Fuel Efficiency

The Sportage Hybrid has recently been rated at up to 43 mpg—beating the most efficient versions of all its hybrid rivals without a charge port.

Well-timed signals can have a significant impact on emissions—equivalent to the CO2 absorbed by a forest 3.3 times the size of Atlanta, according to Inrix.

The mpg standards are a step steeper than an original proposal. Arriving at an effective 49 mpg, they boost fleet efficiency by 8% to 10% annually for model years 2023-2026.

Texas and 15 other states, along with ethanol groups, have challenged the EPA's emissions rules under the Biden administration

It's been a long time coming. Enforcement had been delayed after automaker lobbying, triggering a lawsuit from California.

Producers argue that the new rules exceed the EPA's authority because they effectively force automakers to produce electric cars

Environmental groups claim the EPA's proposed standards should do more to encourage deployment of electric trucks.

Here are the widely available cars only fueled by gasoline that achieve 50 mpg combined or more based on EPA ratings. They all start under $30,000.

It stopped buying state vehicles from GM in 2019, when the automaker sided with the Trump administration in a challenge to the state's right to set its own emissions rules.

So much of the responsibility for CO2 reductions is falling on the auto industry. Should more of it rest on the oil industry?

The first version of the Hummer EV "electric supertruck" is too portly for EPA range and efficiency ratings. But GM is releasing them anyway.

Even as the Biden administration prepares for tighter fleet fuel economy standards, automakers' bank of credits could stifle innovation and lower the actual mpg average.

Given typical driving patterns, there isn't a single gasoline vehicle you can buy today that, on a national basis, promises to be cleaner than an all-electric one.

All the miles ride-hailing cars travel with only the driver amounts to more overall pollution, congestion, crashes, and noise, a study concludes.

The no-frills, high-mpg, three-wheeled car that's been anticipated for a decade still hasn't arrived, but now the company's decided an electric version comes first.

EV sales will rise from 3 million in 2020 to 66 million in 2040, Bloomberg projects—and it appears that ICE sales peaked in 2018.

Dementia is the latest health issue potentially tied to the fine particulate emissions produced by vehicle tailpipes.

Ford, GM, and Stellantis expressed a “shared aspiration” to achieve 40% EVs by 2030, with a framework yet to be worked out in detail.

A number of environmental groups called for higher targets and fewer loopholes in Biden gas mileage rules expected in the next week.

The 2022 Tucson Hybrid drives better than its gas counterpart and offers great value. But the big question is, how efficient is it? We took it on a pair of drives, one highway focused and one through the city, to find out.