Link: http://thehill.com/blogs/congress-blog/homeland-security/151657-nuclear-storm-warnings

White House Science Advisor John Holdren and Sir John Beddington, Science Advisor to British Prime Minister David Cameron, in a recent joint article "Celestial Storm Warnings" published in the New York Times, warned that a solar flare from the Sun could cause a great geomagnetic storm, with catastrophic consequences for the United States and the world. A great geomagnetic storm would generate a powerful electromagnetic pulse (EMP) that could destroy electronic systems and collapse all the critical infrastructures--power grids, communications, transportation, banking and finance, food and water--that sustain modern civilization, and the lives of millions. Holdren and Beddington write reassuringly that "work to protect our societies is well underway."