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US Annual CO₂ Emissions vs US Adult Obesity

US Annual CO₂ Emissions and US Adult Obesity correlate at r = +0.45 over 45 years (1980–2024), p = 0.0017. With the time trend removed, r = +0.77. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.0017) and the association survives trend removal (detrended r = 0.77). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
+0.45
p-value
0.0017
Years compared (n)
45 (1980–2024)
95% confidence interval
0.19 to 0.66
Correlation with the time trend removed
+0.77

Sources

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