The Transportation Department, which holds sway over planes, trains and automobiles, faces limits on how it spends money. Still, here are five possible steps.
A scandal led to a $2.9 billion trust fund for states to put cleaner vehicles on their roads. A lot of the money has gone to more diesel vehicles.

Electric transportation technology is spreading beyond cars to heavy equipment, airplanes, helicopters, and now, boats. The Danish ferry boat Ellen, which made its maiden voyage earlier this month between the Danish islands of Aero and Als, claims to be the world’s largest all-electric ferry. While electric technology is still a challenge...

As countries from India to Ethiopia plant millions of trees to combat global warming, one German company has a much smaller idea. Berlin-based Green City Solutions plans to clean the air of local emissions from gasoline and diesel engines, by planting millions of tiny mossy trees in cities. Moss works similarly to trees in filtering pollutants out...

EPA Office of Air and Radiation Administrator Bill Wehrum, an attorney who formerly represented power companies in their effort to roll back clean-air regulations, has resigned. The biggest air-quality issues that the Office of Air and Radiation oversees are tailpipe emissions from cars, and emissions from power plants that increasingly provide...

Americans driving more miles could cancel out emissions progress. Airbus looks to build hybrid airplanes. China puts restrictions on who can build electric cars in the world's largest EV market. And Jaguar plans to launch its new flagship XJ sedan as an electric. All this and more on Green Car Reports. Jaguar Land Rover plans to introduce its...

New York City's efforts a decade ago to clean up pollution from old taxi models has worked—mostly—a new study shows. The study, by researchers at the Columbia University Mailman School of Public Health (in New York) and Drexel University, and published in the Journal of Exposure Science & Environmental Epidemiology, shows that the...

Today, the EPA acted on a proposed change to expand the amount of ethanol that can be mixed into pump gasoline from June 1 to September 1. In an official announcement, the agency made no comment about how the move might affect summer air quality or pollution issues. The EPA said that it “delivers on President Trump’s promise,”...

The EPA is following through on plans to reduce the number of deaths it counts as attributable to air pollution, reportedly in an effort to support the Trump Administration's plans to shore up the coal industry. The plans were first discussed at a meeting of a key EPA air-quality standards board in the end of March. Now a report in the New York...

As virtuous as one might be in choosing a vehicle that doesn’t produce tailpipe emissions, there’s a hazy reality to traveling by car: That you’re stuck breathing emissions from other gasoline or diesel vehicles—especially fine particulate emissions, which are some of the most concerning for health and tend to linger within...