Heavy rainfalls and lead to more extreme weather conditions, such as flooding some regions, whereas leaving droughts in others. One more change caused by global warming is rising sea levels, which eventually affect near-shore freshwater sources as well as groundwater. The major problems with all these changes are unequal water distribution among the globe’s population, decreasing water quality due to pollution, as well as lack of flexible water management systems to adapt to a range of impacts that different global warming scenarios can cause.
Unequal water distribution across populated areas brings another related issue to the sight – food supply security. Regions which rely on freshwater to grow their crops may face floods, less available water for irrigation in coastal areas due to salinization and droughts in other regions.
Ensuring sustainable water supply to the entire population is another challenge which we face at the age of changing the climate.