Soil conservation and regeneration is the headline benefit of this agroecological approach – and arguably one of the greatest needs of the planet. Grazing also enhances the microbiology of the soil thanks to the animals’ enzyme-rich saliva, and their tread turns the topsoil. Better soil drains more effectively and stores more water, depending on the season, with minimal human manipulation. And it leaves a better taste in your mouth knowing you're eating ingredients that hail from a positive-impact system which is better for people and planet. The Biggest Little Farm is a sweet documentary about a couple who leave LA to farm the land using traditional, eco-friendly methods (watch trailer).