Every problem facing humanity, from poverty to violent conflict over resources, is exacerbated by a ballooning human population – and so is every problem facing nature, including ecosystem loss, species extinctions, and climate chaos. But why is the demographic explosion and its effects ignored by policymakers and the media? Why do important people within the global environmental movement itself avoid the great challenges of the population issue?

Isn’t it time to start talking about the equation that matters most to the future of people and the planet? Overpopulation + Overdevelopment = Overshoot.

In a book as large and dramatic as the topic it covers, Overdevelopment, Overpopulation, Overshoot (OVER) will ignite that conversation around the world.

In an exhibit-format treatment with provocative photos from across the globe, OVER moves beyond insider debates and tired old arguments (yes, population numbers AND consumption both matter). Framed by essays from population experts Eileen Crist and William Ryerson, as well as a forward by human rights activist Musimbi Kanyoro, the heart of OVER is a series of photo essays illuminating the depth of the damage that human numbers and behavior have caused to the Earth—and which threatens humanity’s future.