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. Some of the promises are not yet formalised and environmentalists say the measures proposed are not nearly urgent enough. But UN officials praised the statement. Meeting in New York, they said it was part of a clear international shift against ocean pollution.
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