Hydrogen will supplant fossil fuels in the near future. Automakers such as DaimlerChrysler and Toyota are developing fuel-cell-powered cars that convert hydrogen and oxygen into electricity, with plans to put them on roads by 2010. (World Trends & Forecasts, Environment)

Citizens may become the new security forces. After the September 11 attacks, governments could help train citizens in self-defense techniques and emergency management to combat terrorism and promote civic responsibility, suggests sociologist Severyn Bruyn. ("The New Age of Terrorism: Futurists Respond")

Terrorist activity will increase over the next decade, though state-sponsored terrorism will decline. Economic and technological progress are widening the rich-poor gap between developed and developing nations, increasing hostility against the West. (Marvin J. Cetron and Owen Davies, "Vital Signs for National Stability: Staying Secure in an Insecure World")

More people will live longer and prosper: Reducing the death rate from either heart disease or cancer by 20% would be worth $10 trillion to the American economy, thanks to reduced medical costs and insurance payouts, not to mention more years of productivity. (Ronald M. Klatz, M.D., "The Benefits of Immortality")