Cold environment threaten the health and life of workers through cold stress. Pursuant to Section 5(a)(1) of the OSHA, employers are obligated to safeguard their employees from predictable hazards like cold stress, which may lead to death or serious physical harm at workplace. Cold stress happens when skin temperature decreases rapidly, eventually affecting the internal body temperature (core temperature). This may cause severe health problems, and result in tissue damage, and possibly death.