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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| エクアドル | 18,403.8 | 22,730.8 | 27,862.2 | 28,740.6 | 29,008.0 | 28,941.0 | 29,429.2 | 29,050.1 | 28,218.6 | 28,483.3 | 28,263.5 | 27,638.2 | 28,293.9 | 27,460.3 |
| ベネズエラ（ボリバル共和国） | 172,411.8 | 242,598.6 | 243,045.6 | 224,439.2 | 226,086.8 | 238,999.5 | 241,854.0 | 238,110.9 | 230,670.7 | 215,172.8 | 189,629.1 | 157,687.6 | 127,823.4 | 97,594.2 |
| アルジェリア | 54,129.6 | 73,799.2 | 86,366.4 | 83,875.3 | 81,937.3 | 85,112.1 | 85,057.6 | 88,114.4 | 88,228.6 | 90,856.9 | 90,256.3 | 91,576.9 | 90,220.8 | 86,543.9 |
| イラン | 104,156.2 | 140,056.1 | 161,968.7 | 172,450.1 | 173,221.5 | 163,663.9 | 159,771.1 | 163,734.3 | 168,726.4 | 196,323.8 | 205,842.5 | 205,272.6 | 180,210.5 | 174,642.0 |
| イラク | 35,212.7 | 46,930.3 | 40,623.5 | 52,415.3 | 57,147.4 | 65,016.0 | 67,234.6 | 70,951.4 | 79,617.4 | 88,097.4 | 89,081.2 | 90,103.3 | 93,815.3 | 85,917.0 |
| クウェート | 9,798.5 | 17,596.4 | 21,140.8 | 20,409.9 | 22,289.4 | 23,552.9 | 24,532.5 | 24,329.7 | 24,140.1 | 25,717.8 | 24,140.4 | 24,484.2 | 24,284.1 | 22,640.6 |
| リビア | 50,200.1 | 56,058.4 | 64,027.5 | 63,107.2 | 24,771.9 | 62,052.3 | 43,830.0 | 28,337.4 | 26,495.3 | 25,728.1 | 42,299.7 | 49,075.3 | 53,112.8 | 24,033.1 |
| カタール | 3,567.8 | 11,552.5 | 14,719.5 | 25,065.9 | 28,367.3 | 30,353.6 | 31,227.9 | 30,285.1 | 30,232.8 | 30,740.2 | 30,710.2 | 30,823.2 | 30,718.7 | 30,708.4 |
| サウジアラビア | 62,742.5 | 79,674.6 | 90,467.5 | 86,848.3 | 94,802.9 | 96,900.9 | 96,953.4 | 97,861.1 | 100,910.6 | 105,652.7 | 103,780.2 | 106,592.3 | 104,821.5 | 102,630.5 |
| アラブ首長国連邦 | 21,809.9 | 27,691.0 | 36,907.4 | 41,466.8 | 44,911.7 | 47,042.9 | 49,435.2 | 50,171.8 | 53,345.2 | 55,510.7 | 54,622.8 | 55,329.9 | 58,152.4 | 56,944.7 |
| アンゴラ | 21,316.8 | 27,459.3 | 33,940.2 | 38,100.5 | 37,827.8 | 36,964.2 | 37,028.6 | 36,190.3 | 38,455.6 | 38,558.3 | 37,896.8 | 34,015.6 | 35,023.5 | 32,703.2 |
| コンゴ | 5,723.4 | 8,082.1 | 8,441.6 | 9,991.0 | 9,705.0 | 9,028.7 | 8,362.2 | 8,142.3 | 7,983.8 | 7,720.9 | 8,476.7 | 10,161.1 | 10,589.1 | 9,957.3 |
| 赤道ギニア | 96.5 | 4,654.2 | 7,960.3 | 6,642.0 | 5,940.4 | 5,811.9 | 5,523.3 | 7,559.0 | 6,904.1 | 6,226.9 | 5,634.8 | 5,480.1 | 5,028.4 | 4,778.3 |
| ガボン | 8,240.9 | 9,931.1 | 9,595.7 | 8,736.6 | 8,589.2 | 8,329.3 | 8,021.2 | 8,140.6 | 8,249.9 | 8,253.5 | 7,484.3 | 7,068.5 | 7,821.9 | 7,451.6 |
| ナイジェリア | 140,698.3 | 130,181.9 | 141,851.7 | 143,412.4 | 145,721.2 | 146,252.2 | 143,561.0 | 144,981.8 | 144,436.1 | 145,045.8 | 148,911.7 | 151,730.1 | 155,074.8 | 151,059.8 |