At the southern edge of their range, salmon on the central coast of California feel the effects of climate change more drastically than their northern relatives.

Robert Doyle’s story is about a Concord, California, boy who loved gardening and went on to change the world. He started out wielding rakes, shovels, and chainsaws for the East Bay Regional Park District. He ended up raising a billion dollars and doubling the district’s size, making it the largest local park agency in the country.