> There are also quite convincing studies There is noticeable quantitative difference. People 40+ and older remember from their childhood how car's windshield

> There are also quite convincing studies There is noticeable quantitative difference. People 40+ and older remember from their childhood how car's windshield, lamps and grille were covered with dead insects every time you took long drive outside cites. Today you can drive small country roads for a day and get only small number of insects. It used to be that you could walk in the garden and count easily 10-20 ladybugs eating aphid's from your planted flowers. My mother used fight aphids by spraying vinegar soap mix. Today the exact same spot with same flowers has no aphid problem and very few ladybugs.