Environment: Forecast: Famine?

Central Intelligence Agency "spooks" and analysts spend much of their time trying to learn about armaments in Africa, intrigues in Asia and other possible threats to U.S. security. But now the agency is concerning itself with another potential danger: a changing climate. In a report released last week, the CIA concluded the earth has entered a period of adverse weather that is already reducing food production and causing major economic problems throughout the world. The report warns that a changing climate could cause serious upheavals as famine-stricken nations seek—if necessary at the expense...