I don't see the point of trying to redefine "pollution" to include CO2. We have been discussing climate change for decades, but it was only recently that people tried to shoehorn CO2 into category of "pollution." It just takes a category where society has some consensus and then shoehorns some new disputed idea into existing category. It's an end-run around the process of building consensus around the new thing.
This is ridiculous. There is no redefinition, it was always part of definition. Seriously. The only end run around consensus are lies like "CO2 as polution is a novel thing".
In the 1990 IPCC report it talks about “greenhouse gasses” and also about “air pollution” but treats those as two distinct things: <a href="https://www.ipcc.ch/site/assets/uploads/2018/05/ipcc_90_92_assessments_far_full_report.pdf" rel="nofollow">https://www.ipcc.ch/site/assets/uploads/2018/05/ipcc_90_92_a.... For example, on page 97, it says “CO2 enrichment” may “enhance plant growth,” but that “enhanced levels of air pollution could also reduce this positive effect.” There’s it’s clearly talking about CO2 and air pollution as two different things that have opposite effects on plant growth.
CO2 can be pollution while still allowing plants to grow, plants use CO2 in their growth cycle, if you didn't know, they don't use other greenhouse gases to grow.
Page 9 lists CO2 as the first item in a list of greenhouse gases. I don't want to spend all day read this 37 year old report.
In what world are greenhouse gases not air pollutants?
It's a pollutant in quantities such as emitted by human activities, always orders of magnitude more than what any terrestrial life form emits through respiration.
This GHG is emitted (alongside methane, by the way), by humans, in such quantities that it severely impacts the thermal balance of the planet, and threatens an extinction-event comparable to what only large asteroids are usually capable of.
rayiner · · focus · HN ↗
watwut · · focus · HN ↗
rayiner · · focus · HN ↗
Source?
wyre · · focus · HN ↗
The thing that is also known as "air pollution"?
I want to tell you to stop being a moron, but its against this site's TOS.
rayiner · · focus · HN ↗
Is the IPCC also “morons?”
wyre · · focus · HN ↗
CO2 can be pollution while still allowing plants to grow, plants use CO2 in their growth cycle, if you didn't know, they don't use other greenhouse gases to grow.
Page 9 lists CO2 as the first item in a list of greenhouse gases. I don't want to spend all day read this 37 year old report.
In what world are greenhouse gases not air pollutants?
xyzzyz · · focus · HN ↗
henearkr · · focus · HN ↗
This GHG is emitted (alongside methane, by the way), by humans, in such quantities that it severely impacts the thermal balance of the planet, and threatens an extinction-event comparable to what only large asteroids are usually capable of.