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US Median Age vs US CO₂ Emissions per Capita
US Median Age and US CO₂ Emissions per Capita correlate at r = -0.82 over 54 years (1970–2023), p < 0.0001. With the time trend removed, r = +0.68. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is -0.82, but once each series' time trend is removed it becomes 0.68. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- -0.82
- p-value
- < 0.0001
- Years compared (n)
- 54 (1970–2023)
- 95% confidence interval
- -0.89 to -0.71
- Correlation with the time trend removed
- +0.68
Sources
- US Median Age (years): Our World in Data. US Median Age (Our World in Data: Median age).
- US CO₂ Emissions per Capita (tonnes): World Bank. US CO₂ Emissions per Capita (World Bank indicator EN.GHG.CO2.PC.CE.AR5).
Related pairs
- US Median Age vs US Adult Obesity (r = +0.99)
- US Median Age vs US Population (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Median Age (r = +0.97)
- US Median Age vs US Internet Users (r = +0.97)
- US Internet Usage vs US Median Age (r = +0.97)
- US CO₂ Emissions per Capita vs US CO₂ Emissions per Capita (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.