Ah, alternative fuels. Aren't they the best? It all started with a hybrid car, which led to plug-in hybrid electric vehicles (PHEVs), and now battery-electric vehicles (BEVs) are dominating the scene.

The 10-bus pilot is part of the agency's efforts to transition to a climate-friendly fleet. But it has attracted criticism from some environmentalists. Employees with SEPTA and other transit agencies ...

UNSW researchers have developed a novel hydrogen fuel cell design that improves water management. We take a closer look.

Early last September, the U.S. Federal Aviation Administration (FAA) made its first move to allow unmanned commercial aircraft—drones—to fly beyond the sight of their operators. The agency will begin ...