Story perspectives

Stardust Solutions Secures $60M for Solar Geoengineering Trials

10/26/2025

49 10

Summary

Story summary

Stardust Solutions announced a $60 million fundraising round, the largest for a solar geoengineering company.
Lowercarbon Capital led the round, signaling investor confidence despite concerns over the technology's risks.
Gernot Wagner, climate economist, argues that pursuing solar geoengineering via a for-profit model is unwise.
Stardust plans controlled outdoor experiments with reflective particles starting in April and seeks government contracts aligned with a cautious approach.

1 of 1

Story summary

Stardust Solutions announced a $60 million fundraising round, the largest for a solar geoengineering company.
Lowercarbon Capital led the round, signaling investor confidence despite concerns over the technology's risks.
Gernot Wagner, climate economist, argues that pursuing solar geoengineering via a for-profit model is unwise.
Stardust plans controlled outdoor experiments with reflective particles starting in April and seeks government contracts aligned with a cautious approach.