Space. They're killing radio astronomy, endangering optical astronomy and threatening everything else in orbit, from telecoms, to earth observation, to the ISS.

They're also spreading rare earth metal everywhere when the satellites burn up and wasting a lot of energy to get them up there when we're facing an energy crisis.

Just one? I'll do you a few better...

• The Falcon 9 rocket put a hole in the ionosphere

• Falcon 9 makes use of kerosene, which puts black soot into the atmosphere (if they used solely liquid oxygen or liquid hydrogen the only thing left would be water vapour)

• Serious damage at a Texas base (caused craters and debris to scatter around remote cameras)

• An explosion on the launch pad during a test caused damage

• Boca Chica...

  • Massive amounts of dust, which contain toxic shit

  • Destroyed the launchpad (scattering large chunks of concrete into delicate marine and coastal sanctuaries nearby)

Edit: fixed up formatting