Environment and Urbanisation Minister Murat Kurum speaks during a gathering to give a start to the cleaning of the sea covered with a plague of sea snot, a thick slimy layer of the organic matter also known as marine mucilage, spread through the Sea of Marmara and and which poses a threat to marine life and the fishing industry, on the shores of Istanbul, Turkey June 8, 2021. REUTERS/Umit Bektas