Guardian: For alpaca farmer Ignacio Beneto Huamani and his young family, life in the Peruvian Andes, at almost 4,700m above sea level, has always been a struggle against the elements. His village of Pichccahuasi, in Peru’s Huancavelica region, is little more than a collection of small thatched shelters and herds of alpaca surrounded by beautiful, yet bleakly inhospitable, mountain terrain. The few hundred people who live here are hardened to poverty and months of sub-zero temperatures during …