"CO2 is not a pollutant, any more than water vapor is."
CO2 actually is considered a pollutant by the EPA. There are lots of things that are 'natural' but that are still pollutants. For example, fine particulates are considered a pollutant because they cause cancer. Thus construction equipment is not allowed to vent unlimited amounts of diesel fumes, even though much of what is released is basically the same as the stuff that already occurs to a small extent in the natural environment.
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"CO2 is not a pollutant, any more than water vapor is."
CO2 actually is considered a pollutant by the EPA. There are lots of things that are 'natural' but that are still pollutants. For example, fine particulates are considered a pollutant because they cause cancer. Thus construction equipment is not allowed to vent unlimited amounts of diesel fumes, even though much of what is released is basically the same as the stuff that already occurs to a small extent in the natural environment.
> CO2 actually is considered a pollutant by the EPA.
So what? The EPA is a regulatory agency. If they define something as a pollutant, they get to issue regulations and control things.
If you're going to take a regulatory agency's word, ketchup is a vegetable....
CO2 actually is considered a pollutant by the EPA
A political decision, not a scientific one. Made recently by the current administration, and likely to be dropped by the next administration.
I agree on the "natural" bit though. Hell, cyanide is all-natural. For that matter, peanuts are all natural but still deadly to some people.