This article talks about Ganza having undrinkable drinking water due to contamination. The contamination is due to sealing borders among neighboring countries, leading to lack of access to filters to produce safe drinking water. This act of war affects the noxious water cycle, but is only a part within a biosystem that interacts with other biomes.
https://www.livescience.com/62463-gaza-toxic-biosphere-of-war.html
https://www.livescience.com/62463-gaza-toxic-biosphere-of-war.html