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US CO₂ Emissions per Capita vs US Forest Area
US CO₂ Emissions per Capita and US Forest Area correlate at r = -0.90 over 34 years (1990–2023), p < 0.0001. With the time trend removed, r = -0.28. Likely spurious (shared time trend).
Verdict: Likely spurious (shared time trend). Both series mostly just trend over time. After removing that trend the correlation collapses to -0.28 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.90
- p-value
- < 0.0001
- Years compared (n)
- 34 (1990–2023)
- 95% confidence interval
- -0.95 to -0.81
- Correlation with the time trend removed
- -0.28
Sources
- US CO₂ Emissions per Capita (tonnes): World Bank. US CO₂ Emissions per Capita (World Bank indicator EN.GHG.CO2.PC.CE.AR5).
- US Forest Area (% of land): World Bank. US Forest Area (World Bank indicator AG.LND.FRST.ZS).
Related pairs
- US Forest Area vs US Mobile Subscriptions (r = +0.98)
- US Forest Area vs US Resident Patent Applications (r = +0.97)
- US Adult Obesity vs US Forest Area (r = +0.97)
- US CO₂ Emissions per Capita vs US CO₂ Emissions per Capita (r = +0.97)
- US Renewable Energy Share vs US CO₂ Emissions per Capita (r = -0.97)
- US Forest Area vs US Population (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.