Predicted growth in plastic waste exceeds efforts to mitigate plastic pollution
Predicted growth in plastic waste exceeds efforts to mitigate plastic pollution
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DOI：
10.1126/science.aba3656
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发表时间：
2020-09-18
期刊：
影响因子：
56.9
通讯作者：
Rochman, Chelsea M.
中科院分区：
文献类型：
--
作者：
Borrelle, Stephanie B.;Ringma, Jeremy;Rochman, Chelsea M.
塑料污染是一种全球性威胁，影响着全球几乎所有海洋和淡水生态系统。为此，人们正在采取多层次的缓解策略，但缺乏对这些策略如何减少塑料排放的定量评估。我们评估了三大管理战略（塑料废物减少、废物管理和环境恢复）在不同层面的影响，以估算 173 个国家到 2030 年的塑料排放量。我们估计，2016 年全球产生的塑料废物有 19 至 2300 万吨（即 11%）进入水生生态系统。考虑到各国政府目前制定的雄心勃勃的承诺，到 2030 年，年排放量可能高达 5300 万吨。为了将排放量减少到远低于这一预测的水平，需要付出非凡的努力来改变全球塑料经济。
Plastic pollution is a planetary threat, affecting nearly every marine and freshwater ecosystem globally. In response, multilevel mitigation strategies are being adopted but with a lack of quantitative assessment of how such strategies reduce plastic emissions. We assessed the impact of three broad management strategies, plastic waste reduction, waste management, and environmental recovery, at different levels of effort to estimate plastic emissions to 2030 for 173 countries. We estimate that 19 to 23 million metric tons, or 11%, of plastic waste generated globally in 2016 entered aquatic ecosystems. Considering the ambitious commitments currently set by governments, annual emissions may reach up to 53 million metric tons per year by 2030. To reduce emissions to a level well below this prediction, extraordinary efforts to transform the global plastics economy are needed.