January can be a dreary month and it hasn’t been helped with the announcement last week by a group of eminent scientists that our very existence has never been more in danger. Cheery, huh? But don’t despair, because we can still turn back the hands on the so-called Doomsday C lock. The Bulletin of the Atomic Scientists sets the imaginary clock every January and they announced on January 24 it is 90 seconds to midnight. Reaching midnight means game over for us as a species, most likely because of a nuclear holocaust, although the risk from climate change or another...