oceans

Many people are aware of plastic pollution in the oceans. Photos of turtles or seabirds entangled in plastic garbage first went viral in the 1990s, and the Great Pacific Garbage Patch is now the focus of highly publicized cleanup efforts.

The five-day U.N. Ocean Conference in Lisbon, Portugal has drawn senior officials and scientists from more than 120 countries

More than 3 billion people rely on the ocean for their livelihoods, the vast majority in developing countries, said Guterres.