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Greenhouse gases are gases that trap heat into the Earth's atmosphere these gases are Carbon dioxide (CO2), Methane (CH4), Nitrous oxide (N2O), Hydrofluorocarbons (HFCs) Perfluorocarbons (PFCs) Sulfur hexafluoride (SF6), Nitrogen trifluoride (NF3) and et cetera.
40
votes
CO₂ level is high enough that it reduces cognitive ability. Isn't that a reason to worry?
There looks like legitimate cause for further study, preferably by scientists breathing air under 950 ppm $\small\mathsf{CO_2}$ (this study showing a 15% decline in cognitive ability at this level).
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1
vote
Why is CO₂ abundance in the atmosphere still small?
"Small" is a vague and slippery term. There is now a lot more CO2 in the atmosphere than there was a century ago and that change has consequences, especially to climate stability. There is a lot more …
9
votes
Accepted
How much does overpopulation affect the carbon dioxide concentration in the air in terms of ...
Human and animal respiration has no global warming impacts. The CO2 released by respiration is in balance with the CO2 absorbed by the plants that became the foods that were the source of the CO2 rele …