About "Forty Below Zero"
'Forty Below Zero' refers to extremely cold temperatures,
specifically -40 degrees, which is the same in both Fahrenheit and Celsius scales. According to the
National Weather Service, temperatures of forty below zero represent dangerous cold conditions that can
cause frostbite within minutes of exposure. The phenomenon of extreme cold has been extensively studied by
climate scientists at institutions like the National Center for Atmospheric Research, who document how
such temperatures affect human physiology, infrastructure, and ecosystems. Historically, forty below zero
temperatures have been recorded in various regions including Alaska, northern Canada, and Siberia.
Understanding extreme cold is crucial for public safety, as documented by the Centers for Disease Control
and Prevention in their guidelines for cold weather safety and hypothermia prevention. Sources: National Weather Service, Centers for Disease Control and
Prevention.