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US Annual CO₂ Emissions vs US Cereal Yield
US Annual CO₂ Emissions and US Cereal Yield correlate at r = +0.67 over 64 years (1961–2024), p < 0.0001. With the time trend removed, r = -0.34. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.67, but once each series' time trend is removed it becomes -0.34. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.67
- p-value
- < 0.0001
- Years compared (n)
- 64 (1961–2024)
- 95% confidence interval
- 0.51 to 0.79
- Correlation with the time trend removed
- -0.34
Sources
- US Annual CO₂ Emissions (tonnes): Our World in Data. US Annual CO₂ Emissions (Our World in Data: Annual CO₂ emissions).
- 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)
- US Cereal Yield vs US GDP (current US$) (r = +0.96)
- US Adult Obesity vs US Cereal Yield (r = +0.95)
- US Median Age vs US Cereal Yield (r = +0.95)
Correlation does not imply causation. How the verdict is worked out.