Trends in Global Atmospheric Methane (CH₄)

  • Released Thursday, August 11, 2022
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Timeplot of global atmospheric methane (CH4) showing the full NOAA record (September 1983-March 2022). This version is created with a dark background.


Timeplot of global atmospheric methane (CH4) showing the full NOAA record (September 1983-March 2022). This version is created with a light background.


Data Sources:

  • Trends in Athmospheric Methane by NOAA. The visualizations featured on this page utilize the complete record from the Globally averaged marine surface monthly mean data for the period July 1983-March 2022 (accessed: August 4, 2022). Within the data record the globally averaged monthly mean values are centered on the middle of each month and are represented in the visualization as the jagged/wavy Average line. The continuous line shows the long-term Trend, where the average seasonal cycle has been removed.

    Citation: Ed Dlugokencky, NOAA/GML (https://gml.noaa.gov/ccgg/trends_ch4/)

    Citation: Dlugokencky, E. J., L. P. Steele, P. M. Lang, and K. A. Masarie (1994), The growth rate and distribution of atmospheric methane, J. Geophys. Res., 99, 17,021– 17,043, doi:10.1029/94JD01245.

Credits

Please give credit for this item to:
NASA's Scientific Visualization Studio

This page was originally published on Thursday, August 11, 2022.
This page was last updated on Sunday, March 9, 2025 at 10:55 PM EDT.

Related papers

Dlugokencky, E. J., L. P. Steele, P. M. Lang and K. A. Masarie, (1994), The growth rate and distribution of atmospheric methane, Journal of Geophysical Research, 99, D8, 17, doi:10.1029/94JD01245

Dlugokencky, E. J., L. P. Steele, P. M. Lang and K. A. Masarie, (1994), The growth rate and distribution of atmospheric methane, Journal of Geophysical Research, 99, D8, 17, doi:10.1029/94JD01245

Datasets used

Note: While we identify the data sets used on this page, we do not store any further details, nor the data sets themselves on our site.