CorrelateAI › Pairs
US Cereal Yield vs US CO₂ Emissions per Capita
US Cereal Yield and US CO₂ Emissions per Capita correlate at r = -0.87 over 55 years (1970–2024), p < 0.0001. With the time trend removed, r = -0.17. 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 -0.17 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.87
- p-value
- < 0.0001
- Years compared (n)
- 55 (1970–2024)
- 95% confidence interval
- -0.92 to -0.79
- Correlation with the time trend removed
- -0.17
Sources
- US Cereal Yield (kg per hectare): World Bank. US Cereal Yield (World Bank indicator AG.YLD.CREL.KG).
- US CO₂ Emissions per Capita (tonnes): World Bank. US CO₂ Emissions per Capita (World Bank indicator EN.GHG.CO2.PC.CE.AR5).
Related pairs
- Atmospheric CO₂ (Mauna Loa) vs US Cereal Yield (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- US CO₂ Emissions per Capita vs US CO₂ Emissions per Capita (r = +0.97)
- US Cereal Yield vs US GDP per Capita (r = +0.97)
- US Renewable Energy Share vs US CO₂ Emissions per Capita (r = -0.97)
- US Cereal Yield vs US GDP (current US$) (r = +0.96)
Correlation does not imply causation. How the verdict is worked out.