University of Chicago Press

Environmentalists tend to tread carefully around the subject of population.

In a planet of finite resources and no place to throw things "away," overpopulation could devastate the Earth. 

Philip Cafaro has been talking for years about the intersection between environmentalism and population studies. 

In his latest book, "How Many Is Too Many?," Cafaro narrows the focus on immigration into the United States... and makes a rare progressive (not conservative) argument for reducing it. 

Hashtagging World Population Day

Jul 11, 2014

We welcome you to World Population Day! 

And you, and you, and you…  you get the idea here. 

Earth is home to an estimated 7.2 Billion people, and today (July 11) is the day several organizations want people to consider the impacts.