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US Agriculture Value Added vs US CO₂ Emissions per Capita

US Agriculture Value Added and US CO₂ Emissions per Capita correlate at r = +0.58 over 25 years (1997–2021), p = 0.0022. With the time trend removed, r = -0.14. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.58 to -0.14 once the trend is removed.

Pearson r
+0.58
p-value
0.0022
Years compared (n)
25 (1997–2021)
95% confidence interval
0.25 to 0.80
Correlation with the time trend removed
-0.14

Sources

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