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世界氣象組織溫室氣體公報WMO GREENHOUSE GAS BULLETIN 世界氣象組織溫室氣體公報WMO GREENHOUSE GAS BULLETIN

世界氣象組織溫室氣體公報WMO GREENHOUSE GAS BULLETIN

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  • 更新時間:2021-09-21
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大氣二氧化碳(CO 2)在過去70年的增長率是末次冰期結(jié)束時的近100倍。就直接觀測和代理觀測而言,這種大氣中二氧化碳含量的突然變化以前從未見過。左邊的圖顯示了上一次冰期結(jié)束時的二氧化碳大氣含量,右邊的圖顯示了最近的大氣二氧化碳含量[1]。左圖上的灰色區(qū)域看起來像一條垂直線,與右圖所描繪的現(xiàn)代70年的相似時期相對應(yīng)。大氣中二氧化碳和其他溫室氣體(ghg)含量的迅速增加有可能引發(fā)氣候系統(tǒng)的不可預(yù)測的變化,因為強烈的正反饋,導(dǎo)致嚴重的生態(tài)和經(jīng)濟破壞。氣象組織全球大氣觀測(GAW)方案跟蹤溫室氣體水平的變化,并通過檢測這些氣候變化的主要大氣驅(qū)動因素的變化,作為一個預(yù)警系統(tǒng)。

The rate of increase of atmospheric carbon dioxide (CO 2 ) over the past 70years is nearly 100 times larger than that at the end of the last ice age. As far as direct and proxy observations can tell, such abrupt changes in the atmospheric levels of CO 2 have never before been seen. The figure on the left shows the CO 2 atmospheric content at the end of the last ice age, and the figure on the right shows recent atmospheric CO 2 content [1]. The thin grey area on the left figure, which looks like a vertical line, corresponds to a similar period of 70years as depicted on the right figure for modern times. Rapidly increasing atmospheric levels of CO 2 and other greenhouse gases (GHGs) have the potential to initiate unpredictable changes in the climate system, because of strong positive feedbacks, leading to severe ecological and economic disruptions. The WMO Global Atmosphere Watch (GAW) Programme tracks the changing levels of GHGs and serves as an early warning system by detecting changes in these key atmospheric drivers of climate change.

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