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Do EV's actually do anything beneficial for the planet?

I've seen a lot of posts here on Lemmy, specifically in the "fuck cars" communities as to how Electric Vehicles do pretty much nothing for the Climate, but I continue to see Climate activists everywhere try pushing so, so hard for Electric Vehicles.

Are they actually beneficial to the planet other than limiting exhaust, or is that it? or maybe exhaust is a way bigger problem?

210 comments
  • Buying an electric vehicle does not make the world a better place, but buying and using a gas vehicle makes the world worse by a bigger margin, so if you're buying a vehicle, an electric vehicle is probably better.

    • This is a good way to put it. If you're in the market and need a car, ICE you are knowingly hurting the planet a lot. Buying an EV you're at least not making the planet worse.

  • Even looking only at the healthcare costs of the exhaust-induced unhealth, you see massive economic benefit.

    It's the old star-topology vs decentralized-mesh-topology question...

    It is much more efficient to have 1 giant windmill, rather-than a zillion little ones.

    It is much more efficient to have electric-trams than the number of cars required to move the same number of people.

    As for electric-cars vs internal-combustion-engine-cars, the relocation-of-cost from always buying gasoline, to just plugging-in at night, is something that many people have openly adored.

    The Engineering Explained yt channel bluntly stated that if you're in the city, it's a no-brainer.

    Rurally, or in the arctic, you can be screwed, however.

    I've no idea what the equation is for how much exhaust per mile-driven is produced, between

    • star-topology fuel-burning electric-grid powered cars
    • mesh/distributed-topology of the same number of I.C.E. cars

    but it wouldn't surprise me if it is significantly more efficient, just due to getting the maintenance up to industrial standards.

    ( sloppy maintenance costs, and some companies push sloppy maintenance, not changing oil frequently enough, e.g. in order to produce engine-wear, forcing required-replacement.

    Some yt mechanics call-out this practice. )

    _ /\ _

  • They're better than ICE cars so provide a path for improvement on the existing installed base for transportation whilst not requiring people to significantly change their habits or large public investment.

    However they're not the environmentally best solution for transportation in urban and even sub-urban settings: walking, cycling and public transportation (depending on distance) are vastly superior realistic solutions from an environmental point of view in those areas (they're seldom very realistic in the countryside, hence why I'm being very explicity about it being for urban and sub-urban areas).

    However making cities and, worse, suburbia, appropriate for those better alternatives requires public investment (and we're in the late ultra-capitalist max-tax-evasion neoliberal era, so it's very much "screw collecting taxes and spending that public money for the public good"), time and even changes in housing density in many places (US-style suburbia is pretty shit at the population density and travel distance levels for realistic commuting by bicycle or public transport).

    So Electric Cars are a pragmatic environmental improvement in such areas (and pretty much the only realistic solution outside them) and one where the economic elites don't have to pay taxes like everybody else since unlike for public transportation the cost of upgrading is entirelly born by consumers.

  • Doing "pretty much nothing for the climate" is hyperbole, I think. It's hard to say what the net climate benefit EVs might have, because our system is so complex. The numbers I found show that electricity and heating accounted for the highest, single category of CO2 emissions, at around 15 billion tons annually in 2020. Transportation came in second at around 7 billion tons. If we could wave a magic wand, and instantly do a 1:1 replacement of ICE cars with EVs, it would put a big dent in that category's emissions. It would also spike the electricity and heating category. Would the increase be less than the savings in the transportation category? LIkely, and the benefit would increase as more renewable electricity sources come online.

    But even if we further used that magic wand to instantly get all of that new electricity for EVs from renewable sources, that still wouldn't touch the vast majority of emissions, in which car-centric lifestyles play a large role, e.g. manufacturing, construction, land use, even electricity and heating. So saying that EVs will do pretty much nothing for the climate is inaccurate, but so is saying that they're a big part of the solution. They're just incrementally better, and the size of the increment is arguable.

    I think the push-back is mainly directed at that line of magical thinking that says that all we need to do is switch to EVs to drive to the grocery store, bring re-usable bags, and get Starbucks coffee in compostable cups, and the environment will be saved.

  • If they want more people to switch to EVs specifically, they absolutely need to try to make some changes if they can.

    Chargers: In a world where many people are living in old apartment buildings and condos, people are going to need public chargers. I don't just mean enough for 20 people. If we want a big societal switch, we need to be able to assure people that they won't encounter what happened in Texas recently. 60 chargers is still pretty rough if your city has half a million people in it.

    Cost: MANY people can only afford used vehicles. This is not only because of the up-front cost. Parts for repairs can become a massive factor when deciding what type of car to buy. Even if you can get a used car for 6K, you might not go for it if you know that certain important repairs will cost you up to 20K.

