Thursday, 16 October 2014

The Earth's Magnetic Field Could Flip Within a Single Lifetime



The Earth's Magnetic Field Could Flip Within a Single Lifetime

Earth's magnetic field is constantly shifting, and roughly every 200,000 to 300,000 years it flips north and south completely. We're currently overdue for a switcheroo—and scientists now say it could happen in a time as short as 100 years, potentially altering life in unexpected ways.
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