Where does your recycling go? In most places in the U.S., you throw it in a bin, and then it gets carted off to be sorted and cleaned at a Materials Recovery Facility (MRF). From there, much of it is shipped off to mills, where bales of paper, glass, aluminum, and plastic are pulped or melted into raw materials. Some of these mills are here in the U.S. And once upon a time, many of them were in China.
Since 2001, China was one of the biggest buyers of American recycling.  That is, until last year, when China pulled a move that no one saw coming: they stopped buying.
National Sword