Air pollution from reentering megaconstellation satellites could cause ozone hole 2.0


Chemicals released as defunct satellites burn in the atmosphere could damage Earth’s protective ozone layer if plans to build megaconstellations of tens of thousands of satellites, such as SpaceX’s Starlink, go ahead as foreseen, scientists warn. 

Researchers also caution that the poorly understood atmospheric processes triggered by those chemicals could lead to an uncontrolled geoengineering experiment, the consequences of which are unknown.





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