A new paradigm of water, food, and energy nexus.

In recent decades, global forecasts show that the demands for freshwater, energy, and food have been affected by population growth, economic development, international trade, and increasing urbanization and food diversity. Moreover, cultural changes and other phenomena have adversely affected the water, energy, and food (WEF) resources demand. Consequently, climate change adverse impact, which is an undesirable phenomenon, will be increased at a staggering rate. Numerous studies have emphasized that the lack of integrated and systematic management strategies threaten these indispensable resources' ability to meet growing demand. In many countries, the security of WEF resources, which is related to each other, has become three non-traditional security challenges that overshadow these communities' development. Before realizing the importance of interactions between these three vital resources, the management strategies were typically used for one source, which was completely independent of the other two. Since these strategies did not consider the interactions between the three systems, the applied strategies' results were sometimes contradictory. Also, due to the lack of attention to these three sectors' vital connections, the competition level among these systems has been increased. Therefore, in recent years, the study of the complex interactions and connections between these resources has led to the emergence of a new term called WEF nexus in the scientific communities. Most studies about the WEF nexus have only described the current situation or, ideally, analyzed several predetermined scenarios. However, the adopted approach should be able to analyze different scenarios and be efficient and robust enough to develop a variety of strategies and utilize them for macro-policies. In this study, after reviewing the complex interactions between the WEF systems, it was tried to introduce a novel paradigm for the WEF nexus, which concentrates on expanding the possible space of WEF nexus.