Comment by Rygian
5 hours ago
The first ever version of the "Greenhouse gas" wikipedia page lists CO₂ as the first such gas (besides water vapor, obviously disregarded).
That page is from 2002.
https://en.wikipedia.org/w/index.php?title=Greenhouse_gas&ol...
besides water vapor, obviously disregarded
Don't be so sure about "obviously" when they start talking about "water vapor emissions"...
I'm talking about redefining the term "pollution," not the term "greenhouse gas."
Carbon dioxide atmospheric pollution has been acknowledged since literally the 1800s. What era are you from? Are you 200 years old?
Did we call it “pollution” back then or something else? That is, did we lump CO2 conceptually into the same category as soot from coal plants and things like that?
Society uses labels to group things together so that we can treat similar things similarly for various purposes. For example, when we talk about “education” we usually mean teaching kids in schools or colleges. Of course, there’s lots of other things you can call “education.” But if the Department of Education comes in and says it’s going to regulate technical presentations at software conferences because that’s also “education,” then you’d say: “that’s not what people mean by the word education in this context.” That is, we have a consensus about what “education” encompasses and what it doesn’t for purposes of government regulation, and seminars at conferences falls outside that understanding.
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IPCC first report was 1990, and the basic arithmetic of the atmosphere goes even further back.
Right, but the 1990 IPCC report doesn’t use the term “pollution” to refer to CO2: https://www.ipcc.ch/site/assets/uploads/2018/05/ipcc_90_92_a...
It uses the term “greenhouse gas” to refer to CO2 and uses the term “air pollution” to refer to what people traditionally think of as air pollution. For example, in one place of says: “Consequences of CO2 enrichment and climate change for natural terrestrial ecosystems could be modified by other environmental factors, both natural and man induced (e.g., by air pollution).” So that’s treating “CO2 enrichment” (emissions) as distinct from “air pollution.”
I was battling global warming in Civ endgames in 1991...
I think you miss rayiner's point. He's not disputing whether CO2 is a greenhouse gas. He's saying that doesn't make it a "pollutant" as the term was understood at the time, say, the EPA was created. There was no congressional legislation that said that it was something the EPA was empowered to regulate. Then the EPA decided to regulate it anyway (and, yes, won the court case about whether it could). But it was still shoehorned in, as it was not considered a pollutant in the way that NO2 or particulates or chlorine were.