A mess of plastic It is not clear what strategies will be most effective in mitigating harm from the global problem of plastic pollution. Borrelle et al. and Lau et al. discuss possible solutions and their impacts. Both groups found that substantial reductions in plastic-waste generation can be made in the coming decades with immediate, concerted, and vigorous action, but even in the best case scenario, huge quantities of plastic will still accumulate in the environment. Science, this issue p. 1515, p. 1455 Plastic pollution will increase substantially in the coming decades, even with vigorous management. Plastic pollution is a pervasive and growing problem. To estimate the effectiveness of interventions to reduce plastic pollution, we modeled stocks and flows of municipal solid waste and four sources of microplastics through the global plastic system for five scenarios between 2016 and 2040. Implementing all feasible interventions reduced plastic pollution by 40% from 2016 rates and 78% relative to “business as usual” in 2040. Even with immediate and concerted action, 710 million metric tons of plastic waste cumulatively entered aquatic and terrestrial ecosystems. To avoid a massive build-up of plastic in the environment, coordinated global action is urgently needed to reduce plastic consumption; increase rates of reuse, waste collection, and recycling; expand safe disposal systems; and accelerate innovation in the plastic value chain.

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评估实现零塑料污染的情景

一堆塑料 目前尚不清楚哪些策略最能有效减轻全球塑料污染问题的危害。博雷尔等人。和刘等人。讨论可能的解决方案及其影响。两个小组都发现，在未来几十年内，可以通过立即、协调和有力的行动大幅减少塑料废物的产生，但即使在最好的情况下，大量塑料仍然会在环境中积聚。科学，这个问题 p。1515，第。1455 塑料污染将在未来几十年大幅增加，即使采取强有力的管理。塑料污染是一个普遍存在且日益严重的问题。为了评估减少塑料污染的干预措施的有效性，我们对 2016 年至 2040 年期间通过全球塑料系统的五种情景的城市固体废物和四种微塑料的存量和流量进行了建模。实施所有可行的干预措施使塑料污染比 2016 年减少了 40%，相对于“一切照旧”减少了 78%到 2040 年。即使立即采取一致行动，仍有 7.1 亿吨塑料垃圾累积进入水生和陆地生态系统。为避免塑料在环境中大量堆积，迫切需要全球协调行动以减少塑料消费；提高再利用、废物收集和回收率；扩大安全处置系统；并加速塑料价值链的创新。实施所有可行的干预措施后，塑料污染比 2016 年减少了 40%，相对于 2040 年的“一切照旧”减少了 78%。即使采取立即和协调一致的行动，仍有 7.1 亿公吨塑料废物累积进入水生和陆地生态系统。为避免塑料在环境中大量堆积，迫切需要全球协调行动以减少塑料消费；提高再利用、废物收集和回收率；扩大安全处置系统；并加速塑料价值链的创新。实施所有可行的干预措施后，塑料污染比 2016 年减少了 40%，相对于 2040 年的“一切照旧”减少了 78%。即使采取立即和协调一致的行动，仍有 7.1 亿公吨塑料废物累积进入水生和陆地生态系统。为避免塑料在环境中大量堆积，迫切需要全球协调行动以减少塑料消费；提高再利用、废物收集和回收率；扩大安全处置系统；并加速塑料价值链的创新。迫切需要协调的全球行动来减少塑料消费；提高再利用、废物收集和回收率；扩大安全处置系统；并加速塑料价值链的创新。迫切需要协调的全球行动来减少塑料消费；提高再利用、废物收集和回收率；扩大安全处置系统；并加速塑料价值链的创新。