Polymer bills cost twice as much as paper, but last five times as long (and can survive the washing machine).
Mark Robertshaw is walking around a printing plant in Wigton, England, about 10 miles from the Scottish border, with a wad of cash. He lays out a Mexican 50, a Canadian 20, an Australian 5, and a fiver from the U.K. Unlike euros or U.S. dollars, these notes have a slight sheen and the feel of wax paper. That’s because they entered the 10-story plant as popcorn-size kernels of plastic.
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