Space Shades: Humanity's Last Hope | Answers With Joe
Joe Scott1 HN recommender · recommended in 1 month, 2020-2023
1.1M views · 6 years ago · explainer · dated
Joe Scott takes a serious look at space sunshades as a climate fix, asking how big they would need to be, what they would cost and whether they would work. He draws on Roger Angel's paper and launch options.
Linked as a worked look at the maths and assumptions of orbital sunshades, which concludes they are impractical.
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3 comments from Hacker News
Since the article doesn't talk about the fun details: ▶ this video , talks about how big it would need to be, among other things.
Here's a video of someone going through the maths and their various assumptions: ▶ this video TLDR: It's preposterous in just about every way, from the number of shades needed to the costs to the number of launches required.
Solar shades the expensive way (as in right now, launch from Earth): ▶ this video After kickstarting a Lunar economy so you can manufacture and launch them well outside Earth's gravity well: link