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[[Image:AfricaDrought.jpg|thumb|right|250px|In Kenya where drought is challenging, communities are encouraged to wash their hands with ash, a local disinfectant that is free and easily accessible. <br>Photo: REUTERS. [http://marysanyuosire.blogspot.com/2012/01/saving-lives-during-worst-drought-in-60.html Health of East Africa blog.]]]
This article is part of a section on [[Resilient WASH systems in drought-prone areas|resilience of WASH systems]].
It is difficult to predict how and where climate change will have the greatest effects. Every region in the world will not have reduced overall water availability – some areas will have more annual rainfall, while other areas will receive less. Even so, changes in rainfall patterns will increase, with more intense rainfall over shorter periods of time or no rainfall at all for longer periods, including more extreme events such as floods or droughts.