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US CO₂ Emissions per Capita vs US Population

US CO₂ Emissions per Capita and US Population correlate at r = -0.37 over 65 years (1960–2024), p = 0.0022. With the time trend removed, r = -0.18. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.0022) and the association survives trend removal (detrended r = -0.18). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.37
p-value
0.0022
Years compared (n)
65 (1960–2024)
95% confidence interval
-0.57 to -0.14
Correlation with the time trend removed
-0.18

Sources

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