The environmental cost of plastic pollution refers to the negative impact that plastic waste has on the natural environment, including both marine and terrestrial ecosystems. This impact can take many forms, such as entanglement of wildlife, ingestion of plastic by animals, and disruption of food webs. Plastic waste can also contribute to greenhouse gas emissions and climate change, as well as soil and water pollution. The long-term effects of plastic pollution on the environment are still largely unknown, but they could have far-reaching consequences for ecosystems and human health. Addressing the environmental cost of plastic pollution requires a comprehensive approach, including reducing the use of single-use plastics, promoting recycling and waste reduction, and implementing policies to hold companies accountable for their environmental impact.