way to make it worse is with space mining and manufacturers, but we're too far away from that.
Yeah thats true too, and... thats a lot of math to do, to try and estimate that.
And also yep, might make more sense if we actually had some kind of asteroid refining ability... but we do not.
Even if we did, it is much countless times easier not to fuck up the globe than having to rely on star Trek level technology to not go extinct.