    Design: There are concerns for a lot of people with things being too screen-based. Some people like knobs that you can change without having to look away from the road. How many functions will be stuck behind a subscription? Will an update brick your car? Is it ok to tow normally, or will it sometimes require a special flatbed that most people can't afford? Do we have the battery fire thing under full control yet?

    If every single car eventually becomes too expensive, driving will either become a "caste" thing, or people will put things together at home that might be even worse for the environment. Shoddy DIY repairs can also count for this.

  • I once calculated that my upper-middle class EV (2.1 tons in kerb weight, sadly) is better for the environment (indeed, carbon neutral since I'm only using clean energy) starting at 70,000km of driving usage. I'm at 20,000km now, so I'm already 28% there :)

  • In the USA, out of every economic sector, transportation creates the most GHG emissions [EPA1], and the majority of that is from passenger vehicles [EPA2]. Significant portions of the industrial sector's emissions come from refining automotive fuel [EPA3]. US total GHG emissions are down around 20% from their peak in 2005, but almost all of that has come from the electrical power sector [CBO1][CBO2]. Vehicular pollution has dramatic direct health impact on top of GHG emissions [HSPH].

    Transport emissions are the long pole in the tent for the US. Solutions to that will be the focal point of US climate strategy for the next decade. Barring the demolition of the majority of US housing to re-establish walkability, our two best solutions are EVs and public transit.

    EVs cut lifecycle emissions by about 55-60%. [UCS][ANL][MIT][ICCT][BNEF][CB][MIT][IEA]

    Public transit cuts lifecycle emissions by... about 55-60%. [IEA][AFDC][USDOT]

    Neither is a magic bullet. Both get their asses kicked by bicyles (and to a lesser degree, microcars). Both get better with increased passengers per vehicle. Both can be fueled with renewable energy for additional reduction. Both can be manufactured with renewable energy for additional reduction. Both take surprisingly equivalent amounts of raw resources and energy. EVs need batteries that are carbon-intensive under current practices, but rail needs large quantities of steel which is equally carbon-intensive under current practices.

    There are a ton of factors I can barely touch on here, so here's a rapid-fire overview. Public transit offers unique advantages from an urbanist perspective and the liveability of cities [ST], but that's objectively different from sustainability. The US has such low average ridership/occupancy that our busses have more emissions per passenger mile than our cars [AFDC1][AFDC2], and that was before the pandemic -- it's even worse now [NCBI]. Low ridership can be partly attributed to the incompatibility of American suburbs with public transit -- which could be a major roadblock because 2/3rds of Americans own detatched homes [FRED], representing $52t [PRN] in middle-class wealth that they will likely defend with voting power. Climate solutions will need to maneuver around this voting bloc. I personally think individual EVs and intercity rail are complementary technologies -- the more cheap (short-ranged) EVs are out there, the more people will lean on public transit for long trips. Heavy rail gets way better efficiency per vehicle mile than light rail or commuter rail and I have no clue why [APTA][ORNL], but I'm not as impressed by light rail as I expected to be. Since public transit and personal transport leverage different raw resources and face different challenges to adoption, we will achieve the most rapid decarbonization if we do both at the same time.

    TL;DR

    This is a huge, huge question, and anything short of a dissertation would fail to answer it objectively. My best answer is that the most effective solutions to climate change are diverse, engaging multiple technologies in parallel. EVs are a piece of the puzzle, but not a one-size-fits-all solution.

  • "Pretty much nothing" is an exaggeration, but they aren't wrong in stating that it isn't the ideal solution. You've pobably already seen them talk about how shitty the Lithium mines are for the environment, and if you're still getting your electricity from, like, coal plants or other environmentally unsustainable places, well, you're not emitting CEO2, but the plant that outputs the electricity that fuels the car is now outputting more. It's still better than nothing, though

    My personal issue with EVs isn't so much that they aren't perfectly ecofriendly, but that the biggest pushers of EVs are still capitalists with an industry to make money. The best we have in terms of solutions is better civil engineering for walkable cities and a robust and efficient public transport system. 5 EV buses is better than 50 EV cars. Thing is, companies making EV cars still want to make money. They have no incentive to actually push for public transport (Some like Tesla seem actively hostile towards the idea), as they would make more money on 50 electric cars than 5 electric buses. Considering how much power companies have in politics, especially in the US (which is from where I'm speaking), things don't look good

    I'm certain that EVs are less of an issue in, like, the Netherlands, where public transport is better, and people can just bike everywhere. Again, though, I am speaking as an ignorant American, seeing how things are playing out here. Either way, EVs are generally preferable to ICE cars, but they are a far-cry from the actual solution they are being marketed as

  • Pretty much; although, (more importantly IMO) it also removes their economic support from oil companies. GHG's are still produced when obtaining lithium for the batteries, aluminium for the body, etc. There's as well the break and tyre particles that are still major pollutants regardless... despite all that it's still better then using a gas engine.

