How much do SpaceX's reentering Starlink satellites pollute Earth's atmosphere? 

 SpaceX's Starlink satellites now make up 40% of reentering satellite debris. But is Elon Musk's space company the worst polluter of Earth's upper atmosphere? 

https://cdn.mos.cms.futurecdn.net/p77TQsHXLGUAn9Ks6yZAXD.jpg

https://www.space.com/spacex-starlink-reentry-pollution-damage-earth-atmosphere