Plastics and papers from dozens of American cities and towns are being dumped in landfills after China stopped recycling most “foreign garbage.”

“All of a sudden, material being collected on the street doesn’t have a place to go,” said Pete Keller, vice president of recycling and sustainability at Republic Services, one of the largest waste managers in the country.

Here’s a guide to recycling. First lesson: Don’t recycle greasy pizza boxes. Climate

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