To support your anecdote, I've seen this comment posted by a number of users the last few months in relation to environmental-destructive posts. And to add my o

To support your anecdote, I've seen this comment posted by a number of users the last few months in relation to environmental-destructive posts. And to add my own data point, I too, have noticed the same as you on road trips through various parts of western US, although I always just thought I was just crazy. I can't say as of when exactly, but I really started noticing the last 3-4 years. Even hiking around where insects used to be numerous on warmer days, sometimes annoying in-your-face at every turn, seem to be nearly void of creatures.