1. EVs are much better for the climate than gas-powered cars.
There are a few reasons why EVs come out so far ahead. Electric motors use energy far more efficiently than their internal combustion counterparts, which waste a huge amount of energy through friction. Electric motors are able to convert up to 85% of the energy they burn into motion, compared to less than 40% with a combustion engine.
But there’s also a far more obvious reason: Electric vehicles don’t require you to keep filling up the tank with gasoline and burning it. EVs do need to get recharged, and some of that electricity may be generated by burning fossil fuels. Increasingly though, the power grids in the United States are being powered by clean energy.
Here at Earthjustice, we are a major force behind the country’s transition to cleaner power. As the world’s largest nonprofit environmental law firm, we have used the power of the law to force the retirement of more than 150 coal-fired power plant units. And we are working in local and federal regulatory agencies to clear the way for more renewable power to come online.
2. EVs require fewer natural resources.
Both mining for minerals to make a battery and drilling for oil to fill a gas tank create serious environmental impacts — but the scale of impact differs wildly. There are lots of ways to compare the material resource requirements of electric versus internal combustion cars. One way to think about it is lifetime raw consumption of materials from the earth. A calculation by the European Federation for Transport and Environment found that the lifetime fuel consumption of a traditional car requires a tower of oil barrels as high as a 25-story building. The metals needed to make an EV battery, meanwhile, are about the size of a microwave oven.
This chart highlights the advantages of electric cars using material resources once, whereas traditional cars require the constant extraction of more oil to fuel the vehicles. This is because mining for an electric vehicle typically happens once, while the oil drilling to fuel a combustion car lasts the lifetime of the vehicle.
Another method of comparison is between the amount of energy needed for both types of vehicles across the entire lifecycle. Battery electric vehicles use 58% less energy than a gas-powered car.
While the switch to electric vehicles will spur new mining and some of the environmental harms that come with it, the metals in electric vehicle batteries can be recycled. Once you burn the gasoline in your tank, there’s no possibility of recycling that – we will all be breathing the resulting pollution and you will need to buy that next tank of gas, again and again.
Earthjustice has been working in the halls of the federal government to reform our outdated mining laws and to establish the framework for a circular economy around electric vehicle batteries.