    It's also not easy to convince someone to change their preferred mode of transport and EV's provide an acceptable (and in many ways superior) alternative. Not to mention taking the bus or riding a bike just isn't feasible for some people, similarly some places (like Japan with three separate voltage standards) don't have the necessary infrastructure and capacity to support EV's.

  • Short term EVs aren't making a lot of difference due to the higher energy costs of manufacturing them. Long term cars are just a terrible transportation method, especially within cities, and we really need alternatives so that we can get rid of most of them.

    On the other hand as renewable energy sources take over the grid the energy costs of manufacturing EVs will be less relevant to climate change, and it's just going to be faster to switch power plants and new car manufacturing over than it will be to rebuild the entire transportation infrastructure on all of Earth, especially North America. That time difference will have a large effect on how bad things will get by the end of this century. EVs are dumb, but also a necessary stopgap.

  • I’m no expert, but I’ve asked the same question myself.

    First off, I’ve been told that yes, exhaust from I.C.E. vehicles is very much a HUGE environmental concern. That being said, however- due to issues with current electrical generation, means that unless large steps are taken toward sustainable green energy, running the current grid for enough to cover charging needs produces a comparatively close amount of pollution per mile driven. On top of that, is the issue with the rare-earth minerals needed to manufacture the batteries used in current EVs, which are extremely damaging to mine, especially in increasing quantities. And finally- once they are worn out, there is no reliably safe way to dispose of those batteries. And the current lifecycle of them averages around 3-5 years, so as more are disposed of, that impact on soil and water tables is projected to skyrocket.

    So it’s a many-fold issue, and at the end of the day they aren’t necessarily WORSE than ICE vehicles, but they are also not really any better.

    As for why people THINK they are super environmentally friendly? In a word- marketing.

    • Worth noting that with the current US electrical grid an EV produces about half to too thirds of the pollution per mile, and is expected to be down to one third by the time a new electric vehicle bought today reaches the end of its life. Given that cars represent a significant portion of the transportation sectors carbon emissions, which in turn represent theory percent of the US entire emissions, I wouldn’t call halving that inside ten years insignificant, especially as there is no practical alternative that could be implemented on a similar time scale that would be prevented by said EV adoption.

      It’s also practically possible to decarbonise electricity, indeed renewables are now cheaper than fossil for new electrical generation even accounting for their intermittence, while it’s not really feasible to do so with oil. While carbon capture is a thing, it hasn’t been able to scale well dispite having been thrown money at for nearly fifty years now and there industries like aviation that can pay a lot more to get first dibs on said fuel.

      Lithium is hardly particularly damaging to the environment to mine when compared to most other mining operations, like in the case of the worlds largest lithium producer’s(Australia) the coal mines next door. Cobalt actually isn’t that relevant in mass adoption scenarios as it’s cost means it tends to be completely absent in most adorable mass market EVs which currently tend to use LFP as compared to lithium ion or nickel cadmium.

      As for recycling batteries, you just toss them in a industrial scale dielectric bath crusher and treat the output as absurdly high grade lithium-cobalt ore. The reason it has been slow to scale is not technical difficulty but rather a lack of demand, as even the first model S(one of the first properly mass produced EVs) will still have over two hundred of its two hundred and sixty mile range today. Given that one can cross the entire US with only a hundred mile range, there is still a lot more demand for reusing such cars then you get from the batteries scrap value even before considering the demand for cheap large scale batteries for things where that loss of power density doesn’t matter.

      After the used and crashed market reaches maturity and we go from being able to just reuse them, recycling will actually become a significant strength of EVs, as a majority of the emissions are in battery mining, and thusly only happen once. We have a 97% capture rate on lead acid car batteries today, and thouse are only worth dozens of dollars in material, not thousands, so I hardly expect any to make their way into landfills in sufficient quantities to compete with the byproducts of even just refining oil on water and soil conditions.

    • A lot of ICE cars nowadays are hybrids which have just as many rare earth mineral requirements and still have terrible exhaust issues. EVs are a massive step up in sustainability.

      • Don't forget the fact that you've now got two propulsion systems to maintain, meeting at the nexus of a much more complex transmission.

        More can go wrong, though admittedly Toyota seems to have gotten a lot right. But if you have an issue, lots and lots of parts to consider.

210 comments