Don Sadoway has a really interesting MIT open course wear course on solid state chemistry. I think it is in there where he mentions an interesting trade off be

Don Sadoway has a really interesting MIT open course wear course on solid state chemistry. I think it is in there where he mentions an interesting trade off between the environmental cost of making aluminium vs the long term savings of making, for example, car parts out of aluminium rather than say cast iron which they would have been made from in the past. Which is to say, it's not immediately clear that increasing the cost of aluminium to encompass the externalities of shipping it is actually a net benefit to the planet as a whole.