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I actually wonder about current co2 levels and concentration. We’ve roughly doubled co2 in human history. Much of that in the last 100 years alone. They say th
by AnotherGoodName 1y ago
I actually wonder about current co2 levels and concentration.
We’ve roughly doubled co2 in human history. Much of that in the last 100 years alone. They say that measurable drowsiness at 1000ppm and when you consider the atmospheric co2 being well above 400ppm and indoor conditions often more than doubling that i wonder if we’re not going to hit a measurable stupefaction of the world. Perhaps it’s already happening.
- escapecharacter 1y agoI think this seems like an interesting point, but one would also need to take into account indoor ventilation, which has gotten much better over the last couple centuries.
- blargey 1y agoInsulation has also gotten much better (stronger) so IME you really need to take advantage of those ventilation advancements just to counterbalance it in newer construction.
- TimorousBestie 1y agoMy office installed CO2 sensors a couple years ago and it’s been very concerning to see them hit 600-750ppm somewhat regularly. But nobody else seems to notice or care? I guess there’s not much can be done when it’s roughly 400ppm outside.
- ivm 1y ago600-750ppm is fine for a closed space, even Aranet4 (the best home sensor) goes yellow only after 1000ppm. I maintain it under 800ppm in winter because that's roughly the value from where serious cognitive decline starts: https://dash.harvard.edu/server/api/core/bitstreams/7312037d-db2a-6bd4-e053-0100007fdf3b/content https://dash.harvard.edu/server/api/core/bitstreams/7312037d...
- TimorousBestie 1y agoThanks, that’s very reassuring to know.
- mattgreenrocks 1y agoWe added a CO2 monitor to our bedroom and it’s amazing how fast it builds up.
- para_parolu 1y agoWhy would carbon dioxide be a problem? I’ve always thought that oxygen levels are the most important factor. Even if carbon dioxide doubled, it would not make a significant difference. In indoor environments, we use carbon dioxide as a signal that oxygen levels are low. Am I missing something?
- lambda 1y agoYou are. The brain actually responds to CO2 concentration, not oxygen concentration. Your metabolism turns O2 and various hydrocarbons into CO2 and water, but many of the feedback loops in this process that mediate how your body metabolizes are based on the CO2 concentration; so even if O2 is unchanged, if you body detects more CO2, it will start metabolizing less.
- z3t4 1y agoI also wonder that if we have bigger body volumes combined with lower lung and heart capacity due to inactivity, would that add to the negative cognitive affect of higher CO2?