Urban water and energy systems have essential and multiple interlinkages that should be considered when assessing the effects of efficiency and sustainability measures. A prototype Reference Resource to Service System (RRSS) framework is used to represent the urban water-energy nexus and linked impacts of measures. Indicative analysis based on example data for New York City reveals large variability in multi-resource and climate mitigation benefits. This paper relates to SDG's 6,7 and 11.
The study addresses how food production can continue using reduced water whilst at the same time bring about improved health. The growing population in India will have an impact on water availability to be used in agriculture and so the study looks at dietary patterns which use less water. They find important synergies in diets with lower water use and positive health effects. This is in-line with the achievement of SDG 2, its related targets and to a further extent SDG 6.
Maize growing under plastic

Critics claim that maize can cause unwanted environmental impacts. But supporters of the crop are able to show how by use of cover crops it can be grown responsibly, reducing or eliminating, for example, nutrient leaching and soil erosion. In south-west England, a Wessex Water project is using cover crops to protect and improve drinking water quality by working with growers whose farms surround boreholes and reservoirs that supply water for human consumption. Steps like this can contribute to SDG 6 to ensure sustainable management of water and SDG 12 to ensure sustainable production.

Giving the World Access to Water - Elsevier Atlas
Despite the increased attention the sixth Sustainable Development Goal (clean water and sanitation) has brought, access to water in Sub-Saharan Africa is worse than ever: there are more people without access to water now than there were in 1990. In order to fix the problem we need to understand what’s going wrong with our current approaches. That was the aim of an Atlas Award-winning study published in Water Resources and Rural Development, by researchers at Glasgow Caledonian University in Scotland, the University of Malawi in Malawi and the University of Lusaka in Zambia. Interestingly enough, since women and school aged girls are typically tasked with water fetching, by providing water access and sanitation authors feel there is an effect on others SDG like SDG 10 (reduced inequalities), SDG 4 (quality education) and SDG 5 (gender equality)
Effective communication to citizens is of prime importance during public health crises involving water. This paper takes a sequential mixed method approach to the problem of communicating drinking water risks prevention of exposure to health risks in cities, related to SDG 6: clean water and sanitation.
The expansion and operation of water supply systems under growing demands, hydrologic variability, and water scarcity requires strategic decisions on supply sources for reducing and improving reliability and flexibility. This paper provides an integrated framework to optimize water supply system expansions using dynamic programming and combining short and long term water supply source optimization using quadratic programming. This relates to SDG 6.

Solar Energy Desalination Technology, Chapter 1, 2017, Pages 1–46

To advance goal 6 (clean water and sanitation), this chapter explores different desalination processes to make seawater drinkable, which is an obvious solution to any water shortages. Given the high-polluting energy required in the desalination process, solar-desalination technologies is considered.

Climate Risk Management, Volume 16, 2017, Pages 59-72

As the climate continues to change, climate scientists have projected changes in water quantities available for human and other uses. This quantitative study examines how in the US, state water plans and state hazard mitigation plans address climate change. The primary objective of this study is to determine what drives states to plan for the impacts of a changing climate, addressing SDG 13 on climate action.

Sustainable Cities and Society, Volume 28, 2017, Pages 450-452

Contributing to SDGs 6, 7 and 13, this paper discusses the CO2 footprint of California’s drought during 2012–2014. The authors show that California drought significantly increased CO2 emissions of the energy sector by around 22 million metric tons, indicating 33% increase in the annual CO2 emissions compared to pre-drought conditions. They argue that CO2 emission of climate extremes deserve more attention, because their cumulative impacts on CO2 emissions are staggering. Most countries, including the United States, do not have a comprehensive a nationwide energy-water plan to minimize their CO2 emissions, therefore the authors argue that developing a national water-energy plan under a changing climate should be prioritized in the coming years.
An agent-based model is created using data for household characteristics and outdoor water use to calculate water demands. This model represents utility response to water shortages to enact residential restrictions. The agent-based model is coupled with reservoir simulation for a case study, and results are compared to historic data. Sustainability of water policies is evaluated for climate scenarios created using a stochastic reconstruction framework. This is related to SDG 6.