On the river : 702 cfs -- Farms : 686 cfs. The law of the river ; Growing a crop of humans in the desert ; All those people have to eat -- Cities : 2,790 cfs. The only watering hole in the whole county ; Flowing uphill to money ; Whose rights? -- Dams : 6.490 cfs. Claiming and reclamation ; After the dam ; Protect the Green River at all cost ; The map of what's next -- Fish : 9,080 cfs. Larval triggers ; Humans are a species, too ; What's the point of a wild river? ; One big fish tank -- Recreation : 9,180 cfs. Through the gates ; What is it worth? ; We save what we love and we love what we know -- Future risks : 10,600 cfs. Energy and power ; Water is where the fight is ; Climate change is water change -- Future plans : 6,820 cfs. This land is your land ; You can't just sell out to a city ; Getting comfortable with risk -- Confluence : 3,220 cfs -- Timeline

The Green River, the most significant tributary of the Colorado River, runs 730 miles and has been stopped up by dams, slaked off by irrigation, and dried up by cities. Former raft guide and environmental reporter Heather Hansman paddles the river from source to confluence to see what the experience might teach her about the present and future of water in the West