The document discusses global population trends from 1960 to 2050. In 1960, there were 30 billion people in the world with 10 billion living in developing countries. By 2010, the global population grew to 70 billion with developing countries and the industrialized West each accounting for around 10 billion people. By 2050, population growth is projected to stop as developing countries become emerging economies focused on education and child survival rather than population growth. With investment in green technology and global cooperation, the world population could stabilize at around 9 billion people.