Satellite Megaconstellations Pose Unregulated Geoengineering Risks, Scientists Warn
Recent studies have raised concerns about the environmental impact of satellite megaconstellations, such as SpaceX's Starlink, Amazon's LEO, and China's Guowang and Qianfan projects. According to research led by Eloise Marais, a professor of atmospheric chemistry at University College London, the rapid increase in satellite launches and re-entries since 2020 has significantly contributed to high-altitude air pollution. This pollution includes black carbon from rocket launches and aluminum oxides from satellite re-entries, which can damage the ozone layer and alter Earth's climate. By 2030, the space sector is projected to release more climate-altering chemicals into the atmosphere than the entire United Kingdom. The study highlights that black carbon released at high altitudes has a climate impact 540 times greater than surface-level emissions. With over 15,000 operational satellites currently in orbit and projections of 100,000 by 2030, researchers warn of the potential for unregulated geoengineering effe... 
