CorrelateAI › Pairs
Sunspot Number vs US Forest Area
Sunspot Number and US Forest Area correlate at r = -0.44 over 34 years (1990–2023), p = 0.0099. With the time trend removed, r = -0.17. Holds up after detrending.
Verdict: Holds up after detrending. Statistically significant (p = 0.0099) and the association survives trend removal (detrended r = -0.17). Correlation still isn't causation, but this one isn't an obvious artifact.
- Pearson r
- -0.44
- p-value
- 0.0099
- Years compared (n)
- 34 (1990–2023)
- 95% confidence interval
- -0.67 to -0.11
- Correlation with the time trend removed
- -0.17
Sources
- Sunspot Number (yearly mean): SILSO. Yearly mean total sunspot number (SILSO, Royal Observatory of Belgium).
- US Forest Area (% of land): World Bank. US Forest Area (World Bank indicator AG.LND.FRST.ZS).
Related pairs
- US Forest Area vs US Mobile Subscriptions (r = +0.98)
- US Forest Area vs US Resident Patent Applications (r = +0.97)
- US Adult Obesity vs US Forest Area (r = +0.97)
- US Forest Area vs US Population (r = +0.97)
- Atmospheric CO₂ (Mauna Loa) vs US Forest Area (r = +0.95)
- US Adolescent Birth Rate vs US Forest Area (r = -0.94)
Correlation does not imply causation. How the verdict is worked out.