Why do Tea Baggers want to get rid of Scientists who check air quality, why don't they want Clean air?

What does reigning in the EPA have to do with making it function better (which it needs to) to ensure companies are operating without destroying the planet around us. It's always the extreme with most of the Tea Party saying to de-fund most of the government expect for defense. Why don't they just call themselves libertarians (drop the whole tea party charade) and be done with it. Taxed enough already - I know plenty of liberals who have protested in DC for decades against tax hikes. That isn't an ideologue reserved just for conservatives; what it really boils down to is if either side thinks there taxes are being spent on what they agree on.