CorrelateAI › Pairs
Atmospheric Methane (global) vs US Health Expenditure
Atmospheric Methane (global) and US Health Expenditure correlate at r = +0.78 over 24 years (2000–2023), p < 0.0001. With the time trend removed, r = -0.62. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.78, but once each series' time trend is removed it becomes -0.62. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.78
- p-value
- < 0.0001
- Years compared (n)
- 24 (2000–2023)
- 95% confidence interval
- 0.55 to 0.90
- Correlation with the time trend removed
- -0.62
Sources
- Atmospheric Methane (global) (ppb): NOAA GML. Global annual mean atmospheric methane from marine surface sites (NOAA GML).
- US Health Expenditure (% of GDP): World Bank. US Health Expenditure (World Bank indicator SH.XPD.CHEX.GD.ZS).
Related pairs
- Atmospheric Methane (global) vs US Natural Gas Consumption (r = +0.98)
- Atmospheric Methane (global) vs US GDP per Capita (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs Atmospheric Methane (global) (r = +0.98)
- Atmospheric Methane (global) vs US GDP (current US$) (r = +0.98)
- Atmospheric Methane (global) vs US Median Age (r = +0.97)
- Atmospheric Methane (global) vs US Population (r = +0.96)
Correlation does not imply causation. How the verdict is worked out.