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Atmospheric CO₂ (Mauna Loa) vs US Natural Gas Consumption

Atmospheric CO₂ (Mauna Loa) and US Natural Gas Consumption correlate at r = +0.89 over 61 years (1965–2025), p < 0.0001. With the time trend removed, r = +0.75. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = < 0.0001) and the association survives trend removal (detrended r = 0.75). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
+0.89
p-value
< 0.0001
Years compared (n)
61 (1965–2025)
95% confidence interval
0.82 to 0.93
Correlation with the time trend removed
+0.75

Sources

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Correlation does not imply causation. How the verdict is worked out.