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k8凯发国际科普 科技名词之碳中和

2024-10-21 08:43:05 来源于:k8凯发(中国)天生赢家·一触即发

  18世纪60年代工业革命以来□•◁○…▼,人类活动大量排放二氧化碳◇○•,导致气候变化加剧◆★▪◁▽,引发一系列环境和社会问题△☆-,威胁着人类社会的可持续发展▼■▽△△。目前▼☆☆,如何应对气候变化已经超越科技领域□△,成为国际政治和经济中的热点问题▪••▷。应对气候变化的关键在于实现碳中和○-■□-•,实现碳中和的基本途径是▪★“减排□▽▷”(减少在大气中排放二氧化碳)和◇○▼□☆“增汇◁☆-•”(增加对大气中二氧化碳的吸收)◁■□•。我国作为碳排放大国和发展中国家△△-…▪,应在尽可能减排的同时想方设法增汇=□★,这是实现碳中和的必由之路▲▽。

  碳中和的=•“碳○★▪-▷”=☆▷▷,指的是二氧化碳(CO2)○◇◇▪•,○◁•▽•“中和▼▪”即正负相抵-◇□▲•▷。如果排出的二氧化碳或温室气体总量被植树造林☆△●▽、节能减排等形式所抵消★▽,实现了二氧化碳的相对零排放…○,就是碳中和★●☆•。

  碳中和示意图(二氧化碳排放过量时★△☆,地球不堪重负◆■☆…;二氧化碳排放=二氧化碳吸收时★•☆◆☆▲,实现碳中和▷-▲-,地球享受…▷“绿色▽•”)

  定义▼◆▼•○△:通过计算日常活动直接或间接制造的二氧化碳排放总量▷□▽,并计算抵消这些二氧化碳所需的经济成本k8凯发国际◆•★◆★-,然后通过植树或其他环保项目等方式把这些排放量抵消掉=▪•☆△○,以达到环保的目的▲▼★●★◁。

  2021年3月15日=●=,习主持召开中央财经委员会第九次会议★•-。他在会上发表重要讲话★▽,指出◁◇:○■□▼•“实现碳达峰○▪▼◁◁、碳中和是一场广泛而深刻的经济社会系统性变革▲□=○△,要把碳达峰-▽、碳中和纳入生态文明建设整体布局…▪□,拿出抓铁有痕的劲头▪▼,如期实现2030年前碳达峰•△◇、2060年前碳中和的目标…☆。●◇◆▲•□”会议强调◇▷…●=,实现碳达峰●…、碳中和是一场硬仗-▽,也是对我们党治国理政能力的一场大考▷○▼▷。领导干部要加强碳排放相关知识的学习◆△==▲-,增强抓好绿色低碳发展的本领▪▪★○●。

  2020年9月22日=★◇▲,我国国家主席习在第75届联合国大会一般性辩论上提出中国…▷▲◆☆“努力争取2060年前实现碳中和•=”的宏伟目标◇•。这是中国向全世界的郑重承诺■●▽•★,彰显了大国责任△☆☆■,提升了我国的国际影响力…●。

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