Carbon Dioxide
Finally, we come to the end of this depressing list.
Once again…
Where does it come from?
Basically everywhere- like breathing, which is why the new Federal car emission standards require you to hold your breath while you drive unless you convert to a cleaner fuel…just kidding…maybe.
In this instance Carbon Dioxide is a major component of vehicle exhaust.
Why is it bad?
While Carbon Dioxide is not deadly to humans to breathe, it is believed to be a contributor to global warming and climate change.
At least it's not as cold outside...
