As drought and climate change tighten their grip on the American West, the sight of fountains, swimming pools, gardens and golf courses in cities like Phoenix, Las Vegas, Los Angeles, Salt Lake City, Boise, and Albuquerque can be jarring at first glance.

Western water experts, however, say they aren’t necessarily cause for concern. Over the past three decades, major Western cities — particularly in California and Nevada — have diversified their water sources, boosted local supplies through infrastructure investments and conservation, and use water more efficiently.