From a grassroots toxic canal clean up to a long-standing watershed war, we’ll hear from U.S. water stewards across the country. They’re people working to protect and restore our valuable fresh waterways and to keep water resources part of a shared global commons.

Freshwater is our most vital natural resource. It’s a finite one too, although we don’t always treat it that way. So how do we protect our water supply? Many say start at the source––take care of the rivers.

From Australia to Arizona, we take a look at three growing communities facing water shortages along with the pressure to grow. We’ll hear their different approaches to finding solutions — including denial.