“Microplastics in Sediment Reveal Decades of Global Human Impact, Study Finds” — what this page in the network covers. A new review published in Earth-Science Reviews shows that microplastics accumulating in sediments worldwide serve as a geological marker of human activity over recent decades. Researchers from the Leibniz Institute for Baltic Sea Research Warnemünde (IOW) and the University of Leicester analyzed sediment records to trace the rise of plastic pollution. They found that microplastic particles in sediment layers increased sharply from the mid-20th century, mirroring global plastic production and waste generation.
The study highlights how these tiny particles, often invisible to the naked eye, are now embedded in riverbeds, lake bottoms, and ocean floors across the planet. By dating sediment cores, scientists can link microplastic abundance to specific periods of industrial growth, consumer behavior, and waste management practices. For the complete material, the listing points back to the source inside the network.