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Arctic Sea Ice Extent (September) vs US Marriage Rate
Arctic Sea Ice Extent (September) and US Marriage Rate correlate at r = +0.90 over 43 years (1979–2022), p < 0.0001. With the time trend removed, r = +0.24. 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 0.24 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.90
- p-value
- < 0.0001
- Years compared (n)
- 43 (1979–2022)
- 95% confidence interval
- 0.82 to 0.94
- Correlation with the time trend removed
- +0.24
Sources
- Arctic Sea Ice Extent (September) (million km²): NSIDC. Mean Arctic sea ice extent in September, the yearly minimum (NSIDC Sea Ice Index).
- US Marriage Rate (per 1,000 people): Our World in Data. US Marriage Rate (Our World in Data: Crude marriage rate).
Related pairs
- US Marriage Rate vs US Adult Obesity (r = -0.98)
- US Marriage Rate vs US Resident Patent Applications (r = -0.95)
- US Marriage Rate vs US Mobile Subscriptions (r = -0.95)
- Atmospheric Methane (global) vs US Marriage Rate (r = -0.95)
- US Marriage Rate vs US Health Expenditure (r = -0.94)
- US Alcohol Consumption vs US Marriage Rate (r = -0.94)
Correlation does not imply causation. How the verdict is worked out.