EPA wants to roll back Obama-era auto efficiency guidelines
It’s developing new rules that are less stringent than current standards.
Mazda's engine breakthrough promises big fuel efficiency gains
Mazda says it's nailed the compression-ignition gasoline engine.
The US' TV energy ratings don't reflect the real world
Advocacy group research shows that even new TVs use more power than ratings say they do.
Elon Musk's SolarCity has the world's most efficient solar panels
Elon Musk's other green company will build enough panels for 200,000 homes per year.
3D printing shows why sharks are so deadly efficient
A shark's fearsome teeth don't end in its mouth, as its skin is also made up of millions of sharp,...
Chevy Spark EV rated most efficient retail car with 82-mile range, 119 MPGe
All EVs have their own particular merits: some climb, some race, some only have three wheels, and...
Facebook launches real-time graphs to highlight its data center efficiency
Curious as to the effect that your poking wars are having on the planet? Facebook is outing power...
Breakfast Topic: Efficiency
In a post yesterday about the easiness of low level dungeons, wiserwaylander commented on an in...
Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency
Eking out more power from solar cells is an ongoing challenge for scientists, and now architect An...