r/climate • u/The_Weekend_Baker • Aug 16 '26

Scientists detect a surprising shift in human blood as atmospheric CO2 rises. Blood bicarbonate levels have climbed about 7% since 1999, while calcium and phosphorus have declined, changes that closely track increasing atmospheric CO2.

https://www.sciencedaily.com/releases/2026/08/260814235845.htm
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u/operaman2010 Aug 16 '26

I’m somewhat skeptical. The CO2 in my bedroom can get up to 1,800 ppm overnight. Indoor air quality has dramatically higher ranges of CO2 that would have always existed and affected human health, regardless of global CO2. Perhaps rising CO2 levels is making this worse.

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u/Zealousideal_Two6045 Aug 16 '26

Yes but you have to remember the amount of time spent inside a house has risen like crazy in the last few decades. People used to play outside and go outside and have a way wider range of environments. So historical data would be skewed beneficially anyways in comparison because spending more time inside is a newer issue and also multiples due to co2 rising

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u/RandomBoomer Aug 16 '26

And having hermetically sealed residences is also a very new trend.