The SciencesHeaded South?Earth¿s fading field could mean a magnetic flip soonBy Sarah Simpson on November 1, 2002Advertisement Rights & Permissions ABOUT THE AUTHOR(S)Recent Articles by Sarah SimpsonAfghanistan: Rare Earth Elements Could Beat the Taliban [Slide Show]Afghanistan Holds Enormous Bounty of Rare Earths, MineralsAfghanistan's Buried Riches