As a retired horticultural professional, I agree that leaf blowers (and line trimers, and mowers) are obnoxious and need to be regulated. And the noise and air pollution aren’t the only problems. One issue I NEVER see addressed is the amount of plastic introduced into the ecosystem via the use of line trimmers. Every time a line trimmer is used, hundreds (if not thousands) of tiny bits of plastic line are distributed in the soil. Plastic pollution is not just a threat to oceans, but to land as well. This is the cheap and easy way to maintain landscapes, but there are other costs to this laziness.