Sustainable Development of Energy, Water, and Environment Systems is dedicated to the advancement and dissemination of knowledge on the methods, policies, and technologies for increasing the sustainability of development by de-coupling growth from the use of natural resources and by transition to a knowledge-based economy, all while taking into account the economic, environmental, and social pillars of sustainable development. One of the main issues of the coming decades is to improve efficiencies by integrating various life-supporting systems, using the excess from one as a resource in another in the correct moment. Integrating electricity, heating, cooling, transport, water, buildings, waste, wastewater, industry, forestry, and agriculture systems will be pivotal towards sustainable development. In order to make efficiency improvements happen, political aspects of sustainable development need to be considered as well, thus implying the need for taking account of, among others, Sustainable Development Goals, resource and political security, long term planning, the role of political leaders and of voters, energy democracy, and community and citizen participation in the energy transition. Sustainability is also a perfect field for interdisciplinary and multi-cultural evaluation of complex systems. Taking this into consideration, the Special Issue is meant to provide an opportunity for researchers in wide range areas to originate, discuss, share, and disseminate new ideas.
Keywords: sustainability comparisons and measurements; green economy and better governance; susatainable resilience of systems; environmental policy and management; energy policy; energy systems; renewable energy sources; waste and wastewater treatment; water-energy nexus; energy and water efficiency.