As above so below.
Overhead approximately every minute a jet goes over, and there are several other major approaches to the airport. At night when I am trying to get to sleep the overhead traffic can become like a earworm, relentless with its distracting noise. I sometimes wonder what all that sky traffic is doing to the air and how much of those chemicals of burnt fuel fall to Earth? Only time will tell, though I sure it will not be a pretty story.
Choe McCracken & Will Worthington