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Potential environmental impacts of marine renewable energy due to the release of microplastic particles from synthetic mooring cables
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This paper raises an often-ignored concern: the large-scale expansion of offshore wind and wave energy platforms will require vast lengths of synthetic mooring cables, which will gradually degrade and release microplastics into the ocean. Unlike oil platforms, offshore renewable energy installations cover enormous sea areas with relatively low economic return per cable, making high-quality anti-degradation measures less likely. The authors urge the renewable energy sector to begin assessing and addressing this potential source of ocean plastic pollution before large-scale deployment accelerates.
Abstract The large-scale exploitation of offshore renewable energy in floating platforms will increase the use of synthetic mooring cables to secure them to the sea-bottom, because of the need to employ low-cost and lightweight materials to ensure economic viability. The degradation of these cables will release microplastic particles to the ocean, causing environmental impacts that have so far received little attention. Here, we try to raise awareness to this potential problem, by explaining the fundamental differences between offshore renewable energy structures and traditional ones, such as oil platforms, in what concerns their economics and layout at sea, listing the most relevant materials for mooring cables, and discussing potential problems and solutions. These impacts have not yet materialised because offshore renewable energy technology is only now reaching commercial viability, but are likely to become an issue in the future.
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Global patterns of microfiber contamination in the marine environment were reviewed, documenting that synthetic and non-synthetic fibers are found in all major ocean basins, with fibers being the most common microplastic type along shorelines. The review highlights that non-synthetic and semi-synthetic fibers are frequently overlooked in monitoring despite being a significant component of total microfiber pollution.
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This review examines the sources, environmental transport, and health implications of microfibers — including synthetic fibers from textiles and natural fibers — in the marine water column. With global fiber production exceeding 100 million metric tons annually, synthetic microfibers are one of the most abundant forms of microplastic in the ocean.
The detrimental impact of microplastics on the Marine Environment and potential remediation strategies.
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This review analyzes the detrimental impacts of microplastics on marine environments, summarizing documented hazards to marine life and ecosystems from historical and recent research, and evaluates several representative remediation strategies for addressing microplastic contamination. The authors found that microplastics interfere broadly with marine organism physiology and food web dynamics, and that current treatment approaches — including filtration, photocatalysis, and biological degradation — each carry limitations requiring further development for large-scale application.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.