Norway celebrated a milestone last month, when the majority of its new car sales were of electric vehicles. The country reported that 60 percent of the 18,375 new cars registered in March were electric.

Norway’s electricity is largely generated by hydroelectric power plants, which are cleaner than coal- or natural gas-powered plants. And its residents are wealthier than in many other countries, meaning they’re able and willing to pay more for greener transportation. EV owners get a 50 percent price cut for tolls and parking, as well.

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