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Army eyes waste-to-energy for base camps

Coal-plant CO2 captured, stored underground in US first

Romney plan: Oil. And more oil. And did we mention oil?

Car talk: Crash avoiding tech gets big test

EV super-battery could be graphene's latest trick

Artist creates temporary graffiti wall from water and LEDs

Battery-swapping Aussie EV sets 24-hour record: 1,170 miles

Renewable gasoline, diesel said to be near


These fish float in geodesic domes

This wave-powered seabot is a shark tracker