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Atmospheric CO₂ (Mauna Loa) vs US Marriage Rate
Atmospheric CO₂ (Mauna Loa) and US Marriage Rate correlate at r = -0.85 over 63 years (1959–2022), p < 0.0001. With the time trend removed, r = -0.77. Holds up after detrending.
Verdict: Holds up after detrending. Statistically significant (p = < 0.0001) and the association survives trend removal (detrended r = -0.77). Correlation still isn't causation, but this one isn't an obvious artifact.
- Pearson r
- -0.85
- p-value
- < 0.0001
- Years compared (n)
- 63 (1959–2022)
- 95% confidence interval
- -0.91 to -0.76
- Correlation with the time trend removed
- -0.77
Sources
- Atmospheric CO₂ (Mauna Loa) (ppm): NOAA GML. Annual mean atmospheric carbon dioxide measured at Mauna Loa Observatory, Hawaii (NOAA GML).
- US Marriage Rate (per 1,000 people): Our World in Data. US Marriage Rate (Our World in Data: Crude marriage rate).
Related pairs
- Atmospheric CO₂ (Mauna Loa) vs US GDP per Capita (r = +0.99)
- Atmospheric CO₂ (Mauna Loa) vs US Population (r = +0.99)
- US Marriage Rate vs US Adult Obesity (r = -0.98)
- 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)
Correlation does not imply causation. How the verdict is worked out.