The Water and Society Conference is to be reconvened in 2021 following the success of the previous meetings, the first of which was held in Las Vegas in 2011, followed by a meeting in 2013 in the New Forest, UK, home to the Wessex Institute; La Coruna, Spain (2015), Seville, Spain (2017) and Valencia, Spain (2019). Over the centuries, civilisations have relied on the availability of clean and inexpensive water. This can no longer be taken for granted as the need for water continues to increase due to the pressure from a growing global population demanding higher living standards. Agriculture and industry, major users of water, are at the same time those that contribute to its contamination. Water distribution networks in urban areas, as well as soiled water collection systems, present serious problems in response to a growing population as well as the need to maintain ageing infrastructures. Many technologically feasible solutions, such as desalination or pumping systems are energy demanding but, as costs rise, the techniques currently developed may need to be re-assessed. Event will address the interaction between water and energy systems. This meeting will encourage trans-disciplinary communication on issues related to the nature of water, and its use and exploitation by society. The conference is motivated by the need to bridge the gap between the broad spectrum of social-political sciences and humanistic disciplines and specialists in physical and environmental sciences.