A person lightly dressed in shorts, shoes and a shirt is sitting on a cushioned chair in their shady backyard where the air temperature is 12 °C. There is no wind yet they feel uncomfortably cool. What is their major avenue of heat loss?

C: The lack of wind minimises convective loss, while the light clothing prevents conductive loss to the chair and ground. The low temperature means that sweating is not occurring. Radiative loss will occur as the body temperature is greater than that of the surroundings.