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@TheSpaceGal ("Emily Calandrelli") replied to a tweet by @TheSpaceGal:
By far the best overview I've seen is from @Erdayastronaut.
He goes over the good, the bad, and the neutral.
Main points: not all rockets are created equal (some are worse than others), altitude of emission matters, reusability is important. https://everydayastronaut.com/rocket-pollution/