The "P" Word (discussing Population Control)

Last week, in the course of a conversation about the future of food, the "P" word came up...Population.

Here is a link to The Worldwatch Institute, a highly respected organization whose mission is:   
 
"Worldwatch Institute delivers the insights and ideas that empower decision makers to create an environmentally sustainable society that meets human needs. Worldwatch focuses on the 21st-century challenges of climate change, resource degradation, population growth, and poverty by developing and disseminating solid data and innovative strategies for achieving a sustainable society."