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  • Grain bins much like these modern ones, photographed in southern Africa, were ritually burned down during Africa's Iron Age. The scorched ground beneath them conserved rare clues about the Earth's magnetic field.
    During Africa's Iron Age, about 1,000 years ago, a common ritual of ancient villagers was to burn down huts and grain bins in their villages, leaving behind a key mineral in the ground that recorded the magnetic field of the Earth at the time of each burning. This phenomenon is offering insight into fluctuation of the field's intensity, its relation to the South Atlantic Anomaly, and the mysterious reversal of the magnetic poles. [...]
  • A combination of heavy rainfall and storm surge could lead to extreme amounts of coastal flooding in the U.S. sometime in the next century.
    A combination of heavy rainfall and storm surge could lead to extreme amounts of coastal flooding in the U.S. sometime in the next century. [...]

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