 This study examines the effects of rising temperatures due to climate change on the population of the Aosta Valley region in northwest Italy. It uses satellite imagery to measure land surface temperature, LST, changes over time, and then analyzes the results using two methods. First, it performs an unsupervised classification clustering to identify areas with similar LST increases. Secondly, it develops a risk geoanalysis to determine areas with the highest risk of exposure to rising temperatures. The results indicate that the bottom valley municipalities are experiencing the most significant LST increases, particularly in newly developed areas. These areas are home to the majority of the population and domestic animals, making them highly vulnerable to the effects of climate change. This article was authored by Tommaso Arusa, Annalisa Viani, Buenilo Moyo, and others.