Obama to announce new car efficiency standards

US President Barack Obama will later this week unveil new fuel efficiency standards for passenger cars and light trucks for the 2017-2025 period, the White House said Wednesday.

Free apps drain smartphone energy on 'advertising modules'

(PhysOrg.com) -- Researchers have shown that popular free smartphone apps spend up to 75 percent of their energy tracking the user's geographical location, sending information about the user to advertisers and downloading ...

Germany most energy efficient nation

Germany is the world's most energy efficient nation with strong codes on buildings while China is quickly stepping up its own efforts, an environmental group said Thursday.

Airlines positioned for big gains in efficiency

Planes are being built out of the same lightweight materials used for Formula 1 race cars. Their engines are being redesigned to squeeze more thrust out of every gallon of fuel. And governments are developing air-traffic ...

page 3 from 14