Nations responsible for much of the world's ocean plastic pollution have promised to start cleaning up their act.
At a UN oceans summit, delegates from China, Thailand, Indonesia and the Philippines said they would work to keep plastics out of the seas.
Eric Solheim, the UN's environment director, told BBC News: "There are quite encouraging signs, with nations taking the ocean much more seriously.
A recent paper said much of the marine plastic often originates far from the sea - especially in countries which have developed consumer economies faster than their ability to manage waste.
The Thai government says the nation has established a 20-year strategy to tackle the problem, including developing financial incentives for keeping plastic out of the sea and encouraging eco-packaging design and eco-friendly substitutes for plastics.
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