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Sydney Average Temperature vs US Nuclear Power Generation

Sydney Average Temperature and US Nuclear Power Generation correlate at r = +0.52 over 61 years (1965–2025), p < 0.0001. With the time trend removed, r = -0.11. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.52 to -0.11 once the trend is removed.

Pearson r
+0.52
p-value
< 0.0001
Years compared (n)
61 (1965–2025)
95% confidence interval
0.31 to 0.68
Correlation with the time trend removed
-0.11

Sources

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