The author of "Rainwater Harvesting for Drylands and Beyond" landscaped his yard in Tucson, Ariz., to capture storm water runoff. Brad Lancaster, who teaches at the University of Arizona, traveled to Sacramento to share his secrets with California gardeners. "Not only are you helping your own garden, but you're doing something for the community at large by cutting down on the amount of drinking water you use for irrigation," said Lancaster.

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