How climate change is melting, drying and flooding Earth

Re:How climate change is melting, drying and flooding Earth ... by _Microft on Thursday September 26, 2019 @02:43PM (#21084079)

Space mirrors are almost impossible to build right now.

Shadowing 1% of the earth would require 10 million tons of mylar foil, which would be 100,000 launches with SpaceX's yet to complete Starship at a payload capacity of 100t (as it was announced, seems to be down a lot for the prototypes) to low earth orbit. That's not doable yet - and it is just the problem of launching the mass, nothing else.

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Re:How climate change is melting, drying and flooding Earth ... by _Microft on Sunday September 29, 2019 @03:44PM (#21109238)

I watched SpaceX' Starship update earlier. Maybe space mirrors are not that crazy anymore.

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Re:How climate change is melting, drying and flooding Earth ... by bllguo on Thursday September 26, 2019 @02:51PM (#21084175)

well spitballing.. does it have to be in space? and what if we split the mirror into many smaller ones?

what if we launched a bunch of mirrored balloons?

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Re:How climate change is melting, drying and flooding Earth ... by fooblitzky on Thursday September 26, 2019 @03:35PM (#21084638)

That would probably also have the effect of reflecting some of the energy leaving Earth back down onto it, essentially increasing the greenhouse effect.

Also, assuming you need to reflect 2% of the incoming light, and using 8ft diameter balloons, you would need approximately 2,744,628,480,000 balloons.

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Re:How climate change is melting, drying and flooding Earth ... by LargoLasskhyfv on Friday September 27, 2019 @03:31AM (#21089384)

Why think so small? Do something like this

{1] https://en.wikipedia.org/wiki/Cloud_Nine_(tensegrity_sphere)

combine that with the ideas of

[2] https://en.wikipedia.org/wiki/High-altitude_platform_station

and PROFIT!

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