At least in North America, ethanol is a contentious fuel. A decade ago, it was seen as a homegrown and carbon-neutral way to use less gasoline—and federal legislation mandated that increasing volumes be blended into U.S. fuel supplies. Much debate followed over using "food for fuel," its supposed carbon neutrality and the footprint of the... Fuel from emissions? Catalyst converts carbon dioxide to ethanol
At least in North America, ethanol is a contentious fuel. A decade ago, it was seen as a homegrown and carbon-neutral way to use less gasoline—and federal legislation mandated that increasing volumes be blended into U.S. fuel supplies. Much debate followed over using "food for fuel," its supposed carbon neutrality and the footprint of the... 
The smallest U.S. state now faces a big question on energy policy. Rhode Island is in the midst of deciding whether to continue getting a large portion of energy from fossil fuels, or to switch to renewable energy. Those options are represented by two competing projects: a large natural-gas power plant, and an offshore wind farm. DON'T MISS: Dirty... 
The announcement of the Chevrolet Bolt concept car came like a thunderclap at the 2015 Detroit Auto Show. After unveiling the 2016 Chevy Volt plug-in hybrid, General Motors CEO Mary Barra rolled out a bright orange five-door hatchback electric car. It would have 200 or more miles of range, she said, for a price starting at $37,500 before... 
Nano Flowcell Holdings hasn't been shy about promoting its flow-cell battery technology. It's displayed flashy concept cars at multiple auto shows, offering bold performance claims for what it said were near production-ready designs. But the company doesn't seem to have given outsiders any significant time behind the wheel of any of its prototype... 
Stricter global emissions standards are putting significant pressure on carmakers to improve fuel efficiency and make greater use of electric powertrains. But that may not be the sole force driving automakers toward reduced carbon emissions. Cutting emissions is also a priority for at least some of their investors, it seems. DON'T MISS: India, EU... 
We've known for sometime that Audi will launch an all-electric utility vehicle in 2018, but there has been some confusion about what it will be called. It was widely believed that the SUV would carry the Q6 e-tron name, stemming from both its position in the Audi lineup and its use of an electrified powertrain. But now it appears the electric SUV... 
A convertible version of the BMW i8 plug-in hybrid coupe was teased as far back as the 2012 New York Auto Show, when the i8 Spyder concept first debuted. But while the i8 coupe went into production as a 2014 model, BMW has been unusually slow to approve a convertible version for production. BMW mentioned an i8 convertible during a March press... 
Suppose you're one of the world's three largest automakers. You don't offer a type of vehicle that a relatively small but highly visible customer in your home market wants. Do you have the right to be annoyed if that customer designs those vehicles itself? DON'T MISS: USPS picks AM General to help build next-generation mail trucks Only... 
The next generation Mini Countryman crossover utility vehicle will be the brand's first model to offer a plug-in hybrid powertrain. Its parent company BMW has released teaser images confirming an upcoming production plug-in hybrid. While it did not specifically say the model was a Countryman, the camouflaged prototype being driven by Mini... 
Last December, representatives form 195 countries met in Paris to negotiate an agreement to address climate change on a global scale. Almost a year later, enough countries have now formally ratified that agreement in order that it can officially take effect. The tipping point was reached when India and the 28 members of the European Union ratified... 
The Renault Zoe once again maintained its position as the best-selling electric car in Europe, at least through August. As has been the case all year, the subcompact hatchback's main competition for that title was the Nissan Leaf—built by Renault's Japanese alliance partner—which once again earned the second-place spot. The Leaf... 
The U.S. Department of Energy (DOE) loan program that became a lightning rod during the 2012 presidential election is now turning a profit. The program became infamous for backing solar company Solyndra, which later went bankrupt. Three years after Soyndra's failure, though, the program is now in the black. DON'T MISS: Carbon emissions from U.S... 
How much would you pay to own one of the earliest Tesla Roadster electric sports cars? Early production models and prototypes of notable cars can often become valuable collectors' items. That's something the seller of this prototype Tesla Roadster seems to be counting on. DON'T MISS: Tesla Roadster 3.0 340-mile battery upgrade now shipping The... 
Which U.S. carmaker is moving to capitalize on Volkswagen's diesel woes in the U.S. market? What did Tesla Motors CEO Elon Musk challenge us to do? (And when we did it, what did we conclude?) This is our look back at the Week In Reverse—right here at Green Car Reports—for the week ending on Friday, October 14, 2016. At the end of the... 
Today, we have the first photo of the Atieva Atvus electric car, the Audi R8 e-tron electric car ceases production, and we drive the updated 2017 Toyota Corolla compact sedan. All this and more on Green Car Reports. What will be the most unexpected thing about the Tesla Model 3? Our Twitter followers weighed in for our latest poll. A new hydrogen... 
The Toyota Corolla has been almost the default compact sedan among North American buyers for what seems like decades now. In good years, more than 350,000 are sold to retail and fleet buyers in the U.S., and they're part of the automotive landscape in even the reddest states of the union. The latest Corolla is thus cautiously evolutionary, with... ![Atvus electric car to be built by Atieva [image: Recode, via California public-records request]](http://images.hgmsites.net/tmb/atvus-electric-car-to-be-built-by-atieva-image-recode-via-california-public-records-request_100577721_t.gif)
There's no shortage of putative rivals to electric-car maker Tesla Motors, from German luxury makers to other California startups. Thus far, of course, none have actually put a car on sale—unlike Tesla, which has sold somewhere north of 125,000 cars since 2008. One of the least-known is Chinese-backed Atieva, located in Silicon Valley since...