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Microplastics and their Impact on the Marine Environment
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This review examines how plastic debris in the ocean degrades into microplastics and affects marine ecosystems. The authors discuss how surface plastics reduce heat absorption and how degrading plastics release greenhouse gases, potentially contributing to climate change. The review also highlights the role of ocean plastic in altering marine food webs and threatening biodiversity.
The present study investigates the negative impact of a marine polluter on the marine environment. Plastics degraded into micro and macroplastics harm the environment in many ways. Finding their way to the oceans cause increase in temperature at the surface and cooling in deeper waters. Degrading macroplastics releases potent greenhouse gases. More importantly, they are implicated to cause climate change. Plastic in the ocean affects its ability to act as a carbon sink by decelerating the “biogeochemical cycle of carbon”. The ocean is the largest natural sink for anthropogenic greenhouse gases. Various short- and long-term measures are also proposed to curb the flow of plastic waste into the Oceans.
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This review examined the largely overlooked role of marine microplastics in driving climate change, covering how they disrupt oceanic carbon pumps, alter biogeochemical cycling, and directly emit greenhouse gases during UV degradation. The authors found that microplastics reduce the efficiency of the biological carbon pump by impairing marine organisms that sequester carbon, creating a feedback loop between plastic pollution and ocean warming.
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This review examines how marine plastic pollution proliferates in ocean environments, discussing the degradation pathways by which macroplastics break down into microplastics and the resulting harmful effects on marine organisms and ecosystems. The review synthesizes evidence on physical, chemical, and biological impacts of plastics across marine habitats.
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This review summarizes the sources, distribution, and ecological impacts of microplastic pollution in marine environments, describing how UV degradation of plastic debris generates microplastics that affect marine organisms across multiple trophic levels.
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