When it rains in the desert, it pours. Why not capture all that water?

With the Western United States stuck in a 22-year drought, some residents of Tucson, Ariz., have a secret to surviving in the desert.

They’re harvesting rainwater.

Evaristo Ramirez Barajas is one of them. Despite the sweltering desert heat, his yard is shaded with mesquite trees, creosote and cacti.

“It's been not a good season for Tucson,” Barajas says. “We've been struggling with this monsoon a lot, but even [with] that, we still have water.”