Climate change will contribute to additional deaths and mortality due to diarrhoeal diseases in the absence of adaptation  . Risk factors for future excess deaths due to diarrhoeal diseases are highly mediated by future levels of socioeconomic development and adaptation. An additional 1ºC increase in mean average temperature is expected to result in a 7%  increase in all-cause diarrhoea , an 8%  increase in the incidence of diarrheic E. coli  and a 3-11% increase in deaths attributable to diarrhoea . WHO Quantitative Risk Assessments for the effects of climate change on selected causes of death for the 2030s and 2050s project that overall deaths from diarrhoea should fall due to socioeconomic development but that the effect of climate change under higher emission scenarios could cause an additional 48,000 deaths in children aged under 15 years in 2030 and 33,000 deaths for 2050, particularly in Africa and parts of Asia. In Ecuador, projected increases in rainfall variability and heavy rainfall events may increase diarrhoea burden in urban regions . A limit in the assessable literature is a lack of studies in the highest risk areas .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report