Live data from Hacker News

Viewing profile — andyjsong

andyjsong

HN member
Joined
Wed, Jan 25, 2012, 4:39 AM UTC
HN karma
436
Public activity
281 items

About andyjsong

I launch reflective clouds in the stratosphere to cool Earth aka sunscreen spray applied above the ozone layer. www.makesunsets.com

Recent public activity

  1. comment
    Comment #48085032

    Time to deploy sulfate aerosols in the stratosphere https://claude.ai/public/artifacts/73f7f362-9890-4375-9a92-1...

  2. comment
    Comment #47981888

    related and addresses your concerns from one of the leading scientists in stratospheric aerosol injection: https://davidkeith.earth/stardust-is-tackling-the-wrong-prob...

  3. comment
    Comment #47981564

    [flagged]

  4. comment
    Comment #45369024

    I think you answered your own question. But to clarify, we applied for SBIRs, but were never awarded, yet.

  5. comment
    Comment #45362709

    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 pu…

  6. comment
    Comment #45357373

    >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.…

  7. story
  8. story
  9. comment
    Comment #44565814

    We're doing deliberate tests with sulfur dioxide instead of CaCO3, more info here: https://unchartedterritories.tomaspueyo.com/p/so2-injection

  10. comment
    Comment #44565796

    Great, we conduct artificial stratovolcanic eruptions in NorCal every month: https://makesunsets.com/products/join-the-next-balloon-launc...

  11. comment
    Comment #44565786

    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 les…

  12. comment
    Comment #44369881

    Here's a good primer: https://unchartedterritories.tomaspueyo.com/p/so2-injection Risk vs. Benefits: https://marginalrevolution.com/marginalrevolution/2025/01/ma... Or the scientis…

  13. story
  14. story
  15. story
  16. comment
    Comment #43249067

    Termination shock is already happening as we've been decreasing the amount of SO2 in the air we breathe. Peak global SO2 emissions were 131 million tons in 1979. Now it's 69 millio…

  17. story
  18. comment
    Comment #43135150

    If you think there is a chance we're going to start deploying stratospheric aerosol injection, might as well get good at it, if you want to help scale up deployments: https://makes…

  19. story
  20. comment
    Comment #42721507

    Thanks for sharing the link! The article focuses on Marine Cloud Brightening (MCB), an unscalable method of solar radiation management. MCB would require thousands of autonomous bo…

  21. story
  22. comment
    Comment #42708330

    It's not banned, where are you getting this information? We've deployed 124 times for our customers mostly in Northern California. If you want to learn more: https://makesunsets.co…

  23. story
  24. story
  25. story