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Climate1984–2025ppb (parts per billion)

Methane in the atmosphere

Annual global mean concentration of methane at marine surface sites, from NOAA, since 1984.

1,936 ppbWorld · 2025

NOAA Global Monitoring LaboratoryRetrieved: 2026-11-05
Saved data version: retrieved 2026-11-05, ID 2c4f8be893daWarehouse version at build: v45
Data coverage
  • World: 1984–2025; observations: 42; missing years: 0

Missing years are counted between the first and last observations. A missing value is not zero.

World

42 rows for World

Time range:
1,6001,6501,7001,7501,8001,8501,9001,9501984199020002010202020251,936
Year

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World

Period statistics

Calculated from the values shown in this view for the selected period. Statistics follow the active display mode.

World

1,645→1,936

Total change
+17.7 %
Annual growth (CAGR)
+0.4 %
Period
1984–2025

World: 1,645 (1984) → 1,936 (2025). Change of +17.7 % over 41 years. Compound annual growth rate (CAGR) of +0.4 % per year.

Compare on chart

Format:
Methane in the atmosphere — World
YearCountryValue
2025World1,936 ppb
2024World1,929 ppb
2023World1,921 ppb
2022World1,911 ppb
2021World1,895 ppb
2020World1,879 ppb
2019World1,867 ppb
2018World1,857 ppb
2017World1,850 ppb
2016World1,843 ppb
2015World1,834 ppb
2014World1,823 ppb
2013World1,813 ppb
2012World1,808 ppb
2011World1,803 ppb
2010World1,799 ppb
2009World1,794 ppb
2008World1,787 ppb
2007World1,781 ppb
2006World1,775 ppb
Source
NOAA Global Monitoring Laboratory
Licence
Public domain (U.S. Government work)
Published by source
—
Retrieved
2026-11-05
Indicator code in source
ch4_annmean_gl
Unit of measure
ppb (parts per billion)
Data version
v45

Cite

Longseries, “Methane in the atmosphere”. NOAA Global Monitoring Laboratory (ch4_annmean_gl), 1984–2025, World. Retrieved 2026-11-05. Public domain (U.S. Government work). Data version v45. Data SHA-256: 2c4f8be893da32a3b430595638c0885ef16bc8ab30abb0ec84be2f4e40bdb51a. https://longseries.com/en/d/climate-ch4-global/

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Latest values

1 place — sorted by value, highest first
Country
World20251,936 ppb1.9K ppb

About this series

Annual global mean CH₄ over marine surface sites, NOAA Global Monitoring Laboratory, 1984–.

Indicator definition

Methane in dry air, in parts per billion (ppb). Methane traps much more heat per molecule than CO₂ but stays in the air for about a decade.

How to read the data

From 1,645 ppb in 1984 to 1,936 ppb in 2025. Growth nearly stopped around 2000–2006 and resumed after 2007, fastest in 2020–2022.

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