paris climate agreement Chesnot/Getty Images

特朗普异想天开的能源政策

马德里—2017年4月22日——国际地球日——是巴黎气候协定签署一周年的日子。巴黎气候协定在去年11月生效,目前有195个签署国。这一里程碑式的多边条约至今仍是全球遏制气候变化最重要的一步。但美国总统特朗普的能源政策给巴黎协定一周年纪念日蒙上了一层阴影。

2016年是有记录以来最热的一年,地球平均温蒂比二十世纪平均水平高出0.9º C 。巴黎协定的主要目标是在2100年前阻止世界平均温度较前工业化时代上升2℃以上。值得注意的是,发展中国,如分别是世界最大和第三大温室气体排放国的中国和印度,都承诺要达到这一目标。

巴黎协定为这些承诺制定了革命性新框架:“国家自定贡献”(Nationally Determined Contributions,NDC)。每个签署国都列出自己的NDC,即其自愿为减轻人为气候变化的影响这一全球共同目标做出的贡献。

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