One experimental clean-energy car runs on natural gas. Another USES ethanol distilled from corn. A third has a zero-emissions electric motor powered by a hydrogen fuel cell.

一辆尚处于实验阶段的清洁能源汽车依靠天然气行驶。另一辆使用从谷物蒸馏而来的酒精。第三辆则装有由氢燃料电池提供能量的零排放发动机。

youdao

"We're pleased the label clearly demonstrates the Nissan LEAF to be a best-in-class option, reflecting that it's a pure electric vehicle, uses no gas, has no tailpipe and has zero emissions, " said Scott Becker, senior vice president, Finance and Administration, Nissan Americas.

ENGADGET: Nissan Leaf blessed with 99MPG 'equivalent' sticker, roundtable arguments ensue

It also has yet to offer any voluntary emissions goals, and currently generates zero percent of its energy from renewable sources.

FORBES: Qatar: An Odd Place For Climate Talks?

Toyota has always believed that fuel cell technology is the long-term answer for zero emissions driving, so the company pulling back from a tepid market should not be viewed as a surprise.

FORBES: Retreat on EVs Not a Rout