There's also the outer space living and the underwater/underground cities, too.
Yeah, that's all fine and well, but the problem is: motivation.
I find ocean colonisation interesting though, especially because there have been incentives to go to sea for millenia already.
More stabilized hydrogen and nuke power plants can handle.(i think)
Hydrogen? You mean the stuff that's so difficult to manufacture and store?
Fuel consumption for spacecraft?
New propulsion than standard fuel, fine-tuning for best performance and less pollution. (or not... depends on the remaining time until our atmosphere gets toxic... or not... )
Uh... no. Kerolox gives basically the same byproducts as any other fossil fuel combustion (CO2 and water vapour). Hydrolox is very environmentally friendly, with exhaust that is predominantly water vapour with small amounts of hydrogen peroxide and ozone.
I'm not sure what the exhaust products of hypergolics are, but I really don't see why you'd want to use them out of choice for a launch vehicle.
Solid propellants are unfriendly, considering that they introduce aluminium oxide powder and hydrogen chloride into the environment. But that new nitrogen compound could change all that, provided that it's plausible as an oxidiser.
Either way their chemistry contributions to the atmosphere are not really anything to worry about, considering that constributions from other forms of transport are far higher... I dunno, maybe with a increase in the frequency of rocket launches, it might be a considerable contribution.
The bigger problem is ozone depletion... rockets will introduce large amounts of water vapour, for example, into the ozone layer, and that can be destructive.
About the non-recyclable, launch to an high-pressure and temperature planet... It will melt up.
I hope you're kidding. :shifty:
Building/Manufacturing materials(or lack of it?)?
Mining asteroids or moons. Otherwise, better don't be claustrophobic and start your subsurface work...
We don't need to get concrete, or aluminium, or iron from asteroids. It's pretty abundant here, at a cost orders of magnitude less.
Solar power and/or bio-fuels... Otherwise, get a bike and put 2 extra wheels, a roofing and an light windshield onto it...
Good luck driving a solar powered car, at night. Or when it's raining. Or having it be practical at all.
Pedal power car? Not practical unless you want to go just to the corner cafe...
What about the lack of gravity, in the forced space living's worst-case scenario?
Good question... Do an spinning object in space provides gravity?
Yes it does, that's the principle centrifuges- used to train astronauts and pilots- operate on. Where they are used on Earth to generate acceleration multiple times that of Earth's gravity, entire spacecraft (or sections of them) can be spun in space, to generate Earth-equivalent artificial gravity.
What about natural disasters?
VERY accurate predictions and/or forecasts, seismic monitoring and space object trajectory predictions.
Sufficient building codes and proper disaster response would certainly help...