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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Marine & Wildlife Remediation Sign in to save

Recovery from microplastic-induced marine deoxygenation may take centuries

Nature Geoscience 2022 41 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Karin Kvale, Andreas Oschlies

Summary

Biogeochemical modeling showed that even complete removal of microplastics from the ocean starting in 2022 would not fully reverse microplastic-induced marine deoxygenation for centuries due to accumulated impacts on phytoplankton and oxygen cycling. The findings underscore the long-term consequences of microplastic pollution for ocean health.

Study Type Environmental

Abstract Climate change and plastics pollution are dual threats to marine environments. Here we use biogeochemical and microplastic modelling to show that even if there is complete removal of microplastics and cessation of deposition in the oceans in 2022, regional recovery from microplastic-induced remineralization and water column deoxygenation could take hundreds of years for coastal upwelling zones, the North Pacific and Southern Ocean. Surface stratification and reduced sea ice cover further impede regional recovery, highlighting the importance of aggressive mitigation of plastic pollution.

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