It’s almost the New Year, and while 2016 doesn’t come coated with the same doomsday paranoia that accompanied 2012, it never hurts to be prepared. A new year means another 365 days (in 2016’s case, 366) which, if you are inclined to be fatalistic, could lead to humanity’s doom. In the event of a catastrophic meteor collision, suffocating nuclear winter, or solar storm capable of knocking...