 Although disposing of plastic waste in landfills has less of a gas emission risk than disposal through incineration, the former has space limitations.Another concern is that the liners acting as protective layers between the landfill and environment can break, thus leaking toxins and contaminating the nearby soil and water.Landfills located near oceans often contribute to ocean debris because content is easily swept up and transported to the sea by wind or small waterways like rivers and streams.