Cooperative agreement between countries of the North Atlantic Ocean reduces marine plastic pollution but with unequal economic benefits.

IF 8.1 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-02-22 DOI:10.1038/s43247-025-02115-5
Nicola J Beaumont, Tobias Börger, James R Clark, Nick Hanley, Robert J Johnston, Keila Meginnis, Christopher Stapenhurst, Frans P de Vries
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Abstract

Plastic pollution in the world's oceans threatens ecosystems and biodiversity. The connected nature of the marine environment suggests that coordinated actions by countries sharing an ocean border may provide more effective pollution control than unilateral actions by any one country. However, countries often fail to cooperate, even when joint economic benefits would be higher under cooperation. Here we present a modelling framework to determine the potential economic benefits of cooperative marine plastic pollution management. The framework integrates an estimated plastic transfer matrix from a particle tracking model with game theory to derive the economic benefits of international cooperation for 16 countries bordering the North Atlantic Ocean. Subject to modelling uncertainties, a fully cooperative agreement yields aggregate annual net benefits of around $36 billion and a 64% reduction in emissions. The net benefits of cooperation persist over alternative scenarios and considering the impact of uncertainties but vary in magnitude and distribution.

北大西洋国家间的合作协议减少了海洋塑料污染,但经济效益不平等。
世界海洋中的塑料污染威胁着生态系统和生物多样性。海洋环境相互联系的性质表明,共享海洋边界的国家采取协调行动可能比任何一个国家采取单方面行动更有效地控制污染。然而,即使在合作可以获得更高的共同经济效益的情况下,各国也经常不合作。在这里,我们提出了一个模型框架,以确定合作海洋塑料污染管理的潜在经济效益。该框架结合了粒子跟踪模型和博弈论的估计塑料转移矩阵,以得出北大西洋沿岸16个国家国际合作的经济效益。考虑到模型的不确定性,一份全面合作的协议每年将产生约360亿美元的净收益,并减少64%的排放量。考虑到不确定性的影响,合作的净效益比其他方案持续存在,但在规模和分布上有所不同。
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来源期刊
Communications Earth & Environment
Communications Earth & Environment Earth and Planetary Sciences-General Earth and Planetary Sciences
CiteScore
8.60
自引率
2.50%
发文量
269
审稿时长
26 weeks
期刊介绍: Communications Earth & Environment is an open access journal from Nature Portfolio publishing high-quality research, reviews and commentary in all areas of the Earth, environmental and planetary sciences. Research papers published by the journal represent significant advances that bring new insight to a specialized area in Earth science, planetary science or environmental science. Communications Earth & Environment has a 2-year impact factor of 7.9 (2022 Journal Citation Reports®). Articles published in the journal in 2022 were downloaded 1,412,858 times. Median time from submission to the first editorial decision is 8 days.
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