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Biodegradable Plastics & Litter
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This report concludes that biodegradable plastics will not significantly reduce ocean plastic pollution because they degrade far more slowly in marine environments than on land, and that oxo-degradable plastics actually increase microplastic quantities rather than solving the problem.
This report concludes that "the adoption of plastic products labelled as 'biodegradable' will not bring about a significant decrease either in the quantity of plastic entering the ocean or the risk of physical and chemical impacts on the marine environment". Indeed, biodegradable polymers degrade significantly slower in the marine environment than on land. Therefore, a widespread use is said to lead to continuing littering problems and its negative impacts. Furthermore, oxo-degradable polymers would only increase the quantity of microplastics in the environment and claims stating otherwise are likely motivated by commercial interests rather than scientific evidence.
More Papers Like This
Biodegradable plastics in the marine environment: a potential source of risk?
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This review examines whether biodegradable plastics offer a genuine solution to marine plastic pollution, finding that their environmental behavior depends heavily on specific conditions and that they may still pose risks in marine environments where decomposition is slow.
Potential environmental impacts of bioplastic degradation in natural marine environments: A comprehensive review
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This review examines the environmental impacts of biodegradable plastics degrading in marine environments, finding that their microscale breakdown raises significant concerns about contributing to microplastic pollution rather than eliminating it. The authors conclude that biodegradable plastics require reevaluation as petroleum-based plastic substitutes given the incomplete understanding of their behavior at the microscale in marine ecosystems.
Solution or Pollution? A paradigm shifts in understanding the fate and threats of biodegradable plastics in the marine environment
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This review challenges the assumption that biodegradable plastics are inherently eco-friendly by examining their degradation behavior in marine environments. Researchers found that biodegradable plastics often require specific conditions to break down and can themselves become sources of microplastic pollution when those conditions are not met. The study highlights a significant research gap in understanding the fate of biodegradable nano- and pico-plastics in marine ecosystems.
Fate of So‐Called Biodegradable Polymers in Seawater and Freshwater
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This review examined whether so-called biodegradable plastics actually break down in seawater and freshwater environments, finding that most degrade far too slowly to offer any practical environmental benefit. The study warns that biodegradable labeling can create a false sense of security and may not reduce plastic accumulation in aquatic ecosystems.
Are biodegradable plastics a promising solution to solve the global plastic pollution?
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This review examines whether biodegradable plastics are a viable solution to global plastic pollution and finds the answer is complicated. Researchers note that most biodegradable plastics require specific environmental conditions to break down and cannot yet replace most conventional plastics. The study concludes that while biodegradable plastics may be part of the solution, they should not be seen as a free pass for continued overconsumption, since littering behavior does not change simply because a material is labeled biodegradable.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.