In Polluted India, Negative Ion Necklaces Vow To Help You Breathe Easier

By Geoff Brumfiel
Published May 12, 2016 at 3:46 PM CDT
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Geoff Brumfiel
Geoff Brumfiel works as a senior editor and correspondent on NPR's science desk. His editing duties include science and space, while his reporting focuses on the intersection of science and national security.
See stories by Geoff Brumfiel