This study describes a model for incorporating regional variability in water supply costs into an energy planning model and the impacts of this on the most sustainable future energy mix for a country as well as the potential impact that energy related policies can have on the future of water supply availability in different regions. Modeling of the water-energy nexus is particularly relevant as water supply becomes more variable due to climate change and a potential constraint on development.

We draw on previous work examining likely future water use and food availability in Pakistan and extend the analysis to consider hydropower generation and energy demand in food production. The biophysical limits of the water-energy-food nexus are just one piece of the picture. We also draw on critical social science and resilience or adaptation-oriented perspectives to consider options usually deemed out of scope for biophysical scientists or water, energy and agricultural authorities.

To meet the global goals (SDGs) on energy and climate, local communities must move towards sustainable energy systems. Our study explores the indirect water uses linked to the supply of energy in 21 counties of Sweden – the country considered to be most advanced towards meeting the SDGs. Results show that the quantity and geography of energy-related water use vary greatly between counties. Further, local inventories of CO₂-emissions or direct water use poorly correlate with these variation.

The study used a combination of methods to investigate the feedback mechanisms of the food-water-energy nexus of the Shiroro hydropower station and its environs. The study shows that while there is a general decline in rainfall, coupled with low level of reservoir reliability, the area of agricultural landsue around the dam has increased significantly. In view of these realities, the study recommends that a roadmap to improve the operational coordination and management of the dam be put in place.

Water and food security are vital for improving livelihoods in disadvantaged rural areas. Understanding the water cycle is central to the design of watershed development works intended to improve water security. Better farming practices can help improve food security. It is also vital for social constraints and equity to be considered. Finally, a participatory learning approach is useful for ensuring that watershed development work is effective in producing long-term improvement in livelihoods.

A statistical model has been developed for forecasting domestic water demand in Haihe river basin of China due to population growth, technological advances and climate change. Historical records of domestic water use, climate, population and urbanization are used for the development of model. An ensemble of seven general circulation models (GCMs) namely, BCC-CSM1-1, BNU-ESM, CNRM-CM5, GISS-E2-R, MIROC-ESM, PI-ESM-LR, MRI-CGCM3 were used for the projection of climate and the changes in water demand.

A part of the population of Mexico is undergoing severe water crises vis-a-vis with the quantity and quality of water. The water authority's strategy dwells solely in infrastructure development to tackle the symptoms, not the causes. The paper summarizes how the causes of crises lie not in the lack of infrastructure but in a deficient management and governance. I did the research because I'd to influence on policy, and I did it through fieldwork and critical literature review.

As a result of global climate change nowadays Ukraine is facing the problem of environmental degradation of river basins. Thus, achieving an acceptable level of water security in Ukraine should be defined as the strategic objective of national water policy. The basic principles of a new water policy are supposed to be represented in Water Strategy of Ukraine. Integrated water management by the basin principle should serve as a main tool for achieving the objectives of country's water security.

It is shown that in agriculture technologies soil mulching with plant remains leads to increase in the ratio of actual transpiration to potential one and to increase in the yield of crops. Soil mulching with plant remains in combination with subsurface cultivation is the most efficient agricultural mode for the regions of the steppe and forest-steppe zones of the East-European (Russian) plain. This technology is most promising for development of agriculture in these regions.

Phosphorus is necessary for the development of crops and is therefore essential in safeguarding our food security. Several studies predict that our rock phosphate reserves, used to create synthetic, phosphatic fertilizers, may become depleted within this century. This study roughly approximates for which areas in Africa we can instead recover phosphorus from wastewater in order to reduce our dependancy on unsustainable rock phosphate.

Soil erosion susceptibility analysis was based on rainfall, Land use, slope and soil erodibility factor. GIS was used to produce the basin susceptibility to soil erosion using weight index of each factors. The results revealed that 106.66 km² (25.70 %) and 164.80 km² (39.7 %) of the basin have high and very high susceptibility to soil erosion. The over 50 % high susceptibility of catchment area has negative implications on ecosystem services of the s stream.