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Can it ever be sustainable?
Some rockets can be propelled by liquid hydrogen + oxygen producing plain old water. You can generate hydrogen and oxygen by electrolysing water with solar or wind power. So that'd be perfectly renewable and zero carbon (excluding the building of various parts of the system).
Satellites etc. are surely worth their CO2 cost anyway. We're better off with a communications satellite or a CO2-measuring satellite than some dudes jetting off on holiday.
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Ha, I'd say we have more than enough environmental problems at the moment for rocketry not to add to that ...
There are around 100 launches per year, I reckon that's a drop in the ocean next to India's and China's, and therefore the rest of the world's, carbon output.
frankenbike
Backstop
@Oliver Schick
Ha, I'd say we have more than enough environmental problems at the moment for rocketry not to add to that ...
Can it ever be sustainable?
Presumably, there's stuff like 'oh, but we'll use rockets to repair the atmosphere' or something?
Not something I've been following at all.