In this season of growing and mowing lawns, the EPA has a number regarding the amount of water Americans use to water their lawn:

The average American family uses 320 gallons of water per day, about 30 percent of which is devoted to outdoor uses. More than half of that outdoor water is used for watering lawns and gardens. Nationwide, landscape irrigation is estimated to account for nearly one-third of all residential water use, totaling nearly 9 billion gallons per day.

The American lawn is alive and well – in part because of all this water. To get the lawn Americans typically want, green, well-manicured, and free of weeds, much is required. And without watering, it might not even get off the ground. Some parts of the country have regular rain that can support this kind of grass. But, it may not meet the standards of Americans and other areas do not have this rainfall. I, too, have had the experience of flying over the West and then seeing Las Vegas emerge with its telltale green lawns.

The American lawn is also alive and well because of expectations and values attached to this lawn. It signifies success and middle-class suburbia. Yes, it requires water. But if the water supply was severely diminished, would the lawns necessarily disappear? Or would people adjust their behavior to make sure the lawns remain in some smaller or similar form? Just how much water would Americans be willing to devote to green lawns?