Fuel Efficiency

Airstream is offering carbon offsets as well as pushing ahead with plans for an electric trailer that could make towing more feasible with an EV.

Even Big Oil now admits we're past the once-hypothetical point, and is pivoting for relevance in a new energy economy.

As automakers voiced support for a higher mpg standard, they suggested targets lower than those set during the Obama administration.

Five of the top 10 non-gasoline models with the steepest sales gains in 2019 and 2020 were diesels, according to an industry group.

Although EV sales increased 50%, a massive shift to less-efficient SUVs offset any carbon reduction.

A group of truckmakers has moved the timeline for retiring diesel truck production 10 years earlier.

The electric-truck invasion hasn't yet started. Is 25 mpg the leading edge of pickup truck efficiency?

GM readies to align itself with the Biden administration on emissions and gas mileage rules—and to cooperate with California rather than try to quash it.

By harnessing the wind, a new car-carrier design will have a smaller carbon footprint than combustion or battery-electric ships.

Americans anticipate they'll drive more after the pandemic than they did before it—adding urgency to the need for more EVs and clean vehicles.

A report reminds us that climate change is not a new idea for automakers—even if their electric-car plans are.

GM, Toyota, and FCA were served petitions this week from environmental and consumer groups aiming to stop their fight against tighter California emissions rules.

Amid this week's blackouts, California moved to ban diesel trucks in the future while relying on diesel generators to supplement the grid.

At least five automakers have negotiated deals with the California Air Resources Board to adhere to stricter emissions standards.

A rare investigation from the EPA's federal watchdog will be conducted over the administration's hasty rulemaking that contradicted its own earlier findings.

Biden would also propose new fuel economy standards that go beyond what was in place during the Obama administration.

The RAV4 Prime offers more electric range than the Ford Escape Plug-In Hybrid and Mitsubishi Outlander Plug-In Hybrid.

The latest report from the EIA anticipates that total world energy investment will drop by 20% in 2020, due to the coronavirus pandemic.

The new Sonata Hybrid costs more than the outgoing version, and more than its rivals.

The EPA might give automakers another big break on fuel economy and emissions—in addition to the one they just received in CAFE requirements.