The purpose of this paper is to review and analyze the water, energy, and food nexus and regions of study, nexus keywords and stakeholders in order to understand the current state of nexus research.

It starts with the hypothesis that to date the research in this area has been somewhat fragmented and there is no clear definition of the term. In addition, the relationships of all three resources such as water–energy, water–food and/or water–energy–food are interrelated and interdependent, which implies that the complexity of the nexus system has not yet been fully clarified. 

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