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the claim

Adding more carbon dioxide to the atmosphere will not have an impact on global temperatures.

the verdict
REFUTED
the evidence says no
Recorded sources
0 sources for · 5 against

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

Is it true that adding more carbon dioxide to the atmosphere will not have an impact on global temperatures?

No. The claim that adding carbon dioxide to the atmosphere will not impact global temperatures is refuted by extensive physical principles and climate modeling showing that carbon dioxide acts as a greenhouse gas driving radiative forcing and temperature increases.

Verdict: REFUTED · 0 sources for, 5 against · Last checked

The analysis

The vast consensus in climate science, supported directly by multiple retrieved papers, establishes that carbon dioxide absorbs outgoing longwave radiation and exerts positive radiative forcing, causing global temperatures to rise. Only an outlier paper using highly debated proxy interpretations argues otherwise, which is heavily outweighed by modern empirical and modeling consensus.

Evidence against · 5
Climate Sensitivity to Carbon Dioxide and the Moist Greenhouse Threshold of Earth-like Planets under an Increasing Solar Forcing
2018
Carbon dioxide is established as a major contributor to radiative forcing, directly increasing both temperature and atmospheric humidity.
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Gómez-Leal, I., Kaltenegger, L., Lucarini, V., & Lunkeit, F. (2018). Climate Sensitivity to Carbon Dioxide and the Moist Greenhouse Threshold of Earth-like Planets under an Increasing Solar Forcing. doi.org. https://doi.org/10.3847/1538-4357/aaea5f

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More against · 4
Permafrost carbon release scales linearly with overshoot warming mediated by AMOC tipping.
2026
Climate models demonstrate that permafrost carbon release and cumulative warming scale linearly with temperature overshoot scenarios.
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NJ, S., J, S., E, B., B, Z., T, G., G, M., C, M., SW, P., & H, L. (2026). Permafrost carbon release scales linearly with overshoot warming mediated by AMOC tipping.. doi.org. https://doi.org/10.1038/s41467-026-73612-0

Metamorphic sulfur release as a driver of sustained cooling and mass extinction.
2026
Greenhouse warming driven by carbon dioxide produces sustained millennial-scale warming trends.
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EM, S., MS, D., & LJ, A. (2026). Metamorphic sulfur release as a driver of sustained cooling and mass extinction.. doi.org. https://doi.org/10.1126/sciadv.aee2277

Instantaneous heating rate forcing differentiates tropical high-cloud adjustments across greenhouse gases.
2026
Changes in greenhouse gas concentrations alter radiative heating profiles and upper-tropospheric cloud dynamics.
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YT, C., TM, M., & Y, H. (2026). Instantaneous heating rate forcing differentiates tropical high-cloud adjustments across greenhouse gases.. doi.org. https://doi.org/10.1126/sciadv.aef7462

A potential overestimation of CO<sub>2</sub> physiological effects on evapotranspiration.
2026
Coupled earth system models illustrate that increasing carbon dioxide levels drive surface warming and alter vapor pressure deficits.
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Y, H., X, Y., X, X., Z, Z., G, F., & P, W. (2026). A potential overestimation of CO<sub>2</sub> physiological effects on evapotranspiration.. doi.org. https://doi.org/10.1073/pnas.2534643123

What does the evidence say?

The vast consensus in climate science, supported directly by multiple retrieved papers, establishes that carbon dioxide absorbs outgoing longwave radiation and exerts positive radiative forcing, causing global temperatures to rise. Only an outlier paper using highly debated proxy interpretations argues otherwise, which is heavily outweighed by modern empirical and modeling consensus.

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