On the Monday edition of GPB’s Morning Edition there is an interview talking about growing alfalfa in the Arizona desert.  The story can be heard from this location.

https://www.npr.org/sections/thesalt/2015/11/02/453885642/saudi-hay-farm-in-arizona-tests-states-supply-of-groundwater

I am not putting this story here to say why the hay is growing, but to hopefully get you to think of why we should conserve water resources through different means.