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A comment on Engineers find neat way to turn waste carbon dioxide into useful material. Parent comment

Re:Engineers find neat way to turn waste carbon dioxide into... by namibj on Monday June 15, 2020 @04:26AM (#23525116)
If you figure out some concrete setup, let me know. I am fairly certain that there are measurable cognitive effects at "just" 500 ppm, and good luck staying below that when you can't just sit at an open window outside of a city.

1000 ppm is btw. enough to feel uncomfortable. Cognitive impairment will be much more subtle.

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Re:Engineers find neat way to turn waste carbon dioxide into... by lugorrr on Monday June 15, 2020 @06:08AM (#23525712)
I am fairly certain that there are measurable cognitive effects at "just" 500 ppm

Well, that would be problematic sooner or later [1].

[1] https://www.esrl.noaa.gov/gmd/webdata/ccgg/trends/co2_data_m...

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Re:Engineers find neat way to turn waste carbon dioxide into... by gpm on Monday June 15, 2020 @08:18AM (#23526527)
Indoors that's problematic today, outdoors we have "awhile" if you make 500 your cutoff, we're only growing at ~2.4 ppm per and the yearly peak is at roughly 420 right now, we can probably count on 20 years before we hit 500 outdoors.

https://www.co2.earth/co2-acceleration

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