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Comments on If the poles ice would melt, would it be critical for human survival to try to bring it back?

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If the poles ice would melt, would it be critical for human survival to try to bring it back?

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If humanity will cause natural dissolution of all ice in planet earth's poles and the sea level would indeed rise tremendously all over the world --- would it be justified to try to "reverse" the situation of the poles? Would this be critical, or rather in general, would humans be able to thrive on earth and to even do climate engineering just without icing back the poles?

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How to reverse it? (2 comments)
How to reverse it?
Lundin‭ wrote over 3 years ago

How exactly can you reverse it? The sea water will freeze there naturally if the climate is cool enough all year around. Seems to me the only way to reverse it is to drop global temperature back to normal levels. What's "climate engineering", sounds like something from sci/fi.

Pastychomper‭ wrote about 3 years ago

The "how" could be an interesting thread in itself. Possible methods I've heard of include sequestering greenhouse gases and covering huge areas of ocean in white material to reflect more sunlight. Both would need to be done on a vast scale, making them effectively sci-fi for now, but I wouldn't rule out the possibility if enough people thought it needed doing.