Six years ago, scientists predicted that a third of the world would face water shortages by 2025. But it's already happened. Cholera may return to London. African migration could cause civil unrest in Europe. China’s economy could crash by 2015. That's the "bleak assessment" of 200 food, oil, chemical and water companies. Can technology overcome mismanagement and global warming? Will shortages lead to greater cooperation or major conflicts--even in the US? Plus, the FDA approves over-the-counter sales of the "morning-after" contraceptive pill, and the planet Pluto becomes a "dwarf."