Whether or not global warming is attributable to human activities is a moot point.

We already know that it is real.
We already know that smog causes asthmatic folks problems.
We already know that Ozone is poisonous and not something we want to breathe.
We already know that acid rain is real.

So what are we going to do about it?

Study it until it goes away!

And you just know that the powers that be have good water and air filters in their home so why should they worry?