CorrelateAI › Pairs
Atmospheric Methane (global) vs US Forest Area
Atmospheric Methane (global) and US Forest Area correlate at r = +0.87 over 34 years (1990–2023), p < 0.0001. With the time trend removed, r = -0.72. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.87, but once each series' time trend is removed it becomes -0.72. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.87
- p-value
- < 0.0001
- Years compared (n)
- 34 (1990–2023)
- 95% confidence interval
- 0.75 to 0.93
- Correlation with the time trend removed
- -0.72
Sources
- Atmospheric Methane (global) (ppb): NOAA GML. Global annual mean atmospheric methane from marine surface sites (NOAA GML).
- US Forest Area (% of land): World Bank. US Forest Area (World Bank indicator AG.LND.FRST.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)
- US Forest Area vs US Mobile Subscriptions (r = +0.98)
- Atmospheric Methane (global) vs US GDP (current US$) (r = +0.98)
- US Forest Area vs US Resident Patent Applications (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.