National Science How Cacti Can Clean Drinking Water 8:15am April 02, 2016 News U.S. Research News Science Share URL copied to clipboard! Copyright 2016 NPR. To see more, visit NPR. 300x250 Ad More Weekend Edition Saturday World News Chileans weigh a new constitution by Scott Simon Sports Saturday sports: Serena Williams' dramatic U.S. Open by Tom Goldman 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate
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