Nike's battery-powered footwear system, which propels wearers forward, is part of a broader push to help humans move farther ...

Engineers have spent decades trying to make shoes lighter, springier and more supportive. Now they are adding something far more radical: propulsion. Bionic sneakers that quietly push wearers up hills ...

California clean-air officials have ended the statewide electric-bike program that was badly botched by a San Diego nonprofit and left thousands of applicants frustrated and angry. In a statement, the ...

Almost four years after state officials proudly announced a program to fight climate change by subsidizing electric bikes for thousands of Californians, the latest effort has badly fizzled, and the ...