Climate TrendsMethane (CH₄): global average concentration
Latest month1,939.4 ppbMay 2026
vs 12 months earlier+6.3 ppb
vs 1984×1.181984→2025
Largest yearly rise2022+16.2 ppb
Yearly increase
-1.9 ppb
+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
+5.3 ppb
+9.2 ppb
+11.6 ppb
+9.0 ppb
+6.4 ppb
+7.8 ppb
+9.2 ppb
+12.2 ppb
+16.0 ppb
+16.2 ppb
+10.4 ppb
+8.0 ppb
+6.5 ppb
Annual means
| Year | Annual mean | Change |
|---|---|---|
| 2025 | 1,936.0 ppb | +6.5 |
| 2024 | 1,929.5 ppb | +8.0 |
| 2023 | 1,921.5 ppb | +10.4 |
| 2022 | 1,911.1 ppb | +16.2 |
| 2021 | 1,894.9 ppb | +16.0 |
| 2020 | 1,878.9 ppb | +12.2 |
| 2019 | 1,866.7 ppb | +9.2 |
| 2018 | 1,857.4 ppb | +7.8 |
| 2017 | 1,849.7 ppb | +6.4 |
| 2016 | 1,843.2 ppb | +9.0 |
| 2015 | 1,834.3 ppb | +11.6 |
| 2014 | 1,822.7 ppb | +9.2 |
| 2013 | 1,813.5 ppb | +5.3 |
| 2012 | 1,808.1 ppb | +5.1 |
| 2011 | 1,803.1 ppb | +4.1 |
| 2010 | 1,799.0 ppb | +5.4 |
| 2009 | 1,793.5 ppb | +6.5 |
| 2008 | 1,787.1 ppb | +5.7 |
| 2007 | 1,781.4 ppb | +6.4 |
| 2006 | 1,775.0 ppb | +0.7 |
| 2005 | 1,774.3 ppb | -2.8 |
| 2004 | 1,777.1 ppb | -0.2 |
| 2003 | 1,777.3 ppb | +4.6 |
| 2002 | 1,772.7 ppb | +1.4 |
| 2001 | 1,771.3 ppb | -1.9 |
| 2000 | 1,773.2 ppb | +0.9 |
| 1999 | 1,772.3 ppb | +6.7 |
| 1998 | 1,765.7 ppb | +11.1 |
| 1997 | 1,754.6 ppb | +3.3 |
| 1996 | 1,751.3 ppb | +2.4 |
| 1995 | 1,748.9 ppb | +6.7 |
| 1994 | 1,742.2 ppb | +5.6 |
| 1993 | 1,736.5 ppb | +1.1 |
| 1992 | 1,735.5 ppb | +10.5 |
| 1991 | 1,725.0 ppb | +10.4 |
| 1990 | 1,714.5 ppb | +9.9 |
| 1989 | 1,704.6 ppb | +11.3 |
| 1988 | 1,693.3 ppb | +10.5 |
| 1987 | 1,682.8 ppb | +12.6 |
| 1986 | 1,670.2 ppb | +12.8 |
| 1985 | 1,657.4 ppb | +12.4 |
| 1984 | 1,645.0 ppb | – |
NOAA GML global mean from the marine surface network (monthly). Recent values are preliminary.