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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.

Honda Accord barely edges Toyota Prius as California's best-selling car

The Toyota Prius definitely still matters, at least to car buyers in California. The long-lived hybrid was the state's second-bestselling vehicle in 2014 by moving 71,210 units across all of its variants, including the Prius C. The Toyota was the leader there in 2012 and 2013 but lost the sales crown this time – just barely – to the Honda Accord, which sold 71,578 examples. The results in the Golden State illustrate just how different the auto market there is compared to the rest of the country. Prius sales slumped last year nationwide with a drop of 11.5 percent to 207,372 examples sold. However, according to the LA Times, the model's numbers ticked up two percent in California in 2014. Taken by itself, the standard hatchback model would have been the sixth-bestseller there, with 39,036 units purchased. While the Toyota showed modest growth, it wasn't enough to fend off the Accord's 17 percent year-over-year jump in the state, though. According to the Los Angeles Times, the rest of the California top ten included the Honda Civic, Toyota Camry, Corolla, Ford F-Series, CR-V, Nissan Altima, Sentra and Chevrolet Silverado, respectively. That list was quite a departure from the nationwide bestsellers in 2014, which was led by the F-Series, Silverado and Ram pickups. The Camry was the country's foremost car on the list in fourth place overall to beat the Accord in fifth. The Prius didn't break into the ten biggest sellers in the US last year. Related Video: Featured Gallery 2014 Honda Accord V6 Touring: Review View 42 Photos News Source: LA TimesImage Credit: Copyright 2015 Drew Phillips / AOL Green Honda Toyota Car Buying Hatchback Hybrid Sedan sales California hybrid sales toyota prius c

Toyota FCV puts hydrogen fuel cell twist on ALS Ice Bucket Challenge

You've probably seen your fair share of Ice Bucket Challenge videos online this week, which are meant to raise money to fight amyotrophic lateral sclerosis (ALS), often called "Lou Gehrig's Disease." Hopefully, you've seen ours. We've watched a lot of these videos, but haven't seen one that makes an alt-fuel point quite like a new video from Toyota. Julie Hamp, the CCO of Toyota North America, lost a sister-in-law to ALS last year, so for her the cause is personal. Instead of just dumping icy-cold water on her head, Hamp uses water from the FCV fuel cell vehicle parked next to her. Because, of course, a hydrogen fuel cell car emits nothing but water vapor. Toyota didn't run a lot of hydrogen through the car to collect water, it just got enough to top off the ice bucket. Using the water emissions from a hydrogen vehicle in a creative way is not a new trick. Two years ago, the California Fuel Cell Partnership made the point that you can drink the emissions (just like Mercedes-Benz did earlier this year), but admitted that "fuel cells produce about the same amount of water as gasoline vehicle – about 1/3 cup for a full day of driving." Still, for a good cause, we'll accept the mix of tap water and "emissions." Check out the video below, if you haven't had enough already. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.