FOCUS: Peak Oil

Martin Leatherman,
Are the days of cheap oil over? With prices soaring above $50 a barrel, the world is beginning to take the peak oil theory seriously. The Hubbert Peak Theory, developed in 1956 by geophysicist M. King Hubbert, is casually called the peak oil theory. It says oil and fossil-fuel production will soon reach a peak and then rapidly decline, driving prices up. In 1956 Hubbert predicted that production would peak in the United States in the late 1970s, which it did.

SIDEBAR: Breast Cancer Risk Factors

• Part One: Cause & Controversy
• Part Two: A Plague of Neglect
• Sidebars: Risk Factors; Toxic Links; Long Island
• Printable: Download the magazine-style PDF

What causes breast cancer? Who’s at risk, and why? These seem like simple questions. But the answers remain vexingly elusive. Talk to any credible researcher and you’ll come up with a list of risk factors that can be counted on one hand — indicating not only the extent of our knowledge, but also our lack of it.