Who gains from saving nature
Ledger 1 : 33 — For each dollar financing nature-based solutions in 2023, about $33 financed activities harmful to nature. (UNEP)
Cases / Carbon capture and climate intervention · United States · 2025

Stardust Solutions raises $60 million for solar geoengineering

Short record: the main facts, with sources. A full case file has not been prepared.

Nature's voice · report
No measurement of the harm done to me here is on record.
Did nature suffer? Not measured.
Not on record
  • The record does not name which of my species, waters, soils or forests were harmed.
What the record lacks: 3 none on record · 1 not measured · 1 unclear See the gaps

Israeli-US startup Stardust Solutions raised $60 million in October 2025 to develop solar geoengineering, a method of reflecting sunlight to cool the planet. The sources name no test location and no government contract.

What?
Stardust Solutions, an Israeli-US company, raised $60 million in October 2025 for solar geoengineering, with Lowercarbon Capital leading and Exor's venture arm participating. E&E News
Where?
The sources do not say where Stardust plans to release its particles.
When?
October 2025 funding round. E&E News
Who?
Gained
  • Stardust Solutions — raised $60 million in the October 2025 round, bringing total funding to $75 million; applied for a patent on its particles E&E News
Lost
None on record
Harmed
None on record
Why?
Not stated in the sources reviewed.
How?
The company is seeking government contracts to produce, deliver and monitor its particles, and has applied for a patent on them. E&E News
6 of 6 questions answered from the record

What happened

The record, in order.

E&E News reported on 24 October 2025 that Stardust Solutions raised $60 million in a round led by Lowercarbon Capital, with Exor's venture arm also taking part, bringing its total to $75 million.

E&E News reported that the company has applied for a patent on its particles and is seeking government contracts to produce, deliver and monitor them.

A senior Stardust executive told E&E News that investors back a safe, responsible and controlled option for sunlight reflection.

SRM360 reported that $267 million was spent on solar geoengineering through 2025, 97% of it going to Global North institutions, and listed Stardust's investors as the largest funders at $75 million.

    In court and with insurers

    Every proceeding and every insurer decision on record.

    Lawsuits and rulings

    No court case on record. No court has ruled on this case.

    Insurers

    No insurer decision on record.

    What we don't know

    Undisclosed, unproven, untried: recorded as data.

    Nature

    • Not measured Harm to nature: The record holds no measurement of harm to nature.

    Record

    • None on record Not stated: where the company plans to release its particles, or whether any government contract has been signed; the sources say it is seeking contracts.
    • None on record Not stated: what returns the investors expect from the round.
    • None on record The sources give no independent assessment of the company's safety claim, which is the company's own statement.
    • Unclear Not stated: the company's valuation and its total spending to date.

    Did the harm stop?

    Not stated in the sources reviewed.

    Who paid?

    Not stated in the sources reviewed.

    Sources

    Voices on record: — Company or project— Government and regulators— Courts✓ Press and investigations— Communities and civil society— Researchers

    Press and investigations

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