As global population reaches 7 billion, Jeffrey Sachs says we must adopt sustainable technologies, achieve stable population. Just 12 years after the arrival of the 6 billionth individual on the planet in 1999, humanity will greet the 7 billionth arrival this month. The world population continues its rapid ascent, with roughly 75 million more births than deaths each year. The consequences of a world crowded with 7 billion people are enormous. And unless the world population stabilizes during the 21st century, the consequences for humanity could be grim. A rising population puts enormous pressures on a planet already plunging into...
