The objective of this paper was three-fold. The paper highlights the synergies and tradeoffs in the interconnectedness of water-energy-food (WEF) for the agricultural corridor of North-South Al-Batinah, Sultanate of Oman. The study further evaluates the impacts of climate change on the WEF nexus. The results show that by 2099, Al-Batinah’s mean temperature will range from 2.0 to 3.5 °C and 1.0 to 2.5 °C for RCP8.5 and RCP4.5 scenarios, respectively, when compared to 1986–2005 historical simulations. From a precipitation standpoint, the analysis showed drier January and February months with significant heavy precipitation events in March for both scenarios when compared with the historical simulations. Thus, the significance and findings of this study further indicate there will be a persistent reduction in water availability which can affect crop yield. The excess wetness in March can lead to extreme climatic events such as flooding and inundation of farmlands. These impacts can trickle down to affect other links in the nexus such as the energy and food supply as well as Tanfeedh plans for economic diversification in agriculture and fisheries proposed by the central government. The study also recognizes the importance of data gaps and various sources of available data that could be integrated for improved planning and decision making. Therefore, a database system using the Unified Model Language was proposed. This platform, when implemented, will help Oman’s efforts in the next decade in strengthening the links between the WEF nexus, meeting the nexus’s demands as a result of climate change, population growth, etc., and also achieving sustainable development goals.

The early months of the COVID-19 pandemic brought about significant disruptions in food supply chains, which increased consumers’ concern about possible food shortages and price gouging. To ensure personal food security, many consumers began stockpiling food and water in unusually large amounts.The goal of this study was to investigate individual- and household-level predictors of food and water stockpiling (FWS) in the early months of the COVID-19 pandemic among Non-Latino Black and Latino adults.This study was a secondary analysis of cross-sectional survey data. Participants were 2,174 Non-Latino Black (66.4%) and Latino (33.6%) adults residing in a Midwestern state, who completed the survey in either May or June/July 2020.Participants were asked to self-report (yes or no) if they stockpiled food and/or water in the prior 7 days in response to the pandemic. A variety of variables was examined, including education level, annual income, employment status, concerns about COVID-19, and self-quarantine status. Crude and adjusted logistic regressions were used to identify variables associated with FWS.Non-Latino Black participants had lower odds of reporting FWS compared to Latinos (OR 0.64; 95% CI, 0.51-0.79). Similarly, participants who were not concerned about COVID-19 had lower odds of FWS compared with those extremely concerned (OR 0.37; 95% CI, 0.20 – 0.71). In contrast, odds of FWS were higher among participants who were self-quarantining all the time compared to those who were not (OR 2.16; 95% CI, 1.31 – 3.59).Results showed that Latinos, adults concerned about COVID-19, and self-quarantine status had significantly higher odds of FWS during the pandemic.

The food-energy-water (FEW) nexus provides leeway into the lateral transmission of price volatilities within the sectors. The problem is that any inflationary price tendencies in one of the FEW sectors will have direct and indirect effect on the others. The objective of the study was to ascertain the relationship between inflation in food, energy and water, and determine whether there were spill-overs, in South Africa. Monthly consumer price indices for food, energy and water for the period spanning from January, 2002 to December, 2020, were used. Parsimonious vector autoregressive (VAR) model was used in data analysis. The study found that prior to 2013, inflation rate was higher for food relative to water and energy, respectively. After 2017, water had a higher inflation rate relative to energy and food, respectively. Furthermore, energy inflation had positive impact on both water and food inflation, whilst water inflation also had positive impact on food inflation. The study concludes that there is a nexus in the lateral inflation between food, energy and water. Recommendations include building resilience within the nexus through decoupling food and other sectors from fossil fuel-derived energy. It is needed to strike a balance in biofuel and energy production policy to foster complementarities. Operational efficiencies within the sectors also need to be fostered.

