That’s true, my small city processes the waste from over a million people (they provide sewer to the suburbs) every day which is about the same as the number of

That’s true, my small city processes the waste from over a million people (they provide sewer to the suburbs) every day which is about the same as the number of Americans who fly. Plus they process all the other water that goes down the sewer from showering, laundry, etc. So just one small city is probably processing much more than all the planes in the country combined.