guayule

What should Arizona farmers grow? A tire company hopes it’s guayule.

For decades, leaders [in the Southwest] have sought a way to equitably share what’s left of the shrinking supply, but there has always been one stubborn sticking point: Farmers consume three-quarters of the region’s precious water, often to grow thirsty, inedible crops like cotton and hay. Many of them have been here for a century or more, and they aren’t about to leave. So, why can’t they grow something that sucks less water?(No paywall)