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US Dollar to Japanese Yen vs Atmospheric CO₂ (Mauna Loa)
US Dollar to Japanese Yen and Atmospheric CO₂ (Mauna Loa) correlate at r = +0.40 over 27 years (1999–2025), p = 0.040. With the time trend removed, r = +0.75. Holds up after detrending.
Verdict: Holds up after detrending. Statistically significant (p = 0.040) and the association survives trend removal (detrended r = 0.75). Correlation still isn't causation, but this one isn't an obvious artifact.
- Pearson r
- +0.40
- p-value
- 0.040
- Years compared (n)
- 27 (1999–2025)
- 95% confidence interval
- 0.02 to 0.68
- Correlation with the time trend removed
- +0.75
Sources
- US Dollar to Japanese Yen (JPY per USD): Frankfurter (ECB). Annual mean US Dollar to Japanese Yen exchange rate (European Central Bank reference rates).
- Atmospheric CO₂ (Mauna Loa) (ppm): NOAA GML. Annual mean atmospheric carbon dioxide measured at Mauna Loa Observatory, Hawaii (NOAA GML).
Related pairs
- Atmospheric CO₂ (Mauna Loa) vs US GDP per Capita (r = +0.99)
- Atmospheric CO₂ (Mauna Loa) vs US Population (r = +0.99)
- Atmospheric CO₂ (Mauna Loa) vs US GDP (current US$) (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Cereal Yield (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs Atmospheric Methane (global) (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Adult Obesity (r = +0.98)
Correlation does not imply causation. How the verdict is worked out.