Climate change now influences health outcomes in direct and quantifiable ways. By 2025, persistent heat records, altered rainfall patterns, and an increased frequency of extreme events have transformed climate-related health hazards from projections into a daily occurrence.

Rising temperatures and shifting precipitation patterns are extending the geographic scope and prevalence of vector-borne diseases such as, but not limited to Dengue, Zika, and Malaria, tick-borne illnesses, elevating heat-related diseases, air pollution-related illnesses, and mortality rates; and exacerbating food insecurity. Climate change functions as a risk multiplier, intensifying existing pressures on health systems and revealing deficiencies in resilience, financing, and governance across regions.

Addressing these facts entails a transformation in the manner in which health systems adapt to climate risk, as well as in how they are financed, governed, and supported.