reasons for water shortage

There are many reasons for water shortage one of the major cause is the continuous growth of population versus fixed water supply, the chmatic change and severe drought can also be a main causing reason on , even water pollution has a direct effect on the scarcity of water . The economic them to use funds for development of programmers others than reducing water scarcity. Even more there some social and cultural a aspects which 
have a negative effect on environment such as deforestatio

growth of population 

deforestation