Apple's hired Lisa Jackson, the former administrator of the Environmental Protection Agency, to oversee its environmental efforts.
A lot of people are skeptical of EPA mileage ratings these days. Here's a quick primer on what's behind them.
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.
Honda announced the EPA fuel economy and range numbers for its Fit EV today, the rating of 118 MPG equivalent making it the most fuel-efficient production car available.
In a blog post today, Tesla revealed that that under the EPA's new five-cycle testing procedure, the top-end Model S achieved a range of 265 miles.
Final regulations on cutting air pollutants such as mercury and soot at heavy industrial boilers are more flexible than the proposed regulation.
The Toyobaru twins get reasonable EPA fuel economy estimates, but we expected better results from their novel D-4S powered boxer engine.
Judge rules that state's landmark low-carbon fuel rules discriminate against out-of-state ethanol providers because they consider impact of transporting fuel to California.
Republicans in the House and Senate are seeking to permanently block the EPA from regulating greenhouse gases. The Obama administration has said it would veto such a bill.
The U.S. Environmental Protection Agency announced final approval of HFO-1234yf, a new, "greener" air conditioning refrigerant for vehicles.