[throwaway0a5e]

The deposit has nothing to do with the dirtiness of mining. It's so that people like you don't see a can blowing in the wind.

If it were about the mining the deposit would be on everything else made of aluminum too.

Of all the things to let into the environment aluminum is one of the least worst. As with everything else, it's yet another story about how narratives, marketing, knee jerk reactions and bike shedding are the name of the game when it comes to public policy.