CorrelateAI › Pairs
Arctic Sea Ice Extent (September) vs US Renewable Energy Share
Arctic Sea Ice Extent (September) and US Renewable Energy Share correlate at r = -0.79 over 47 years (1979–2025), p < 0.0001. With the time trend removed, r = +0.02. 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 0.02 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.79
- p-value
- < 0.0001
- Years compared (n)
- 47 (1979–2025)
- 95% confidence interval
- -0.88 to -0.65
- Correlation with the time trend removed
- +0.02
Sources
- Arctic Sea Ice Extent (September) (million km²): NSIDC. Mean Arctic sea ice extent in September, the yearly minimum (NSIDC Sea Ice Index).
- US Renewable Energy Share (% of primary energy): Our World in Data. US Renewable Energy Share (Our World in Data: Renewables).
Related pairs
- US Renewable Energy Share vs US Federal Debt Outstanding (r = +0.99)
- US Renewable Energy Share vs US Wind Power Generation (r = +0.99)
- US Renewable Energy Share vs US CO₂ Emissions per Capita (r = -0.97)
- US Renewable Energy Share vs US Population Aged 65+ (r = +0.96)
- US Renewable Energy Share vs US GDP (current US$) (r = +0.95)
- US Renewable Energy Share vs US GDP per Capita (r = +0.94)
Correlation does not imply causation. How the verdict is worked out.