Problems at the nexus of Food, Energy and Water Systems (FEWS) are among the most complex challenges we face. Spanning simple to complex temporal, geographic, social, and political framings, the questions raised at this nexus require multidisciplinary if not transdisciplinary approaches. Answers to these questions must draw from engineering, the physical and biological sciences, and the social sciences. Practical solutions depend upon a wide community of stakeholders, including industry, policymakers, and the general public. Yet there are many obstacles to working in a transdisciplinary environment: unfamiliar concepts, specialized terminology, and countless "blind" spots. Graduate education occurs in disciplinary 'silos', often with little regard for the unintended consequences of our research. Existing pedagogical models do not usually train students to understand neighboring disciplines, thus limiting student learning to narrow areas of expertise, and obstructing their potential for transdisciplinary discourse over their careers. Our goal is a virtual resource center-the INFEWS-ER-that provides educational opportunities to supplement graduate students, especially in their development of transdisciplinary competences. Addressing the grand challenges at the heart of the FEWS nexus will depend upon such competence. Students and scholars from diverse disciplines are working together to develop the INFEWS-ER. To date, we have sponsored both a workshop and a symposium to identify priorities to design the initial curriculum.

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This review article provides a synthesis of the most significant transitions taking place in the energy systems of the USA in 2018. These include the leveling off of the total consumption of primary energy and electricity, a shift away from coal-fired electricity generation, advances in the efficiency energy conversions and end-uses, as well as the onshoring and offshoring of some energy applications. Transitions are considered with a long-term, sociotechnological perspective using data from the past 60 years, recognizing the impacts technological developments, economics, public policy, cultural preferences, and concerns about environmental impacts such as climate change. Different transitions are in different phases of development with different scales of impact, with some likely to only become significant over the next few decades.

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