levels of treatment compliance and boiling water before consumption offset the projected impact of climate change on giardiasis in Canada in the 2050 scenario, but could not wholly offset the projected impact in 2080 . Climate change impacts on WaSH- attributable disease burden are also projected to delay China's progress towards disease reduction by almost 9% under RCP8.5 . Disruptions in the drinking water supply can lead to increased household water storage, potentially increasing vector larvae breeding habitats . In combination with the projected expansion of vector ranges given climate change , there is the potential for increased risk of vector-borne disease during periods of water shortage or natural disasters . Moreover, energy requirements for water and wastewater treatment are indirectly responsible for GHG emissions, while the breakdown of excreta contributes directly to emissions . These contributions need to be better articulated and accounted for as part of the WaSH and climate change dialogue .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report