A lot of battery manufacturers are trying to get away from manganese, cobalt etc. and other rare earth minerals in favour of things like sodium-ion batteries, structured carbon batteries, to both drive down price and stop having to mine the ocean's floor. saying that we shouldn't switch to EV's because they're currently a bit wasteful is like writing off modern cars because a model T is slow. Battery tech will get better, and many many times more efficient, and is already more environmentally friendly than ICE's, and further investment into EV's is going to accelerate that. look at what tesla has done with south australia's battery backup. No way that would've happened without model 3's selling like hotcakes.
anyway, if you want to be green in a pug, just get a 405 turbodiesel. 4.5l/100km by god that fuel efficiency