I am staunchly against real pollution, almost to the point of being considered the "environmentalist" dirty word among conservatives. CO2 is emitted by every animal on the planet and without it plant life could not exist. Comparing that with other forms of pollution I think is laughable.
From the heavy metals dumped into rivers in China, to the 240,000 barrels of crude oil spilled annually in the Niger River delta in Nigeria, to the farm and residential chemical and fertilizer runoff in the US rivers, we have much bigger problems from a pollution standpoint globally. But everyone is focused on CO2, I'd say it's stupidity, but the reality is that there are ulterior motives to the focus on CO2 because it is something they want to tax.