Heat waves and other climatic extremes affect densely populated urban centres and coastal regions, causing health risks for vulnerable groups, in particular those who live in poverty with substandard housing . Nights with temperatures higher than 23ºC have been increasing, with a corresponding increase in health risks . Human health is also vulnerable to other risks altered by climate change, either directly through droughts, floods, fires and so forth or indirectly through impacts on disease vectors, air pollution, water quality and food security . Cases of dengue fever were recently reported from several countries, and there is an apparent threat of outbreaks transmitted by Aedes mosquitoes in the northern Mediterranean . The most vulnerable to climate impacts are the elderly, pregnant women, children, the chronically ill, the obese and people with cognitive impairment .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report