I would like to know how much atmosfere pollution is created every time a rocket is lunched, just … simple just …, to make a comparison to how much decrease in global pollution that NASA project had in mind, independently of his cost.
As I’ve written here before e-planes should be viable only if electrons could be obtained by a non convencional nuclear fusion. And that is tens (if not hundreds) away from now, although I wish it should happen sooner.