National Economy Iowa Chemist Turns Inedible Hedge Balls Into Valuable Cash Crop 8:18pm December 09, 2015 by Lindsey Moon ECONOMY Business U.S. Around the Nation Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2015 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More All Things Considered Science Days are getting slightly longer — and it's due to climate change by Lauren Sommer What happened to the glamorous days of airline travel? You pay for what you get by Erika Beras 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate