Microplastics are no longer mere passive indicators of global plastic pollution; in the Arctic, they have become active agents reshaping the region’s environmental and climatic trajectory. These particles, smaller than five millimetres, have been detected across sea ice, snow, surface waters, sediments, and even at the base of the marine food web. They arrive via long range atmospheric transport, ocean currents, and increasing local human activities such as shipping and research operations. Cr
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