Impact of Climate Change on Outdoor Thermal Comfort and Health in Tropical Wet and Hot Zone (Douala), Cameroon

Abstractbackground and purpose: climate change has an important role on the health and productivityof the occupant of the building. the objective of this study is to estimate the effects of climatechange on thermal comfort in hot and wet areas, as in the case of the city of douala.materials and methods: the general circulation model (csmk3 model, scenario b1) wasadopted for this purpose. outdoor daily parameters of temperature, sunshine, and precipitation oflast 40 years were analyzed and allowed us to make forecast on this area. the past (1990-2000),the present (2001-2011), and the future (2012-2022) were considered in the hypotheses.results: it has been found that douala like some large cities of africa is already and will beseverely hit of advantage by climate change if anything is not going to slow. by 2033, it isexpected to have an increase of more than 0.21° c of temperature; thus, a decrease ofprecipitation.conclusion: in 2023, total discomfort will reign in the dry season, especially in january wherehumidex could reach 42.9. on the other hand, in the rainy season, humidex will increase of 0.91compared to year 2013. this effect will have an increase of temperature. when we maintainrelative humidity, and we increase temperature, humidex varies enormously and displays amaximum value, with maximum temperature.