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A Private Company Wants to Block the Sun, Responsibly

Stardust sold geoengineering to investors. Now it needs to sell it to the public.

A Private Company Wants to Block the Sun, Responsibly

TL;DR

  • Stardust Solutions, a private company, is developing a solar geoengineering technology to artificially cool the planet by dimming the sun.
  • The company claims to have invented a unique particle that avoids the environmental risks associated with traditional sulfate aerosols.
  • Stardust has raised $60 million and is releasing documents outlining its "guiding principles" and a framework for safe deployment, emphasizing research and transparency.
  • Key concerns remain regarding the specific nature of their proprietary particle and the ethical implications of a private company controlling planet-altering technology.
  • The company aims for its technology to be deployed only through international decision-making, potentially selling services to national governments or international bodies.
  • Stardust emphasizes that its current focus is on research and development, not deployment, to inform future governmental decisions on solar radiation modification (SRM).