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Arctic Sea Ice Extent (September) vs US Coal Consumption
Arctic Sea Ice Extent (September) and US Coal Consumption correlate at r = +0.37 over 47 years (1979–2025), p = 0.0097. With the time trend removed, r = -0.04. Holds up after detrending.
Verdict: Holds up after detrending. Statistically significant (p = 0.0097) and the association survives trend removal (detrended r = -0.04). Correlation still isn't causation, but this one isn't an obvious artifact.
- Pearson r
- +0.37
- p-value
- 0.0097
- Years compared (n)
- 47 (1979–2025)
- 95% confidence interval
- 0.10 to 0.60
- Correlation with the time trend removed
- -0.04
Sources
- Arctic Sea Ice Extent (September) (million km²): NSIDC. Mean Arctic sea ice extent in September, the yearly minimum (NSIDC Sea Ice Index).
- US Coal Consumption (TWh): Our World in Data. US Coal Consumption (Our World in Data: Coal).
Related pairs
- US Coal Consumption vs US R&D Expenditure (r = -0.93)
- Arctic Sea Ice Extent (September) vs US Mobile Subscriptions (r = -0.92)
- Arctic Sea Ice Extent (September) vs US Resident Patent Applications (r = -0.91)
- Arctic Sea Ice Extent (September) vs US Adult Obesity (r = -0.91)
- Arctic Sea Ice Extent (September) vs US Population (r = -0.90)
- US Coal Consumption vs US Wind Power Generation (r = -0.90)
Correlation does not imply causation. How the verdict is worked out.