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US Energy Use per Capita vs US Forest Area

US Energy Use per Capita and US Forest Area correlate at r = -0.88 over 34 years (1990–2023), p < 0.0001. With the time trend removed, r = -0.38. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from -0.88 to -0.38 once the trend is removed.

Pearson r
-0.88
p-value
< 0.0001
Years compared (n)
34 (1990–2023)
95% confidence interval
-0.94 to -0.77
Correlation with the time trend removed
-0.38

Sources

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