1.1M views · Aug 3, 2020 · 28:46 · 1 HN recommender · 3 mentions · discussed 2020–2023
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.
Why Hacker News points people here: Linked as a worked look at the maths and assumptions of orbital sunshades, which concludes they are impractical.
“Here's a video of someone going through the maths and their various assumptions”HN comment, 2021
“talks about how big it would need to be, among other things.”
Covers fun details such as how big a sunshade would need to be.
Since the article doesn't talk about the fun details: this video , talks about how big it would need to be, among other things.
“Solar shades the expensive way (as in right now, launch from Earth)”
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
“Here's a video of someone going through the maths and their various assumptions”
Works through the maths and assumptions of space sunshades; concludes impractical.
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.
