Related coverage on solar geoengineering.

Stardust’s solar geoengineered $10 billion plan to blot out the sun

Israeli-American startup Stardust Solutions has raised $75 million to develop technology that could cool the Earth by reflecting sunlight. Is solar geoengineering becoming a real industry? Or could it be a new threat?

Make America cool again, says Make Sunsets a startup that’s geo-engineering the climate

Make Sunsets, a geoengineering startup based in South Dakota, continues to attract both controversy and attention as it pushes ahead with its mission to "Make Earth Cool Again"—literally. T

Make Sunsets is launching geo-engineered cooling credits with VC money

Critics argue that Make Sunsets bypassed essential scientific protocols, including public engagement and independent impact assessments, raising concerns about the ethical implications of manipulating the climate without comprehensive oversight. ​