Barbie never said "Math is hard!" The talking doll did, notoriously, say "Math class is tough!" in 1989, sparking a media firestorm over gender roles in childrens' toys and then a voluntary recall by Mattel for offended parents. Reworded, however, the point remains accurate: many people don't understand math. DON'T MISS: Costs to meet fuel-economy... Extra fuel used if 2022-2025 CAFE rules delayed would be low: here’s the math
Barbie never said "Math is hard!" The talking doll did, notoriously, say "Math class is tough!" in 1989, sparking a media firestorm over gender roles in childrens' toys and then a voluntary recall by Mattel for offended parents. Reworded, however, the point remains accurate: many people don't understand math. DON'T MISS: Costs to meet fuel-economy... 
It has become increasingly more evident that carmakers must take aggressive steps to ensure that diesel cars and light trucks meet current environmental regulations. Tests done by Emissions Analytics found that the majority of new diesel-powered cars sold in Europe do not meet the Euro 6 emission standards for nitrogen oxides (NOx) in real-world... 
Advocates have long suggested that electric vehicles will begin to take over daily driving duties, slowly but surely, from the internal-combustion engine. Now, even oil companies are starting to acknowledge that there may be reality in that dream of the future. France's Total SA, one of the world's largest oil producers, released its future... 
The current EPA administrator, Scott Pruitt, does not accept the scientific consensus on human contribution to climate change, though he has given some contradictory statements on that matter. His views correspond closely to those of his boss, President Donald Trump, who notoriously compared the science to bovine excrement in a tweet and called... 
Economists call them "externalities." They're the costs of people's actions on other people or communities—though the people taking those actions don't have to pay for those costs, even as they harm others. The emissions from combusting fossil fuels to propel vehicles are clearly a prime example. DON'T MISS: A Brief History Of Smog, Which... ![Donald J. Trump in November 2016 [photo: The Trump Organization]](http://images.hgmsites.net/tmb/donald-j-trump-in-november-2016-photo-the-trump-organization_100590012_t.gif)
As the Trump Administration nears its 100th day, it seems fair to say that it is still emitting mixed messages on multiple issues, from foreign policy to climate change. On that latter, it's important to reiterate that the president and many of his appointed agency and department heads deny the science of climate change. On the campaign trail, the... 
The challenges of building fueling infrastructure for passenger cars powered by hydrogen fuel cells are well known by now. Toyota, Honda, and Hyundai now lease low volumes of fuel-cell vehicles in selected areas of California where a few dozen hydrogen fueling stations are now up and running. The challenges for fueling may be less daunting for... 
If you're a diehard diesel fan, you now have one last chance to buy a brand-new Volkswagen TDI diesel car. Well, almost brand-new, anyhow: the cars in question are 2015 models, and about 11,000 of them will go on sale after they have been modified. Once they're sold, there will likely be no more new Volkswagen diesels sold in the... 
Despite efforts by Chevrolet to step into the void left by Volkswagen, sales of diesel passenger vehicles in the U.S. may have been permanently crippled by the VW diesel emission scandal. In Europe, however, diesel has been entrenched for decades as roughly 50 percent of the market. Even before the scandal, it wasn't expected to rise much beyond... 
Seattle-based startup Zunum Aero has received funding from Boeing HorizonX and JetBlue Technology Ventures toward making its dream of electrified air travel a reality. Sometimes billed as the Tesla of the airplane industry, Zunum is developing a relatively small regional aircraft with about 700 miles of range. A 1,000-mile range will be attainable...