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Sydney Average Temperature vs US Exports

Sydney Average Temperature and US Exports correlate at r = +0.54 over 55 years (1970–2024), p < 0.0001. With the time trend removed, r = +0.15. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = < 0.0001) and the association survives trend removal (detrended r = 0.15). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
+0.54
p-value
< 0.0001
Years compared (n)
55 (1970–2024)
95% confidence interval
0.32 to 0.71
Correlation with the time trend removed
+0.15

Sources

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