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US Adult Obesity vs US Solar Energy Consumption

US Adult Obesity and US Solar Energy Consumption correlate at r = +0.59 over 42 years (1983–2024), p < 0.0001. With the time trend removed, r = -0.93. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is 0.59, but once each series' time trend is removed it becomes -0.93. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
+0.59
p-value
< 0.0001
Years compared (n)
42 (1983–2024)
95% confidence interval
0.35 to 0.76
Correlation with the time trend removed
-0.93

Sources

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