The primary environmental consequence of plastic pollution in oceans is the detrimental impact on marine ecosystems. Plastics, which can persist for hundreds of years, break down into microplastics, affecting marine life through ingestion and entanglement. Animals can mistake plastic debris for food, leading to malnutrition, internal injuries, or death. Additionally, plastic pollution disrupts natural habitats, contributing to biodiversity loss. It also poses risks to human health through the food chain, as microplastics accumulate in seafood. Addressing plastic pollution is crucial for conserving marine biodiversity and ensuring the health of oceanic ecosystems.