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This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

Toyota engineer warns automous cars could increase fuel use, urban sprawl

An increasing number of people are starting to consider the potential downsides of a transition to autonomous cars. The FBI is already looking at them for the potential ill effects on law enforcement, and a scientist for Toyota is raising the possibility that driverless vehicles could actually be detrimental to the environment over the long term.
Ken Laberteaux, who studies future transportation for Toyota, thinks that autonomous cars could lead to more pollution, not less, says Bloomberg. However, Laberteaux's theory isn't so much based purely on science as it is considering behavioral and historical trends. "US history shows that anytime you make driving easier, there seems to be this inexhaustible desire to live further from things," said Laberteaux during a presentation at the Automated Vehicles Symposium in San Francisco, CA, cited by Bloomberg.
Laberteaux's belief is that if commuters can make their drives easier, then they will be more willing to live farther away from the cities where they work. The end result would be more urban sprawl and increased pollution from the longer travel times.

2018 Mitsubishi Eclipse Cross vs. small crossover SUVs: How they compare on paper

In the midst of the crossover SUV boom, each traditional size segment has become saturated. As a result, automakers are beginning to fill the gaps that separate classes, giving us some interesting in-between options. The all-new 2018 Mitsubishi Eclipse Cross jumps right into one of those in-between categories bookended by compact and subcompact crossovers. It's a niche that offers more space and feature content than the smallest vehicles, with an extra dose of style and a lower price than bigger ones. Because of the Eclipse Cross' in-between nature, though, there's not really an obvious direct competitor. As such, we've selected a diverse group of small crossovers that are similar to the Eclipse Cross in some but not all key areas: size, price, feature content, style and likely buyers. The 2018 Subaru Crosstrek, 2018 Toyota C-HR and 2018 Nissan Rogue Sport each have elements in common, but are different enough to provide useful points of comparison. A chart of specifications and key standard features is shown below, followed by more in-depth analysis. And if you wish to compare these crossovers with others not listed, be sure to check out our comparison tools. Engines and Drivetrains One of the Eclipse Cross' biggest advantages in this segment will be its engine. Subcompact crossovers, including the other three we've chosen, are sluggish to say the least. This new Mitsubishi should be different as it packs a turbocharged 1.5-liter four-cylinder that belts out a whopping 184 pound-feet of torque. We say whopping, because the C-HR, Crosstrek and Rogue Sport all have between 139 and 147 pound-feet. Horsepower is similarly unimpressive at just 152 horsepower - the same as the Crosstrek - but that torque should make passing and on-ramp runs much more satisfying. The appeal of crossovers for many people is the availability of all-wheel-drive, and this is where the Subaru gets an advantage. Like with all Subarus that aren't a BRZ, the Crosstrek has standard all-wheel drive. The Mitsubishi comes close, making all-wheel drive standard on every trim level except the very base ES trim level. On the Rogue Sport, all-wheel drive is an option on all trim levels. Depending on where you live, though, being able to have front drive on a high-trim crossover could be a plus because it will save some money and improve fuel economy. The C-HR loses this battle as it's only available with front-wheel drive.