Why it will take more than basic recycling to cut back on plastic

In the 70 years that plastic has been around, humans have created 9 billion tons of it -- most of which still exists. Are the existing strategies for tackling plastic pollution -- namely reusing and recycling -- really making any difference? Amna Nawaz and producer Lorna Baldwin make stops in three states to take a look at some innovative ideas aimed at reducing plastic waste.
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