A bold plan to cool the Earth has gained major momentum as Isr@eli-U.S. startup Stardust Solutions raised $60 million, the largest funding ever for a company developing sun reflecting technology to fight global warming.
This breakthrough gives hope to some who believe reducing sunlight might temporarily slow climate change but it also raises serious ethical, environmental and political concerns.
What Happened?
Stardust Solutions secured $60M from investors including Lowercarbon Capital, the Agnelli family’s Exor, and former Facebook executive Matt Cohler.
The company aims to spray reflective particles in the stratosphere to limit the sun’s heat from reaching Earth.
With this latest funding, Stardust has now raised a total of $75 million.
Why It Matters
This is the first major commercial push to test solar geoengineering a controversial method once considered science fiction.
Critics fear this technology might change weather patterns globally, harm ecosystems and even trigger political conflicts between nations.
Supporters argue it could be a backup plan if global warming becomes uncontrollable and governments fail to cut carbon emissions fast enough.
Who Is Behind It?
Stardust was founded by nuclear physicists Yanai Yedvab and Amyad Spector, both former Israeli government scientists.
Investors from Silicon Valley to Europe are backing the company after seeing little political action on reducing fossil fuels.
What Will They Do with the Money?
Stardust plans to start outdoor stratospheric tests in April 2026.
They will use a modified airplane flying 18 km above Earth to test sunlight-reflecting particles.
Instead of spreading particles widely, they will collect and study stratospheric air to test their powder’s effects.
The Technology
Stardust claims its particles reflect sunlight like volcanic ash, which naturally cools the planet during major eruptions.The company insists the particles are chemically safe, don’t damage the ozone layer, and won’t harm humans or nature.
Criticism & Concerns
Experts warn that commercializing such a risky technology could be dangerous.
Gernot Wagner, a climate economist at Columbia University, said venture capitalists should not profit from technologies that carry global risks.
Many scientists believe solar geoengineering needs more research and global regulations before testing.
The Bigger Picture
Interest in geoengineering is rising as global temperatures hit record highs, while political efforts to cut oil, gas, and coal use remain slow.
Still, many question whether private companies should control technology that could affect the entire planet.
