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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.

NHTSA investigating 200,000 Sentra, Versa models over brakes

The National Highway Traffic Safety Administration has opened a second investigation into Nissan in May. The first covered inaccurate fuel gauges in the 2007 Quest minivan. The latest affects the Sentra and Versa from the 2013 and 2014 model years and the 2014 Versa Note, because of complaints of long brake pedal travel. If NHTSA finds a problem, it could affect an estimated 200,000 vehicles.
At the moment, this is still only a preliminary evaluation "to asses the scope, frequency and safety-related consequences of the alleged defect," according to the report, but it could lead to the full recall. NHTSA is still trying to find whether or not there are accidents, injuries or fatalities related to the problem. At this time, much of the data in the document is still marked Confidential or TBD. Nissan told Reuters in a statement that the company is working with the agency on the investigation and supplying the regulator with further information.
According to NHTSA, its Office of Defects Investigation has received eight complaints about long pedal travel in these models. They allege that the brake pedal goes all the way to the floor when pressed in some cases and doesn't sufficiently slow the vehicle. Autoblog has contacted Nissan for its reaction to the investigation. We will update this story when we receive a reply. Until then, scroll down to read the current investigation report.

Nissan Leaf's lead over Renault Zoe narrows in Europe

The Nissan Leaf has seen its sales steadily decline in the US for a while now. Here, its been eclipsed by the second-generation Chevrolet Volt extended-range plug-in while people await the next-generation version of the all-electric Leaf. The EV may be starting to receive a similar response across the Pond. While the Leaf remains Europe's biggest-selling EV, that lead is eroding, as sales of the Renault Zoe are catching up, according to the European Alternative Fuels Observatory (EAFO). It's a good thing Nissan and Renault are sister companies. Through May, Nissan sold about 9,500 Leaf vehicles in Europe. The good news is that number is up 37 percent from a year earlier. There's disconcerting news, too, and that is that the Renault Zoe's sales have surged 60 percent this year to almost 9,400 units. So, for all we know, the Zoe may have caught up with the Leaf last month. Still, both models are outpacing demand for the Tesla Model S and Volkswagen e-Golf: the former's sales are little-changed this year, while the latter model's sales have dropped 34 percent. The BMW i3, Kia Soul EV, and Mercedes-Benz B250e all have had higher sales this year. As for plug-in hybrids, the Mitsubishi Outlander PHEV has maintained its substantial European lead, almost doubling sales of the Volkswagen Golf GTE and totaling almost 9,400 units sold through May. Meanwhile, the new Volvo XC90 PHEV has leapfrogged models such as the Volkswagen Passat GTE, Mercedes-Benz C350e, and Audi A3 e-Tron into third place behind the Mitsubishi and VW. Here in the US, Nissan Leaf sales through June fell 41 percent from a year earlier to about 5,800 units, while Chevrolet Volt sales have surged 75 percent to 9,808 units. Featured Gallery 2016 Nissan Leaf View 30 Photos News Source: EAFO, Getty via Green Car Reports Green Nissan Renault Electric ev sales zoe