andyjsong
Joined 14 years ago
Karma
436
Submissions
281
Member since
Jan 25
I launch reflective clouds in the stratosphere to cool Earth aka sunscreen spray applied above the ozone layer. www.makesunsets.com
View on Hacker NewsRecent submissions
Comment · 5 months ago
Time to deploy sulfate aerosols in the stratosphere https://claude.ai/public/artifacts/73f7f362-9890-4375-9a92-1...
Comment · 6 months ago
related and addresses your concerns from one of the leading scientists in stratospheric aerosol injection: https://davidkeith.earth/stardust-is-tackling-the-wrong-prob...
Comment · 1 year ago
I think you answered your own question. But to clarify, we applied for SBIRs, but were never awarded, yet.
Comment · 1 year ago
For those who want a live example:
MakeSunsets has raised ~$1.8M from angels + VCs and another ~$133K in Cooling Credit sales over the past 12 months from individuals [1]. These purchases directly fund stratospheric aerosol injection — bringing awareness and cooling the Earth.
We’ve applied to SBIRs, explored DAOs, crowdfunding platforms, and are in conversations with family offices and UHNWI.
Most of our closed deals? They’ve come from Twitter and Substack. The key: talking directly to decision-makers — not committees.
[1] Climate dads: https://cdn.shopify.com/s/files/1/0685/0042/2976/files/Make_...
Comment · 1 year ago
>I just finished reading Termination Shock by Neal Stephenson.
What took you so long? :) The book came out in 2021. He's even written about Make Sunsets in his substack: https://x.com/MakeSunsets/status/1871734075008115081
Augment and repair are not the right words here. Since the Industrial Revolution, we've already been cooling the Earth by influencing radiative forcing; we're just doing it the worst way possible, by applying sunscreen at the wrong altitude (troposphere) and using too much of it.
Here's further reading if you'd like to learn more https://www.keepcool.co/p/no-one-is-coming-to-save-us-time-t...
Comment · 1 year ago
We're doing deliberate tests with sulfur dioxide instead of CaCO3, more info here: https://unchartedterritories.tomaspueyo.com/p/so2-injection
Comment · 1 year ago
Great, we conduct artificial stratovolcanic eruptions in NorCal every month: https://makesunsets.com/products/join-the-next-balloon-launc...
Comment · 1 year ago
https://www.economist.com/interactive/asia/2025/05/28/if-ind...
TL;DR India should be hotter, but due to sulfur dioxide emissions at ground level the rate of warming is a third less. For reference, the current rate of warming is ~0.25C per decade.
Comment · 1 year ago
Here's a good primer: https://unchartedterritories.tomaspueyo.com/p/so2-injection
Risk vs. Benefits: https://marginalrevolution.com/marginalrevolution/2025/01/ma...
Or the scientist Bill Gates calls when he wants to learn about climate change: https://makesunsets.com/blogs/news/optional-climate-change