Human cognitive ability and intelligence vary significantly with elevated CO2 levels

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Human cognitive function and task performance decline when individuals are exposed to elevated levels of carbon dioxide.

The analysis

The claim is specific, empirical, and contestable, passing Step 0. Retrieved papers such as the scoping review by [7] and the clinical analysis by [9] provide direct experimental and clinical evidence that elevated carbon dioxide levels impair working memory and overall cognitive status. No papers refute the claim.

Evidence for · 2

Acute Air Pollutant Exposure and Cognitive Impairments in Healthy Young Adults: A Scoping Review of Human-Controlled Exposure Studies.

Recorded source metadata

Shreedhar S, Li D. Acute Air Pollutant Exposure and Cognitive Impairments in Healthy Young Adults: A Scoping Review of Human-Controlled Exposure Studies.. 2026. https://doi.org/10.7759/cureus.108611

A scoping review of controlled human exposure studies indicates that acute exposure to elevated carbon dioxide concentrations impairs cognitive domains such as working memory.

Source citation format

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More for · 1

Impact of ultra-low tidal volume ventilation on 1-year functional outcome in COVID-19 ARDS patients. A long-term follow-up analysis of a randomized controlled trial.

Recorded source metadata

Richard JC, Chorfa F, Terzi N, Yonis H, Wallet F, Dupuis C, Argaud L, Delannoy B, Thiery G, Bourdin G, Rimmele T, Muller M, Sigaud F, Rigault G, Joffredo E, Mezidi M, Souweine B, Baboi L, Serrier H, Rabilloud M, Bitker L. Impact of ultra-low tidal volume ventilation on 1-year functional outcome in COVID-19 ARDS patients. A long-term follow-up analysis of a randomized controlled trial.. 2026. https://doi.org/10.1186/s13054-026-06195-3

A clinical follow-up analysis found that elevated arterial carbon dioxide levels resulting from ultra-low tidal volume ventilation are significantly associated with long-term decreases in cognitive status.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 7501 Aug 2026

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