If strong enough, the storm of electrons and other charged particles from an EMP could disrupt the Earth’s magnetic field, disable satellites and the internet, ground all commercial aviation, silence telecommunications, and fry much of the electrical grid — catapulting our society back to the 19th century for months or years.
Peter Pry, executive director of the federal EMP Task Force on National and Homeland Security, told Congress this year that a major EMP could cause widespread “starvation, disease, and societal collapse” that could lead to the deaths of tens of millions of people. The Obama administration recently released a multiagency battle plan to study and defend against what many scientists consider the most likely source of EMPs: solar storms, which Bill Murtagh of the White House Office of Science and Technology Policy calls “a real and present danger.”
Having training in electrical engineering I have known about EMPs for quite some time and their possible impact on the world. According to this article the last solar super-storm with a massive EMP occurred in 1859 long before we had microchips.
I guess we need to add this one to our overgrowing list of fears for today.