This fact sheet details precautions to take to ensure safety while conducting field research activities in extreme climates. The climate in the area where the field work is to be conducted needs to be considered and planned for, as it can impact not only research activities, but also the health and safety of the researchers themselves. Heat exhaustion, heat stroke, heat cramps, hypothermia, frostbite, and trench foot are all hazards that may be posed when conducting field research. This fact sheet offers preventive strategies for hazard mitigation during field research.