Christopher Tucker
Chair, American Geographical SocietyChristopher Tucker is Chair of the American Geographical Society, founder of MapStory, a crowdsourced map of geographical change, and author of A Planet of 3 Billion.
Recent contributions
Has Earth’s human population surpassed the planet’s carrying capacity?
Mapping the devastation wrought by lesser-known pollutants reveals the elephant in the room of climate change discourse, and raises an awkward but urgent question – has Earth’s human population surpassed the planet’s carrying capacity?