They offset the Co2 used in production at around 40k miles, but the batteries are extremely recycleable as battery banks for solar systems, or as raw material for new batteries since it is already out of the ground and they have processes to recycle it now. The gas burned by a car can never be recycled or reused and is extremely inefficient in moving a vehicle. Not to mention the toll extracting fossil fuels is having on this planet. EVs get almost 200 mpg equivalent because of their efficiencies of motors and aerodynamics.