We are in a historical transition between a world inherited and one that is profoundly different a global biosphere whose vital functions we have altered. Burgeoning human numbers have placed unprecedented demands on farmland, forests, and other resources, changing the continents green skins of vegetation, as well as the interactions between atmosphere, land, oceans, and living organisms that sustain life on earth. This map shows these interactions and pinpoints growing threats. A wonderful resource for learning more about the delicate balance between development and natural regeneration of the planet.