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So, how long before this gets blamed on global warming?
Earth is such a habitable place, thanks in no small part to the vast magnetic field that surrounds our planet, shielding us from harsh solar winds and cosmic radiation.But scientists have been investigating one of the most powerful geomagnetic storms in recent history, and they’ve discovered that our protective barrier isn’t as secure as we thought it was. Turns out, our magnetosphere has been cracked.(excerpt)http://www.sciencealert.com/scientists-have-detected-a-crack-in-earth-s-magnetic-shield