A new iron age?

A new iron age?

Smelters refine aluminum ore, but not iron ore, with electricity. A new electrolytic process for refining iron ore could save vast More »

Hurricanes

Hurricanes

Synopsis: Hurricanes, the most powerful and dangerous storms of all, get their energy from the difference in temperature between a warm

Greenhouse gas maps

Greenhouse gas maps

Using at least 20 sources of data, scientists have modeled releases of carbon dioxide from Indianapolis. The new view will help cities More »

Wave power

Wave power

The first ocean wave energy-capturing device with a permit to connect back to a public power grid will enter the Pacific next month. More »

Fracking

Fracking

Classroom Activity Page: Hydraulic fracturing, or fracking, is a high-pressure technique for cracking rocks and More »

Nuclear nightmare in Japan

Nuclear nightmare in Japan

With three nuclear reactors and three pools of spent fuel teetering on the edge of meltdown, Japanese technicians struggled to throttle More »

Biofuel advance

Biofuel advance
Ethanol in gasoline now comes mainly from corn, a food crop. Cellulose, found in crop wastes, wood and switchgrass, could be a great More »

Future grid, smart grid

Brick building side showing 12 stories of windows, each with an air conditioner
We need more electricity. More alternative energy. Less greenhouse warming, and better ways to manage our power supply. Can the More »

Tar sands = Clean oil?

Tar sands = Clean oil?

Canada’s oil-drenched sands are the second-largest oil reserves, but they pollute air and water, destroy forests and boost warming. A More »