The report, Single-Use Plastics: A Roadmap for Sustainability, said while government regulation on the use of plastic has made some impact on reducing waste, it is not enough, and more urgent action is needed. “Our world is swamped by harmful plastic waste,” U.N. Secretary-General Antonio Guterres said in a speech. “Microplastics in the seas now outnumber stars in our galaxy. From remote islands to the Arctic, nowhere is untouched. If present trends continue, by 2050 our oceans will have more plastic than fish,” he said.