California’s largest lake is shrinking and migratory birds are disappearing as its water is now too salty for fish – an environmental disaster and a health hazard for humans. In Iowa, activists use faith to mobilize farmers in a movement to adopt new measures like perennial crops to sequester carbon in their soils, and to get paid for doing it. With federal government support, private landowners in Pennsylvania are managing their forests for diversity, providing better habitat for declining species of songbirds like the golden-winged warbler.