Proponents proudly proclaim that if an electric car is driven about 300,000 kilometers (180,000 miles), it will have emitted less than half the CO2 of a gasoline-powered car. But its battery will likely need to be replaced long before it reaches this target, implying many more tons of CO2 emissions.
支持者骄傲地宣称，如果电动汽车跑过300000公里，其二氧化碳排放量将只有汽油动力汽车的一小半。但其电池寿命远远不足以支撑300000公里里程，而换电池意味着增加好多吨二氧化碳排放量。