Researchers have invented a phone-booth-size device that can take back those emissions we can’t prevent—the ones that have already reached the atmosphere.

Greater exploration, conservation and improved energy alternatives will all help to ensure that the oil spigot doesn’t suddenly go dry. (Published in the April 2008 issue)

Cloud seeding has lost its mad-scientist overtones recently as the U.S. is plagued by drought and scientists predict that water shortages will worsen with global warming. For many regions, engineering the weather is now viewed as an absolute necessity. (Published in the April 2008 issue)

A new study concludes that hybrid electric car miles take three times the water consumption of gasoline miles. That could pose problems for water-stressed regions, making power plants more vulnerable to shut down during times of drought.

Reactor switch problems cut power across an entire state, but the big picture for nuclear power is safe, cheap and efficient. "New reactor designs," one top energy CEO says, "are like car engines: They’ve become more cost effective and require less maintenance."