How a small group of activists got leaf blowers banned in D.C.

...gas-powered leaf blowers, lawn mowers, and similar equipment... produce more ozone pollution than all the millions of cars in California combined. Two-stroke engines are that dirty. Cars have become that clean. Leaf blowers are especially insidious... and gas-powered blowers produce far more “sound energy” in the low-frequency range. This may seem benign but it has a surprising consequence. READ MORE HERE >