this post was submitted on 10 Aug 2025
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[โ€“] Thrawn@lemmy.dbzer0.com 3 points 1 month ago (1 children)

Kinda. The exact quote for it being lowered down without heating up from reentry is "the added ice would cool the water down by only about a millionth of a degree" But yea essentially useless in the big scheme of things.

The ice would be massively better used in space habitats or terraforming other places.

[โ€“] Klear@sh.itjust.works 4 points 1 month ago (1 children)

You stopped reading too soon:

Unfortunately, comets would affect the Earth's temperature in another way. In addition to dust and water, they contain a small amount of CO2, which would be released into the atmosphere as the comet melted. This CO2 would change Earth's radiation balance

[โ€“] Thrawn@lemmy.dbzer0.com 3 points 1 month ago

Right you are I missed that. So comets at least aren't workable.