Guillem Tendero Acin is an environmentalologist and Master in Environmental Studies from the UAB. Since 2001 he promotes Agroecology and Food Sovereignty by conducting research, training, dissemination and dynamization. He has published various articles and books; he is part of the coordinating team of the Postgrau in Dinamitzacio Local Agroecologica (UAB); and currently works as a consultant in the Arran de terra association.