This is 31 million tons a year. Average suburban lawn deluged with 10 times as much chemical pesticides per acre as farmland. Over 70 million lbs of chemical pesticides are applied to lawns in the U.S. each year. Over 70 million tons of fertilizers are applied to residential lawns and gardens annually.
Earthworms are invaluble for soil health.
A lawn mower emits as much hydrocarbon in 1 hour as a typical auto driven 50 miles. One hour of chain saw operation equates to the emissions of an auto driven 200 miles. A typical 4 stroke lawnmower spends 40 hour per year, the equivalent to a one-week vacation, mowing the lawn. Harmful invasive plants out compete native plants reducing biodiversity, habitat value. As an example, kudzu now covers more than 7 million acres in the U.S., mostly in the southeast.