In Tepejillo, on one of the many hills in the southern Mexican municipality of San Juan Bautista Coixtlahuaca, extreme erosion has transformed the earth into bare rock, making it difficult to imagine that the area used to be home to a forest or, even more incredibly, a civilization.
The recent report from the Intergovernmental Panel on Climate Change shows that agriculture is responsible for 37% of greenhouse gas emissions. There’s hope—and a solution.