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Katie Spencer/Medill

Vilas Pol of Argonne National Laboratory works to turn plastic bags into valuable materials.

Earth Day propels battle against the grocery bag

by Katie Spencer
April 20, 2011

The millions of plastic bags that Americans use every year pile up in landfills, where they cause a big drain on the environment. One scientist at Argonne National Laboratory found a way to turn those bags into valuable materials. Watch to learn more about the process and about how a local grocery store chain is cutting back on grocery bag waste.