And grass is a good thing.
Naturalists say it prevents soil erosion, generates oxygen and acts as a natural air conditioner.
For homeowners with a postage stamp-size lawn, the new, lightweight manual push mowers might be the right choice. Made of alloys and weighing under 25 pounds, they are quiet and non-polluting. Purists claim push mowers give grass a quicker, clean cut with less trauma to the turf. Also, they don't throw debris, and when you stop pushing them, their blades stop. Maintenance, however, can be a problem because the retailers who sell push mowers usually do not offer sharpening services.