Over the past 200 years, the Earth's magnetic field has been getting weaker. Researchers believe that this could be a sign that the poles are about to flip - and the consequences could be "dire," according to some scientists....
Over the past 200 years, the Earth's magnetic field has been getting weaker. Scientists believe that this could be a sign that the poles are about to flip - and the consequences could be dire. If a flip happens, it could...