The American Lawn Is Now the Single Largest “Crop” in the U.S.

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Americans’ lawns now cover an area three times larger than any irrigated crop in the U.S.

Americans’ lawns now cover an area three times larger than any irrigated crop in the U.S.

According to a new study from NASA scientists in collaboration with researchers in the Mountain West, there is now an estimated total of 163,812 square kilometers, or more than 63,000 square miles, of lawn in America — about the size of Texas.

The focus of the study was on the impact of lawns on the environment and water resources. The researchers found that well manicured lawns can act as carbon sinks — meaning they would help mitigate climate change by removing carbon dioxide from the atmosphere. However, maintaining a well-manicured lawn uses up to 900 liters of water per person per day and reduces sequestration effectiveness by up to 35 percent by adding emissions from fertilization and the operation of mowing equipment.

“If the entire turf surface was well watered following commonly recommended schedules there would. . . be an enormous pressure on the U.S. water resources, especially when considering that drinking water is usually sprinkled,” the researchers found. “At the time of this writing, in most regions outdoor water use already reaches 50-75 percent of the total residential use.”

The study comes as Californians are wrestling with how to care for their lawns in the midst of a four-year drought. Southern California’s water district has begun a “cash for grass” system that’s proven highly effective, with all $340 million initially set aside to convince homeowners to replace lawns with desert landscaping getting used up.

In addition, Los Angeles city officials have begun sending out complaints to the “top 1 percent of water users” urging them to change their watering habits.

“It was a wake-up call,” one resident with a 7,000-square-foot lawn, said in June. “I was like, ‘Wow, maybe we’re part of the problem.’”

“Because of demographic growth and because more and more people are moving towards the warmer regions of the country the potential exists for the amount of water used for turf grasses to increase,” the NASA researchers wrote.

Euromonitor’s Ryan Tuttle has projected U.S. lawnmower growth is on track to recapture its pre-recession levels thanks to the housing recovery and what he said was a “continued emphasis on a well-manicured yard.”

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“The American Lawn Is Now the Single Largest “Crop” in the U.S.”