Electric-car mandates can be a powerful tool for reducing transportation-related emissions. California first proposed its current zero-emission vehicle mandate in December 2011, but similar mandates are only now being widely adopted elsewhere. One such policy in China is creating friction, however. DON'T MISS: Quebec passes Canada's first... Germany ‘reassured’ after worries on Chinese electric-car mandates
Electric-car mandates can be a powerful tool for reducing transportation-related emissions. California first proposed its current zero-emission vehicle mandate in December 2011, but similar mandates are only now being widely adopted elsewhere. One such policy in China is creating friction, however. DON'T MISS: Quebec passes Canada's first... 
China overtook the U.S. last year to become the world's largest market for electric cars. But a large portion of the vehicles included in Chinese new-car sales tallies are low-speed electric vehicles that would not meet U.S. standards for highway-capable cars. Now Chinese regulators are paying more attention to these vehicles. CHECK OUT: China To... 
New Jersey was always the place for residents of neighboring states—Delaware, New York, and Pennsylvania—to buy cheap gasoline. That era ended two days ago, when a political deal struck between its legislature and the governor raised the state gas tax by a whopping 23 cents a gallon. Today, a new coalition launched with the aim of... ![Electric-car rally in Geiranger, Norway [Image: Norsk elbilforening via Flickr]](http://images.hgmsites.net/tmb/electric-car-rally-in-geiranger-norway-image-norsk-elbilforening-via-flickr_100530088_t.gif)
When it comes to electric-car adoption, Norway is unique. Electric cars make up a larger share of new-car sales in the Scandinavian country than anywhere, thanks to a very particular combination of factors. On average, most Norwegians drive short distances, meaning the relatively short ranges of the first crop of modern electric cars were never as... 
When it comes to electric cars, China has some of the most generous incentives of any country. But in its attempt to promote greener vehicles, China has largely ignored hybrids to focus on cars with plugs. Efforts so far have concentrated on what the government calls "New Energy Vehicles," a category that encompasses electric cars, plug-in... 
Owners love them, but modern electric cars have not made a large dent in sales of internal-combustion cars since becoming widely available five years ago. In fact, but for a few exceptions, electric cars essentially wouldn't exist without legislation aimed at lowering transportation-related carbon emissions. Tesla's success in raising the profile... 
Within the next 15 years, the world's wealthy cities could be teeming with electric cars. That's the prediction of a new report, which claims electric cars could account for two thirds of the cars on the roads of 50 major world cities by 2030. Researchers predict that a combination of growing consumer interest and stricter emissions standards will... 
Last week, the German Federal Council adopted a bipartisan measure that would ban all internal-combustion engines on German roads after 2030. While its actions only apply within Germany, language in the measure asks the European Union to ensure that all such cars are banned within the EU after that year at the latest. Type approval for road... 
After much discussion, the United Nations' aviation agency plans to set limits on emissions from international airline flights. The agreement ratified by members of the UN International Civil Aviation Organization (ICAO) sets airlines' carbon emissions in the year 2020 as the ceiling of the total amount that will be legally allowed. Airlines that... 
Supporters of ride-sharing services like Uber and Lyft believe they can do more than simply serve as alternatives to private car ownership. Both companies and policymakers are experimenting with ways to use ride-sharing to supplement, even replace, dedicated mass-transit infrastructure. The latest example comes from New Jersey, where officials in... 
Of California's many incentives for green cars, one of the most popular is solo access to the state's carpool lanes for drivers of electric cars, plug-in hybrids, and certain other vehicles. But while California will distribute an unlimited number of "white stickers" for electric cars—as well as vehicles using hydrogen fuel cells and...