Microplastic pollution has reached every corner of the planet, from deep sea sediments to Arctic ice, with documented welfare impacts on marine and terrestrial animals through ingestion, entanglement, and chemical toxicity.
Microplastics cause direct welfare harm through physical obstruction of digestive systems, creating false sensations of satiety that lead to starvation. Chemical leaching of plasticisers and absorbed pollutants disrupts endocrine function, reproduction, and immune response in exposed animals. Entanglement in larger plastic debris causes drowning, strangulation, and infected wounds in marine mammals, turtles, and seabirds. The scale of impact, affecting billions of individual animals globally, makes plastic pollution one of the most significant welfare issues in the oceans.