2021年温室气体达到创纪录水平

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导致全球变暖的三种主要温室气体在2021年都达到了创纪录的水平。

这是根据世界气象组织(WMO)的数据得出的结论，该组织称，今年可能是自40年前有记录以来甲烷排放量增长最大的一年。

世界气象组织揭示，根据经验，甲烷、二氧化碳和一氧化二氮是与全球变暖有关的三种温室气体，由于人类活动，这三种气体的数量都在增加。

该研究称，仅2020年至2021年期间的增长就超过了前10年的年增长率。

世界气象组织秘书长塔拉斯说:“迫切需要采取行动减少温室气体排放，防止全球气温在未来进一步上升，这是一个巨大的挑战，也是极其必要的。”

研究人员表示，自1990年以来，温室气体排放对全球变暖的影响翻了一番。

具体来说，甲烷在这段时间内上升了262%，碳上升了149%，一氧化二氮上升了124%。

疫情后，化石燃料和水泥的生产以比以前更快的速度恢复，以弥补失去的时间，这对地球温度产生了有害影响，也是在短短一年内出现如此惊人增长的原因。

科学家们表示，在2010年，人类活动产生的排放中，48%最终进入大气，26%进入海洋，29%进入陆地。

生物质燃烧和化肥是一氧化二氮上升的原因，而由于湿地和稻田，预计甲烷的排放量将上升。

Taalas补充说:“主要的吸热气体浓度的持续上升，包括甲烷水平的创纪录加速，表明我们正朝着错误的方向前进。所需的改变在经济上是负担得起的，在技术上是可行的。时间不多了。”

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.”