In urban settings, observed climate change has caused impacts on human health, livelihoods and key infrastructure . Multiple dimate and non-climate hazards impact cities, settlements and infrastructure and sometimes coincide, magnifying damage . Hot extremes including heatwaves have intensified in cities , where they have also aggravated air pollution events  and limited functioning of key infrastructure . Observed impacts are concentrated amongst the economically and socially marginalized urban residents, e.g., in informal settlements . Infrastructure, including transportation, water, sanitation and energy systems have been compromised by extreme and slow-onset events, with resulting economic losses, disruptions of services and impacts to well-being . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report