"El Carmen Nature Reserve is a very good example of a success of conservation, with the interaction of several actors from the private sector and government agencies from both sides of the border."In this episode Ben Goldsmith is joined by Alejandro Espinosa Treviño who - on behalf of Cemex - is overseeing restoration of a great swathe of grassland, forest and mountain on Mexico’s northern border with the US.Alejandro and his team have recently reintroduced bison to the El Carmen Nature Reser...