Polar Bear Joe Bunni | getty images

快车道气候行动

波恩—去年12月在巴黎,世界领导人齐聚一堂,就一系列全球经济去碳化和提升我们适应气候变化的能力的目标和路径形成了一致。这是一个标志性成就,但只是开始。每个国家——在城市、私人部门和公民的支持下——现在应该迅速行动起来兑现承诺,让气候变化处于控制之下。

联合行动的紧迫性毋庸置疑。任何拖延都会导致负面后果继续累积。这不但将造成巨大的灾难,特别是对全世界最脆弱人群;其影响将延绵几十年,让控制全球(较前工业化水平)升温幅度不超过2摄氏度的目标成本日益增加。

我们需要的迅速进展要求大幅降低二氧化碳排放量,这可以通过增加开发和扩张更清洁、更高效的能源的投资实现。与此同时,保护和扩大碳“沉淀”——即吸收大量排放出来的二氧化碳的森林、湿地、草地、红树林和海藻——也很关键。

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