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Space Shades: Humanity's Last Hope | Answers With Joe

Joe Scott · 1.1M views · 2020-08-03 · 28:46

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Overview

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.

On Hacker News

Linked as a worked look at the maths and assumptions of orbital sunshades, which concludes they are impractical.

Recommended by 1 HN people across 1 months · HN mentions 2020–2023

Topics

Climate policy, solutions & debateSpace exploration & spaceflight
Search by tags
solar shadesclimate engineeringspace launchroger angelstarship

What people said

laweijfmvo · 2023-12 · Recommendation

Since the article doesn't talk about the fun details: [VIDEO] , talks about how big it would need to be, among other things.

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flukus · 2021-01 · Reference

Here's a video of someone going through the maths and their various assumptions: [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.

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pas · 2020-09 · Reference

Solar shades the expensive way (as in right now, launch from Earth): [VIDEO] After kickstarting a Lunar economy so you can manufacture and launch them well outside Earth's gravity well: [LINK]

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Sources

Video by Joe Scott, played through YouTube.

Data and selection notes

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