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US Air Passengers Carried vs US Forest Area
US Air Passengers Carried and US Forest Area correlate at r = +0.73 over 34 years (1990–2023), p < 0.0001. With the time trend removed, r = +0.06. 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 0.06 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.73
- p-value
- < 0.0001
- Years compared (n)
- 34 (1990–2023)
- 95% confidence interval
- 0.52 to 0.86
- Correlation with the time trend removed
- +0.06
Sources
- US Air Passengers Carried (passengers): Our World in Data. US Air Passengers Carried (Our World in Data: Air transport, passengers carried).
- 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.