There are many claims that EVs result in more emissions than fossil fuelled vehicles. The reality is that even when an EV is powered from a ‘dirty’ grid, it is clear that driving an EV does creates less emissions. Plus, although some EVs create more ‘build emissions’, EVs still have less lifetime emissions, even on today’s grids. The EV transition will reduce emissions provided it is not rushed.
But the transition still won’t produce the desired emissions until the grid is also clean, and it will take decades to replace traditional vehicles on any sensible schedule.
Buying an EV is better for the environment in the long term than buying an ICE vehicle but can be worse for the environment than just keeping the current vehicle. The key finding is that while it is best to stop buying so many new ICE vehicles ASAP, there should be no rush to replace existing ICE vehicles with EVs, and instead allow existing vehicles the around two decades until their normal scrap date.