Richard Fenton travels to the tip of earth to meet a pioneering family of farmers . Brian Byrnes employs ` `` Hello , Brian , how are you . Continuing grazing on same land causes desertification of fragile grasslands . Fentons is part of a network which promotes sustainable methods to other farmers in South America .
Brian Byrnes travels to the tip of South America to meet a pioneering family of farmers . Richard Fenton employs `` holistic herding '' of sheep to improve yield for business and land . Continuing grazing on same land causes desertification of fragile grasslands . Fenton is part of a network which promotes sustainable methods to other farmers in South America .