Where Bad Air Carries Peril and Promise

Can the Science and Resources That Polluted the San Joaquin Valley Be Poured Into Building a More Just, Livable Region?

California’s San Joaquin Valley is a place of contradictions: It is the most agriculturally productive region in the world, growing over 250 crops and grossing approximately $35 billion in annual sales of everything from fruit and nuts to livestock, wine, milk, and grains. Its 27,000 square miles reside in a geographical sweet spot, with a Mediterranean climate and land watered by once mighty rivers flowing from the Sierra Nevada mountains. The valley possesses incredible cultural diversity, too: People of more than 70 different ethnicities, speaking over 100 languages, call the …