A recent study highlights that pollution from satellites burning up in the atmosphere is unintentionally geoengineering the Earth's climate by reducing sunlight. Researchers warn that as the space industry grows, this could have significant environmental impacts, akin to deliberate geoengineering strategies like aerosol injection.

• 01The study published in Earth’s Future warns that satellite pollution is already affecting sunlight reaching the Earth.
• 02Eloise Marais, a professor at University College London, likens satellite pollution to an unregulated geoengineering experiment.
• 03Satellite launches have tripled in the last five years, primarily driven by companies like SpaceX and Blue Origin.
• 04By 2029, pollutants from satellites will account for 42% of the space industry's climate impact, similar to solar geoengineering effects.
• 05Rocket launches are projected to emit 870 metric tons of soot annually by 2029, comparable to soot emissions from UK passenger cars.

The unregulated pollution from satellite launches could lead to significant changes in climate patterns, affecting weather and environmental conditions globally.