In many developed countries, population decline poses economic and social strains and may even threaten national security. Through historical-political case stu

From the authors of the bestselling The Big Shift, a provocative argument that the global population will soon begin to decline, dramatically reshaping the soci

In 2011 the world's population exceeded 7 billion. Each year we add nearly 80 million people and by mid-century we will require twice as much food and double th

Before May 2011 the top demographics experts of the United Nations had suggested that world population would peak at 9.1 billion in 2100, and then fall to 8.5 b