This may be inaccurate. Due to the simpler engine design of a mower combined with the pollution curbing technology in use in cars and trucks (such as catalytic

This may be inaccurate. Due to the simpler engine design of a mower combined with the pollution curbing technology in use in cars and trucks (such as catalytic converters), mowers can be much worse. Source: http://abcnews.go.com/Technology/Story?id=98532&page=1 http://abcnews.go.com/Technology/Story?id=98532&page=1