Julia Carabias, a biologist and ecologist, is one of the country’s foremost authorities on environmental conservation policies. Environmental Secretary from 1994 to 2000, Carabias lectures at UNAM and is the director of Natura Mexicana, an NGO that carries out conservation programmes in the Lacandona Jungle and surrounding areas. He will talk to Diego Rabasa about his work as an ecologist and the environmental challenges facing Mexico.