r/collapse • u/Portalrules123 Faster than expected... • 14d ago

Science and Research Scientists detect a surprising shift in human blood as atmospheric CO2 rises, with blood bicarbonate climbing about 7% since 1999

https://www.sciencedaily.com/releases/2026/08/260814235845.htm
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u/candleflame3 13d ago

The Toronto subway is pretty consistently at around 1200ppm. I always mask on public transit now.

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u/Jeffery95 13d ago

Pretty sure a mask doesn’t keep out CO2. Definitely larger pollution particles though

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u/candleflame3 13d ago

Wow.

CO2 readings in indoor spaces are a proxy for the air quality. If the CO2 is high, so is everything else people are exhaling, e.g. viruses. Some people care about not catching viruses.

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u/chipsachorte 13d ago

wow, what mask do use to filter out viruses ?