You don't seem to buy MPG ratings anymore; we'll look into how they are done. We also drive the 2013 Audi S7, find out what happened to the hidden headlight, and list the Top 5 reasons for self-driving cars.
Apple's hired Lisa Jackson, the former administrator of the Environmental Protection Agency, to oversee its environmental efforts.
The 2016 XC90's plug-in hybrid drivetrain will offer a huge amount of power, and excellent fuel economy.
A lot of people are skeptical of EPA mileage ratings these days. Here's a quick primer on what's behind them.
Got a shattered CFL on your hands? Worried about mercury? Don't panic -- we'll show you how to clean it up safely and dispose of it responsibly.
A look inside the EPA's mileage ratings, we check the tech in the 2013 Audi S7 and lay out the Top 5 reasons for self-driving cars.
By reducing energy use in its hybrid cars' power control units, Toyota claims it can increase fuel economy by 10 percent.
During a presentation of its five-year product plan, a Chrysler spokesman said the company would focus on mild hybrid drivetrains in its vehicles.
A report by Bloomberg New Energy Finance charts reductions in gasoline use, and estimates future reductions due to CAFE and ZEV rules.
Microsoft's free Joulemeter utility gives you a rough estimate of a Windows system's power consumption. Plus: tips for reducing your electronics energy bill.