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TO GO WITH AFP STORY BY VERONIQUE DUPONT, Environment-US-drought-California Landscapers David Puac (R) and George Navoretti (L) install drip irrigation and a new drought-tolerant landscape in the front yard of Larry and Barbara Hall's home in the San Fernando Valley area of Los Angeles on July 17, 2014. In an effort to get homeowners to rip out their water-guzzling grass lawns, the local water authority and the city of Los Angeles are offering cash incentives of three USD per one square-foot (929.03cm²) of grass removed and replaced with drought-tolerant landscaping. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)

TO GO WITH AFP STORY BY VERONIQUE DUPONT, Environment-US-drought-California
Landscapers David Puac (R) and George Navoretti (L) install drip irrigation and a new drought-tolerant landscape in the front yard of Larry and Barbara Hall's home in the San Fernando Valley area of Los Angeles on July 17, 2014. In an effort to get homeowners to rip out their water-guzzling grass lawns, the local water authority and the city of Los Angeles are offering cash incentives of three USD per one square-foot (929.03cm²) of grass removed and replaced with drought-tolerant landscaping.  AFP PHOTO / Robyn Beck        (Photo credit should read ROBYN BECK/AFP/Getty Images)