ABSTRACT Tirta Sanita Bogor brine water contains high concentrations of sodium (Na). It also contains calcium (Ca) and magnesium (Mg). The purpose of this research is to make the food grade salt with relatively low Ca and Mg content. The process was carried out in two methods, the first method was chemical precipitation which was divided into two stages, the removal of the Mg element using a limestone compound (CaCO3) which has been calcined at 900 ̊C for 6 hours, and the removal of Ca element using Li2CO3 compound. The second method was traditional evaporation which was conducted using prism greenhouse technology. The brine filtrate was reacted with Na2CO3 and the results were analyzed using the ICP-OES. The results showed that the NaCl content was 80% by the chemical precipitation and traditional evaporation methods. Keywords: Brine water, Precipitation, Evaporation, Food grade salt

The interconnectedness of food, energy, and water systems – commonly referred as the FEW nexus - calls for the integrated study of these systems to improve resiliency of these natural resources and adapt to our changing world. In this article, we explore the state of FEW nexus research in Guatemala to highlight progress while also pointing out future research needs. A systematic literature review was conducted to identify peer-reviewed articles and grey literature published on this topic from January 2000 to May 2020. Articles were reviewed and classified to identify the Guatemalan study location, type, topic, and data sources. Only a limited number of studies explored the interconnectedness of FEW systems; 26% of articles (36 out of 138) focused on two aspects of the FEW nexus, while 20% (27 out of 138) focused on all three aspects. Water issues were the most commonly studied, with drinking water, hydroelectricity, and wastewater management being frequently discussed. We also identified a low rate of primary data generation, with only 42% articles (58 of 138) generating new data, and greater emphasis of nexus research in the grey literature. The Guatemalan FEW connections revolve primarily around three separate yet related spheres: clean water and sanitation, climate change and renewable energy, and urbanization and modernization. Further expanding initiatives that simultaneously address these three spheres would yield improved understanding of the interconnected roles that food, energy, and water play in improving the resiliency of natural resources and reducing multidimensional poverty in Guatemala.

The current and projected warming of the earth is unequivocal with humans playing a strong role as both perpetrators and victims. The warming on the African continent is projected to be greater than the global average with an increased average temperature of 3–6°C by the end of the century under a high Representative Concentration Pathway. In Africa, the Sub-Saharan region is identified as the most vulnerable to the changing climate due to its very low capacity to adapt to or mitigate climate change. While it is common to identify studies conducted to assess how climate change independently impacts water, land, or food resources, very limited studies have sought to address the interlinkages, synergies, and trade-offs existing between climate change, water, land, and food (WLF) resources as a system in Sub-Saharan Africa (SSA). The climate change and WLF security nexus, therefore, seeks to address this shortfall in literature and subsequently serve as a relevant source of information for decision-making and policy implementation concerning climate change mitigation and adaptation. In this study, 41 relevant studies were selected from Web of Science, Google Scholar, ResearchGate, and institutional websites. We provide information on the independent relationships between climate change and WLF resources, and further discuss the existing inter-linkages between climate change and the WLF security in SSA using the nexus approach, with recommendations on how decision making and policy implementations should be done using the climate change and WLF security nexus approach.

Water scarcity has been a critical concern in many countries of the world. The same concern has been discussed, analyzed and researched at different platforms to find better solutions to the challenges of water scarcity, and in most cases water scarcity directly influence food security in terms of food production. South Africa, being one of the water scarce countries that derives its food from the agricultural sector; water scarcity remains at the centre stage of the national socioeconomic debate. Water scarcity is one of the major challenges in many countries such as Zimbabwe and Ethiopia particularly for the farmers. However, there is insufficient information on the impact of water scarcity challenges on rural communities’ food security initiatives. This review is focused on unearthing water scarcity challenges in rural communities, their impact on agriculture and ultimately food security initiatives. This paves way for possible research areas, practical implications and strategies to mitigate water security effects on food security.