October 31, 2011, marked an uneasy milestone for Planet Earth. On this day, the global population surpassed seven billion. What does that mean for a world that,

October 31, 2011, marked an uneasy milestone for Planet Earth. On this day, the global population surpassed seven billion. What does that mean for a world that,

A provocative description of the power of population change to create the conditions for societal transformation. As the world nears 8 billion people, the count

Thanks to modern medicine, people are living longer. But can our planet support such a large population? Experts weigh in on the subject, introducing readers to

Fascinating facts about the 7 billion people that inhabit our planet. What would the world look like if the 7 billion people on this planet were presented as 10