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Methane (CH₄) in 2007 (global mean)
Annual mean1,781.4 ppb
vs previous year+6.4 ppb
Rank of increase25 / 41
Max − min within year17.0 ppb
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 1,779.2 ppb | -0.4 |
| Feb | 1,778.6 ppb | -0.9 |
| Mar | 1,780.2 ppb | +2.9 |
| Apr | 1,781.0 ppb | +5.0 |
| May | 1,779.3 ppb | +4.4 |
| Jun | 1,775.5 ppb | +6.3 |
| Jul | 1,772.7 ppb | +8.5 |
| Aug | 1,777.4 ppb | +10.1 |
| Sep | 1,785.9 ppb | +11.3 |
| Oct | 1,789.7 ppb | +11.4 |
| Nov | 1,789.3 ppb | +10.2 |
| Dec | 1,788.0 ppb | +8.1 |
+1.4 ppb
+4.6 ppb
-0.2 ppb
-2.8 ppb
+0.7 ppb
+6.4 ppb
+5.7 ppb
+6.5 ppb
+5.4 ppb
+4.1 ppb
+5.1 ppb
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.