Re: Disgusted
Once upon a time, I spent several hours in the middle of the day having my car 'smog tested'. It passed with flying colours. On the way back to the office, I was waiting a red light, when a city bus went flying across the intersection trailing a huge column of thick sooty smoke.
Car: parts per million
Bus: thousands of cubic meters of soot
Public Transit isn't always 'Green'. Sometimes it's endless orders of magnitude worse, by any standard.