But getting his stubborn fellow farmers to make the switch too was a challenge . 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 .
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 .