There’s little danger to humans of too much CO2 in the air they breathe. Even the Environmental Protection Agency says 1000 ppm is the safe limit for lifetime human exposure. Space shuttle CO2 alarms are set at 5,000 ppm, and the alarm in nuclear subs is set at 8,000 ppm. Today it's about 400 ppm.

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[–] • 4 pts

the arguement was never about human health but environmental change. either side has their points but if you look at the makeup of air CO2 isnt that much its 70% nitrogen

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[–] [deleted] • 1 pt

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Nitrous oxide (or N2O), is more commonly known as laughing gas. But the nitrous oxide in the atmosphere doesn’t come from dentists — it comes from nitrogen-based fertilisers.

https://theconversation.com/meet-n2o-the-greenhouse-gas-300-times-worse-than-co2-35204

Global Fertilizer Market Report 2021: Market was US$ 83.5 Billion in 2020 and is Estimated to be Worth $93.9 Billion by 2027.

https://www.prnewswire.com/news-releases/global-fertilizer-market-report-2021-market-was-us-83-5-billion-in-2020-and-is-estimated-to-be-worth-93-9-billion-by-2027--301241500.html

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[+] [deleted] • 2 pts

[–] • 0 pt

Laughing gas is what lead my into my many years of drug experimenting. Ever since I went to the dentist that one time. After that I wanted to know how every drug felt. Never had a drug that sucked

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