The collapse of a bridge along I-5 in Washington has revived the debate over whether Congress should spend more to repair the nation's aging roads and bridges.
The idea of fueling cars and trucks with cheap natural gas rather than oil has a powerful allure. But for lots of reasons, Americans have been slow to switch.
Here's what this interesting new study teaches us about carbon taxes and climate change.
On Wednesday, House lawmakers held a fractious hearing over federal loans that had been made to struggling electric-car manufacturer Fisker Automotive.
Under a "revolutionary" new financing scheme, Tesla claims its Model S electric cars can be had for just $500 a month. The actual price, though, is likely twice as much.
Is there a Moore's Law for batteries? Do we need big breakthroughs in chemistry? Or will small incremental improvements do the trick?
Self-driving cars are expected to transform the way we get around. So what will that mean for energy and oil use in the years ahead? Some wild speculation.
A new report from the National Academy of Sciences shows how it can be done, but no single technology or policy will get us there.
A new report gives U.S. infrastructure a D+. But things might not be quite as bleak as they sound.
The American Society for Civil Engineers has another dismal report card for U.S. infrastructure. The report is good at pointing out deficiencies, but not so good on policy.
Americans are buying fewer trucks, cars are getting lighter, and new fuel-injection technologies are catching on.
Some 69 percent of American adult drivers admit to talking on their cell phones while behind the wheel, a much greater percentage than in other countries.
The based company had a much-hyped idea for electric vehicles — battery-swapping. But to date, the company has only sold 750 cars in Israel and is losing $500 million. What happened?
The average commuter in the United States travels about 25 miles each way to work. But that's an average. And as a new Census report details, the average can obscure a lot of variation.
Amtrak really has two systems in one. Its shorter routes are successful. Its longer ones have few passengers and lose $600 million a year. Here's how to deal with the latter.
Cities plagued by snarling traffic and congestion have frequently turned to light-rail systems for help. It may not work — at least, not at first.
Virginia is replacing its gas tax with a sales tax on things like gasoline and diesel fuel. But there's a problem—the new tax is likely to be far more volatile.
Gas taxes are "at least six to fourteen times" more cost-effective than fuel-economy standards at reducing gasoline consumption. Congress doesn't seem to care.
As the New York Times and Tesla Motors trade bitter accusations over a test drive of the Model S, a look at what the future of electric cars might hold.
The good news: cars are getting more fuel-efficient. The bad news: gas prices are rising so quickly that Americans are now spending a bigger share of their income on gas than at any time since the early 1980s.