Concern: Diabetes and rising global temperature The World Health Organization estimates that of the 500 million people worldwide thought to have diabetes, 90% have type 2 diabetes and the number diagnosed with diabetes by 2020 will increase dramatically. Diabetes can impair the body’s ability to thermoregulate leading to a relative inability to adequately regulate core temperature. This can have a profound impact on the ability of individuals with diabetes to work and play in adverse environments which includes workers in many vital industries who may be regularly exposed to harsh environmental conditions.