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US Air Passengers Carried vs US Renewable Energy Share

US Air Passengers Carried and US Renewable Energy Share correlate at r = +0.75 over 54 years (1970–2023), p < 0.0001. With the time trend removed, r = -0.42. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is 0.75, but once each series' time trend is removed it becomes -0.42. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
+0.75
p-value
< 0.0001
Years compared (n)
54 (1970–2023)
95% confidence interval
0.60 to 0.85
Correlation with the time trend removed
-0.42

Sources

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Correlation does not imply causation. How the verdict is worked out.