2018 https://books.google.com/books?hl=en&lr=&id=PXdvDwAAQBAJ&oi=fnd&pg=PA217&dq=catastrophe%7Ccatastrophic%7Cexistential%7Capocalypse%7Cdoomsday%7C%22end+of+the+world%22+%22solar+storm%22%7C%22geomagnetic+storm%22&ots=8MZCVSQl81&sig=IXr4B542fP_PW6GuVhrJzA7prHg Book chapter