Water, energy, and food (WEF) are essential for human welfare, and the sustainable supplies of WEF are the targets of the sustainable development goals (SDGs). Continuous pressure on these resources from a rapidly increasing population, coupled with expectations of high standards of living, presents a challenge for future generations. Although the strong dependence on other countries for these imports should be avoided for social security, few countries are self-sufficient in all WEF. It is vital to increase the self-sufficiency rate. Moreover, renewable resources should be employed for a sustainable future.