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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ボツワナ | 5,533.5 | 5,314.5 | 3,701.7 | 9,054.0 | 11,140.5 | 5,189.4 | 4,618.6 | 3,132.5 | 2,892.0 | 2,468.0 | 3,844.7 | 2,793.7 | 1,887.4 | 3,434.5 |
| レソト | 986.2 | 1,174.1 | 1,144.6 | 1,090.0 | 1,112.3 | 1,115.1 | 1,047.2 | 1,032.0 | 1,018.4 | 1,000.7 | 1,089.1 | 990.4 | 909.9 | 998.8 |
| ナミビア | 4,416.5 | 4,932.6 | 4,992.8 | 5,301.7 | 7,567.9 | 8,292.7 | 4,830.8 | 4,449.7 | 4,333.2 | 4,686.0 | 4,622.9 | 4,208.2 | 3,812.5 | 5,335.8 |
| 南アフリカ | 59,433.2 | 60,592.6 | 66,518.0 | 71,523.7 | 71,549.0 | 73,346.4 | 73,273.9 | 74,095.3 | 73,429.6 | 72,997.2 | 74,315.5 | 73,611.4 | 73,420.6 | 72,213.2 |
| エスワティニ | 1,262.5 | 1,219.2 | 1,243.5 | 1,271.6 | 1,271.5 | 1,284.4 | 1,298.5 | 1,304.2 | 1,299.4 | 1,297.5 | 1,291.9 | 1,307.3 | 1,338.5 | 1,326.0 |