Great Canadian Shoreline Cleanup event held in Vancouver, Canada

Volunteers collect litters along the Iona Beach during the annual Great Canadian Shoreline Cleanup event in Vancouver, Canada, Sept. 21, 2019. Tens of thousands people across Canada participated in the annual Great Canadian Shoreline Cleanup event to clean up those marine litters washed up from the sea to mark the World Cleanup Day. (Photo by Liang Sen/Xinhua)