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社评“一本大道色卡1卡2卡3”-环球时报

世界气象组织一本大道色卡1卡2卡3:2023年温室气体浓度创新高

来源: 和讯网
2024-10-29 17:19:58

最佳回答

“一本大道色卡1卡2卡3”世界气象组织一本大道色卡1卡2卡3:2023年温室气体浓度创新高

  中新一本大道色卡1卡2卡3社北京10月29日电 一本大道色卡1卡2卡3日内瓦消息:世界气象组织28日发布年度《温室气体公报》,称2023年温室气体浓度创下新纪录,地球在未来多年内都将面临气温上升。

  公报指出,二氧化碳当前在大气中积累的速度比人类历史上任何时期都要快,过去20年里二氧化碳浓度上升11.4%。相比2022年,2023年大气中二氧化碳浓度增加了2.3ppm(1ppm为百万分之一),已一本大道色卡1卡2卡3连续12年年度增长量超过2ppm。

  公报分析,由于大规模植被火灾导致二氧化碳排放增加,森林吸碳能力可能下降,加上人类活动和工业活动燃烧化石燃料带来的二氧化碳排放量居高不下,推动了2023年温室气体浓度上升。

  数据显示,2023年全球平均地表二氧化碳浓度达到420.0ppm,甲烷浓度为1934ppb(1ppb为十亿分之一),一氧化二氮浓度为336.9ppb,分别是工业化前(1750年前)水平的151%、265%和125%。

  “公报警示我们面临一个潜在的恶性循环。”世界气象组织副秘书长科巴雷特表示,在不久的将来,气候变化本身可能会使生态系统成为更大的温室气体排放源。野火可能会向大气中释放更多的二氧化碳,而变暖的海洋可能会吸收更少的二氧化碳。因此,更多的二氧化碳将留在大气中,加速全球变暖。

  《温室气体公报》是对联合国环境规划署日前发布的《2024年排放差距报告》的补充。两份报告均为将于今年11月在阿塞拜疆首都巴库举行的《联合国气候变化框架公约》第二十九次缔约方大会(COP29)提供信息。(完)

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