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US Renewable Energy Share vs US Birth Rate

US Renewable Energy Share and US Birth Rate correlate at r = -0.87 over 60 years (1965–2024), p < 0.0001. With the time trend removed, r = -0.39. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from -0.87 to -0.39 once the trend is removed.

Pearson r
-0.87
p-value
< 0.0001
Years compared (n)
60 (1965–2024)
95% confidence interval
-0.92 to -0.79
Correlation with the time trend removed
-0.39

Sources

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