Specifically on electric cars and hybrids, mining, refining, and processing the elements in the batteries is pretty nasty business, as is the recycling &#x2F; disposal of them once they&#x27;re flat. There are tons of EVs and hybrids out there, and I see this becoming a huge e-waste problem in the near future. Note that Tesla is&#x2F;was doing something to make the part after they&#x27;re discarded less bad: <a href="https:&#x2F;&#x2F;www.teslamotors.com&#x2F;blog&#x2F;mythbusters-part-3-recycling-our-non-toxic-battery-packs" rel="nofollow">https:&#x2F;&#x2F;www.teslamotors.com&#x2F;blog&#x2F;mythbusters-part-3-recyclin...</a>