这不是秘密。电动汽车比他们的汽油动力表兄弟消耗更少的能量。那是好消息，不是吗？是的，但还有其他东西也被考虑。
去年, the global electric car fleet超过五百万。这是上一年的200万美元。电动汽车的环境效益很多。还有其他绿色相关因素也看。这是下降。
Electric Car Batteries
Questions have been raised about the pollution behind the making of the lithium batteries needed to power electric vehicles.
There are some rare metals that are foundinside of a lithium battery。他们的提取可以有助于碳排放。
生产电池的国家也扮演其部分。中国电池制造商生产的二氧化碳比其西方同行更多。
The Environmental Benefits of Electric Cars
There is a stark contrast between emissions from electric cars and gasoline-powered cars.
通过电动车或EVS，没有燃烧，没有尾气排放。这些汽车在制造过程中产生了它们的大部分排放。
与在化石燃料上运行的车辆相比，EVS对其终身的排放远远较低。那是无论源头that generates the electricity to power them.
Debunking the Myths
确实，一些研究试图声称EVS可能不会像你最初想一想那样环保。
这些类型的研究专注于化石燃料用于为网格电力的电力。它们还在电池生产中使用的能量。
However, many electrical grids which power EVs are moving toward reducing their reliance on fossil fuels. At the same time, they’re increasing renewable energy production.
去年17％的电力在美国生成的来自可再生来源。在发展中国家，这些百分比预计会显着增加。
Improved Manufacturing
电动汽车已经在寿命上产生了较少的排放。这与传统动力汽车相比。在EV制造业中规模的增加也将有所帮助。
现在，许多EV都可以实现更高的速度。还在为电池充电的时间长度进行改进。
Better energy storage in batteries means you can now drive EVs further without having to recharge. Many people though use their vehicles for short commutes. This reduces the need for bigger charge capacities in the battery.
制造技术变得越来越有效。回收选项正在增加。这些将有助于EVS成为未来的选择，大大减少温室气体排放。
一个更环保的未来
It still takes energy to manufacture the batteries for electric vehicles as well as the cars themselves. However, this is easily offset by the lack of carbon dioxide they emit during their lifetime on the road.
The environmental benefits of electric cars make them the vehicles of the future. Continue reading more related articles in our ‘ Green Transportation’ section.
