A smorgasbord of bright red tomatoes and vibrant vegetables line the walls of Michael Katrutsa’s produce shop in rural Camden, Tennessee. What began a decade ago as a roadside farm stand is now an air-conditioned outbuilding packed with crates of watermelon, cantaloupe and his locally renowned sweet corn — all picked fresh by a handful … Continue reading As climate threats to agriculture mount, could the Mississippi River delta be the next California?