Climate resilient health systems are a vital part of adaptation to protect the most vulnerable from climate change . Cardiovascular fitness for example is a root cause of morbidity and mortality form heat stress . The World Health Organization has developed a framework of climate-resilient health systems that addresses both mitigation and adaptation goals . Universal health coverage  is an essential component of climate-resilient health systems. In most countries, access to health services is better in urban than in rural areas. However, there remain large urban populations with insufficient coverage of health services  and UHC tracking needs to take better account of inequalities in coverage, including differences in access within cities and further disaggregation of urban populations by income. Thus, health sector investment is an important tool in adaptive action and capacity. Analyses of health survey data shows that, globally, access to health care is increasing toward UHC targets . Financing for global health has increased steadily in the last two decades and modelling shows this trend is likely to continue to 2050, but at a slower pace of growth and the current disparities in per-capita health spending persist between high and low/middle income countries, leading to insufficient health service coverage for the poorest populations . Out-of-pocket spending is projected to remain substantial in LMIC and will remain the only means to access health care for many poor urban populations.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report