If there's one thing about the growing demand for EVs that we have tried to point out over the last month, it's the fact that the rhetoric about the "green" vehicles being perfect for the environment with little consequence isn't exactly 100% accurate.

Just over the last two months, we've written not only about how much driving needs to be done in EVs to make them better for the environment than internal combustion engine vehicles, but we've also noted that EV carbon footprints aren't necessarily as better than ICE vehicles as many people think.

Now, more questions are starting to be raised about the potential unintended consequences of the EV revolution. Notably, how can the metals used for EV batteries be recycled and reused as part of a circular economy before a materials crunch - or environmental impact from mining - negates the "green" label affixed to EV vehicles. That's the question FT delved into this week in a new report.