BSM1
What? Me worry?
All of the above.
Mostly, we stop making all our laws and policy decisions based on maximizing profits to capital investors, and we start making them based on the quality of life of all the citizens of the nation (and ultimately of the world). The only way this can happen is to stop the corrupting influence of greed (in the form of massive wealth) on the power of social institutions like government, the media, and the marketplace. And the only way to stop that is to stop the accumulation of great wealth in the hands of a few people. Wealth and responsibility have to be spread around, so that everyone gets a piece, and everyone gets say. Anyone who's ever played the monopoly game knows that the game is over when the "winner" gets all the cash and property.
Unfortunately the biggest world culprits of pollution don't give a fig about your concerns, baseless though they be. How do we stop them? Nukes?