I tend to think about the unexploded stuff as having a long-term negative pollution effect - agreed that the chemicals themselves aren't really a culprit. In my

I tend to think about the unexploded stuff as having a long-term negative pollution effect - agreed that the chemicals themselves aren't really a culprit. In my view though, after watching tons of combat videos especially during WWII (and even with Syria and Ukraine examples) it's not the ordinance it's what they hit with it. Damaging infrastructure and chemicals and whatnot can have lasting effects by way of the ordinance dropping. Otherwise planes flying over taking recon photos are a different story. Also I was just considering scale of military flights versus civilian. Yes they burn a lot of gas and haul ass, but there are way many more passenger and cargo flights day in and day out. I do love the idea of improving cargo shipping by sky in my lifetime. As my Uncle pointed out once, having dealt with Passengers and Cargo, "Cargo doesn't complain."