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US Annual CO₂ Emissions vs US Mobile Subscriptions

US Annual CO₂ Emissions and US Mobile Subscriptions correlate at r = +0.42 over 50 years (1960–2024), p = 0.0024. With the time trend removed, r = -0.41. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is 0.42, but once each series' time trend is removed it becomes -0.41. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
+0.42
p-value
0.0024
Years compared (n)
50 (1960–2024)
95% confidence interval
0.16 to 0.63
Correlation with the time trend removed
-0.41

Sources

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