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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.

Renault ousts CEO days after Nissan gets a new one

Newly-appointed interim CEO Clotilde Delbos and Chairman of Renault SA Jean-Dominique Senard. / Reuters   PARIS — Renault ousted chief executive Thierry Bollore on Friday, as the French carmaker and its Japanese partner Nissan seek to rekindle their alliance following the scandal-hit tenure of former alliance supremo Carlos Ghosn. Tensions between Renault and Nissan, which picked a new CEO on Tuesday, have been high since Ghosn's arrest in Tokyo last year on allegations of financial misconduct, which he denies. Bollore, who was close to Ghosn and had strained relations with Nissan's previous boss, will be replaced on an interim basis by Renault finance director Clotilde Delbos. With new faces at the helm, Renault chairman Jean-Dominique Senard is hoping to draw a line under almost a year of turmoil and revive cooperation between two carmakers once seen as destined to fully merge. That is vital at a time when auto markets are slowing and carmakers are having to invest in costly new technologies as well as meet challenging European emissions regulations. "We're at a new stage now for this alliance. Sometimes you need new management ... to breathe new life into things," Senard, who was brought in earlier this year from tyre maker Michelin, told a news conference in Paris. He said three members of Renault's 18-strong board abstained in the vote to remove Bollore, who hit out at his looming dismissal in a newspaper interview the night before, calling it a coup. Following Ghosn's arrest, a feeling of stagnation around joint Renault-Nissan projects, including on issues such as advancing on cost savings, had begun to set in, people at Renault have said. These would now be the first priority, according to a source close to the carmaker. "There are a lot of concrete matters that have already been identified, including on the industrial front: working on batteries, electric vehicles, connectivity, purchasing and self-driving cars," the source said. Shares in Renault closed up 5.1%. 'Coup de force' Tensions between Renault and Nissan were further inflamed this year, including during various spats over governance reforms, and after a failed deal to pair Renault up with Fiat Chrysler, which withdrew a merger offer. Senard reiterated on Friday that a tie-up with Fiat, which was abandoned in June, was not at present on the agenda.

You'll soon be able to buy an EV in China for just $8,000 after incentives

Renault is eventually looking to sell an electric vehicle in China that will cost as little as $8,000 after government incentives kick in. According to Reuters, Renault-Nissan chief Carlos Ghosn offered the prediction at the New York Times Energy for Tomorrow conference in Paris this week. Granted, China government incentives are approaching $20,000 per vehicle, as China looks to address its cities' notorious pollution problem, so there's some wiggle room with that price. And of course, the devil is in the details, and Ghosn didn't provide any. Still, such a low-priced EV would likely challenge the dominance of China-based EV makers BYD and Kandi. And the effort would likely be lucrative, given that it has been predicted that China will become the world's largest EV market by the end of the decade. In fact, the publication EV Sales said earlier this year that as many as 300,000 EVs will be sold in China in 2016 (by comparison, Americans bought about 100,000 EVs and plug-in hybrids combined through the first 10 months of the year). BYD is expected to sell 75,000 Tang SUV units this year. With such growth expectations in mind, automakers are focusing on China for potential EV development. Earlier this year, Volkswagen Group said it signed a memorandum of understanding with China's Jianghuai Automobile (JAC) for plug-in vehicle production. Mercedes-Benz parent Daimler also stated its goal to broaden plug-in vehicle sales in China. Renault appears to be trying to make an early mark in China. Dongfeng Renault Automobile Co., the Chinese joint venture between Renault and Donfeng, is looking to start testing a self-driving electric vehicle this month. Dongfeng Renault will use a 1.5-mile stretch of road in Beijing's Caidian district for testing purposes. Related Video: