Humans have caused 1.5 °C of long-term global warming according to new estimates

Re:Humans have caused 1.5 °C of long-term global warming acc... by hartator on Sunday November 17, 2024 @04:08PM (#42167271)

> Just breathing air with higher CO2 concentration already isn’t that great.

Or less O2. I wonder if there any study that does show any impact already or these are still speculations?

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Re:Humans have caused 1.5 °C of long-term global warming acc... by Filligree on Sunday November 17, 2024 @04:16PM (#42167350)

There isn't less O2. Even if all plants on earth disappeared (and animals somehow survived that), it would take millions of years before there's any measurable impact on O2 concentrations.

Moreover, there's no physiological impact whatsoever until you drop several percent.

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Re:Humans have caused 1.5 °C of long-term global warming acc... by hartator on Sunday November 17, 2024 @04:33PM (#42167512)

O2 does decrease and is measurable: https://www.oxygenlevels.org/

I think this is a more marketable concern than CO2 as without O2 most know that you can’t live.

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Re:Humans have caused 1.5 °C of long-term global warming acc... by nradov on Monday November 18, 2024 @02:40AM (#42170534)

Those are meaningless changes. It's less than the effect of walking up a small hill in terms of inspired oxygen partial pressure.

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