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Arctic Sea Ice Extent (September) vs US CO₂ Emissions per Capita
Arctic Sea Ice Extent (September) and US CO₂ Emissions per Capita correlate at r = +0.79 over 46 years (1979–2024), p < 0.0001. With the time trend removed, r = +0.14. 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 0.14 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.79
- p-value
- < 0.0001
- Years compared (n)
- 46 (1979–2024)
- 95% confidence interval
- 0.65 to 0.88
- Correlation with the time trend removed
- +0.14
Sources
- Arctic Sea Ice Extent (September) (million km²): NSIDC. Mean Arctic sea ice extent in September, the yearly minimum (NSIDC Sea Ice Index).
- 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 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 Wind Power Generation vs US CO₂ Emissions per Capita (r = -0.95)
- US CO₂ Emissions per Capita vs US Population Aged 65+ (r = -0.94)
- US Federal Debt Outstanding vs US CO₂ Emissions per Capita (r = -0.94)
- US CO₂ Emissions per Capita vs US Health Expenditure (r = -0.93)
Correlation does not imply causation. How the verdict is worked out.