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US Wind Power Generation vs US Birth Rate

US Wind Power Generation and US Birth Rate correlate at r = -0.91 over 42 years (1983–2024), p < 0.0001. With the time trend removed, r = -0.56. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = < 0.0001) and the association survives trend removal (detrended r = -0.56). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.91
p-value
< 0.0001
Years compared (n)
42 (1983–2024)
95% confidence interval
-0.95 to -0.83
Correlation with the time trend removed
-0.56

Sources

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