It'd be nice if researchers compared the impact on environment of disposing of the batteries (toxic metals, chemicals, other components) with the impact on the environment of the truck burning fossil fuels. In the end, what's the net benefit? Maybe it's great, I don't know. I feel we're getting a very one-sided assessment, though.
That's what's called a life cycle assessment and these are standard in products like this for a long time. If they came out negatively, you can be damn sure that the fossil fuel industry would make us know.
CO2 increasing is a pretty one-sided and horrible effect, too. It's by far the dominant problem.
These are old talking points from the fossil fuel industry. The batteries themselves will be recycled to recover their valuable minerals. The process will certainly require care to avoid localized pollution. Compare that with burning fossil fuels- baked into their design is emission of heat trapping gasses which systemically affect the entire planet. It’s clear we need to stop burning fossil fuels lest we overheat the earth.