愿景2050系列视频（六）：城市在交通领域减排中发挥的作用

Cities are at the epicenter of the global transition to electric passenger cars. Just 25 metropolitan areas are home to 1.4 million of the world’s 3.1 million plug-in hybrid and full battery electric vehicles. What’s driving these sales? In a word, it’s the cities themselves that are making this happen, combined with national policies.