Foam fragments (IMAGE) University of Toronto Caption Mismanaged waste from littering, including fragments of foam packaging, accounted for the greatest share of an estimate of plastic pollution in Toronto in 2020. Credit U of T Trash Team Usage Restrictions N/A License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.