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Global Temperature Anomaly vs US Cereal Yield
Global Temperature Anomaly and US Cereal Yield correlate at r = +0.94 over 64 years (1961–2024), 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
- +0.94
- p-value
- < 0.0001
- Years compared (n)
- 64 (1961–2024)
- 95% confidence interval
- 0.91 to 0.97
- Correlation with the time trend removed
- +0.28
Sources
- Global Temperature Anomaly (°C vs 1901–2000): NOAA NCEI. Annual global land and ocean surface temperature departure from the 1901–2000 average (NOAA NCEI).
- US Cereal Yield (kg per hectare): World Bank. US Cereal Yield (World Bank indicator AG.YLD.CREL.KG).
Related pairs
- Atmospheric CO₂ (Mauna Loa) vs US Cereal Yield (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- US Cereal Yield vs US GDP per Capita (r = +0.97)
- Atmospheric CO₂ (Mauna Loa) vs Global Temperature Anomaly (r = +0.97)
- Global Temperature Anomaly vs US GDP 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.