メタン排出は、農業や工業メタン生産など、人間の活動に起因するものです。
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 日本 | 36,979.3 | 33,316.6 | 31,415.4 | 29,737.1 | 29,682.1 | 29,530.7 | 29,221.8 | 28,663.1 | 27,895.7 | 27,574.6 | 27,414.2 | 26,580.9 | 26,155.3 | 25,783.3 |
| フランス | 70,641.4 | 72,950.3 | 69,350.3 | 67,692.9 | 65,304.8 | 64,723.3 | 64,633.1 | 63,495.1 | 62,911.3 | 61,984.2 | 61,085.4 | 60,348.2 | 59,456.6 | 58,451.5 |
| ドイツ | 99,831.4 | 74,994.2 | 64,633.6 | 57,837.4 | 55,937.5 | 55,341.9 | 55,084.4 | 53,386.3 | 52,526.9 | 51,599.1 | 51,150.7 | 49,595.4 | 48,449.9 | 46,917.6 |
| イタリア | 48,747.7 | 50,671.8 | 49,371.9 | 48,516.8 | 46,126.9 | 46,831.7 | 44,717.9 | 43,721.6 | 44,435.1 | 44,267.6 | 44,362.3 | 44,521.7 | 44,260.3 | 43,888.7 |
| 英国 | 111,251.8 | 109,898.7 | 89,375.3 | 64,549.4 | 60,590.3 | 58,300.5 | 54,458.0 | 51,997.1 | 51,485.0 | 53,065.0 | 52,798.1 | 52,228.2 | 51,502.8 | 50,415.7 |
| カナダ | 68,724.0 | 84,876.4 | 91,471.9 | 86,175.3 | 87,322.1 | 87,736.7 | 90,694.0 | 93,075.2 | 93,503.2 | 95,780.5 | 100,099.9 | 103,366.5 | 103,220.2 | 100,143.4 |
| アメリカ合衆国 | 672,858.3 | 641,918.4 | 628,705.7 | 652,865.7 | 658,406.0 | 670,527.7 | 673,728.7 | 699,258.7 | 701,609.4 | 683,241.8 | 699,987.1 | 743,778.7 | 784,496.8 | 748,241.4 |