2021年溫室氣體達到創紀錄水平

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導致全球變暖的三種主要溫室氣體在2021年都達到了創紀錄的水平。

這是根據世界氣象組織(WMO)的數據得出的結論，該組織稱，今年可能是自40年前有記錄以來甲烷排放量增長最大的一年。

世界氣象組織揭示，根據經驗，甲烷、二氧化碳和一氧化二氮是與全球變暖有關的三種溫室氣體，由於人類活動，這三種氣體的數量都在增加。

該研究稱，僅2020年至2021年期間的增長就超過了前10年的年增長率。

世界氣象組織秘書長塔拉斯說:「迫切需要採取行動減少溫室氣體排放，防止全球氣溫在未來進一步上升，這是一個巨大的挑戰，也是極其必要的。」

研究人員表示，自1990年以來，溫室氣體排放對全球變暖的影響翻了一番。

具體來說，甲烷在這段時間內上升了262%，碳上升了149%，一氧化二氮上升了124%。

疫情後，化石燃料和水泥的生產以比以前更快的速度恢復，以彌補失去的時間，這對地球溫度產生了有害影響，也是在短短一年內出現如此驚人增長的原因。

科學家們表示，在2010年，人類活動產生的排放中，48%最終進入大氣，26%進入海洋，29%進入陸地。

生物質燃燒和化肥是一氧化二氮上升的原因，而由於濕地和稻田，預計甲烷的排放量將上升。

Taalas補充說:「主要的吸熱氣體濃度的持續上升，包括甲烷水平的創紀錄加速，表明我們正朝着錯誤的方向前進。所需的改變在經濟上是負擔得起的，在技術上是可行的。時間不多了。」

原文：

『Greenhouse Gases Reached Record Levels in 2021』

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The three main greenhouse (GHG) gases causing global warming all reached record levels in 2021.

That』s according to the World Meteorological Organization (WMO), which claims that this year could represent the largest annual increase in methane emissions since records began four decades ago.

methane, carbon dioxide and nitrous oxide are the three GHG gases linked empirically with global warming – with the WMO revealing that all have increased due to human actions.

The increase between 2020 and 2021 alone was larger than the yearly growth rate of the previous decade, the study claims.

「[There is an] enormous challenge – and the vital necessity – of urgent action to cut greenhouse gas emissions and prevent global temperatures from rising even further in the future,」 said Secretary General of the WMO, Petteri Taalas.

Since 1990, the impact of GHG emissions on global warming has doubled, the researchers say.

Specifically for each gas, methane rose 262% in this time, carbon by 149% and nitrous oxide by 124%.

Fossil fuel and cement production resumed after the pandemic at even larger rates than previously to catch up with lost time, which has had a detrimental impact on the temperature of the Earth and is the reason for such a staggering increase in just a year.

The scientists state that during the 2010s, 48% of the emissions generated by human actions ended up in the atmosphere, 26% in the ocean and 29% on land.

Biomass burning and fertilisers are the reason for the uptick in nitrous oxide, with methane predicted to be on the rise due to wetlands and rice paddies.

Taalas added: 「The continuing rise in concentrations of the main heat-trapping gases, including the record acceleration in methane levels, shows that we are heading in the wrong direction. The needed changes are economically affordable and technically possible. Time is running out.」