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Atmospheric CO₂ (Mauna Loa) vs US Wind Power Generation

Atmospheric CO₂ (Mauna Loa) and US Wind Power Generation correlate at r = +0.91 over 43 years (1983–2025), p < 0.0001. With the time trend removed, r = +0.95. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = < 0.0001) and the association survives trend removal (detrended r = 0.95). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
+0.91
p-value
< 0.0001
Years compared (n)
43 (1983–2025)
95% confidence interval
0.84 to 0.95
Correlation with the time trend removed
+0.95

Sources

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