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we don't even spend money to maintain our infrastructure, and we're running a massive deficit, and the current leadership in the US has been removing regulation

we don't even spend money to maintain our infrastructure, and we're running a massive deficit, and the current leadership in the US has been removing regulation connected to environmental protection. How the hell are we going to get the largest governments of the world or this country to build a mega structure to block out the sun?

gus_massa 6y ago
To make a .1mm (1/32") aluminium foil that shadows all the Earth, the cost is approximately 84 trillion dollars https://www.wolframalpha.com/input/?i=pi+*+%28%28earth+radius%29%5E2%29+*+0.1mm+*+%28density+aluminium%29+*+%28price+aluminium%29+in+dollars https://www.wolframalpha.com/input/?i=pi+*+%28%28earth+radiu... and that does not include the material to provide some structural support for the thin surface. And it doesn't include shipping and handling that is at least 10000 more if you put it at a geostationary orbit [1]. (And later remember to consider some maintenance cost, fuel for orbit adjustment...) If you want to cover only a 1% of the surface, just divide that by 100, that is about 8400 trillions dollars. [1] It's a big structure, so the calculation is more complicated than the calculation with a small satellite. Ask a rocket scientific before launching.