Well, right now it is impossible to live a modern life without taking part in activities that can cause pollution.

You talk about smartphone, and those gadgets are right now the center of our live, we have everything in there.

In my opinion, pollution will continue to be a problem for the next several decades, until we figure out a way to fabricate modern gadgets, by means that create zero contamination. But we are still far from achieving that.

Cheers! @gero1977