Topic
Water scarcity
About: Water scarcity is a research topic. Over the lifetime, 11579 publications have been published within this topic receiving 228756 citations. The topic is also known as: water shortage.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, the authors reviewed the use of non-conventional water resources (NCW) in agriculture, landscaping, and forestry in the Middle East and North Africa (MENA) region.
112 citations
TL;DR: In this article, the consequences of climate change related impacts on such interplays between climate-change affected sectors are analyzed and how electricity exchanges between countries in Europe are affected and threatened by climate change because of the higher risk of water supply shortages due to more frequent drought and heat-wave incidences.
112 citations
TL;DR: In this paper, the authors propose a governance capacity framework focusing on five governance challenges: 1) water scarcity, 2) flood risk, 3) wastewater treatment, 4) solid waste treatment and 5) urban heat islands.
Abstract: The challenges of water, waste, and climate change in cities are overwhelming and underpin the importance of overcoming governance issues impeding adaptation These “governance challenges” typically have fragmented scopes, viewpoints, and responsibilities As there are many causes leading to this uncertainty and disagreement, there is no single best approach to solve these governance challenges In fact, what is necessary is iterative and requires governance capacity to find dynamic long-term solutions that are supported by flexible interim targets, so as to anticipate emerging barriers and changing situations The literature contains a plethora of governance gaps, barriers, and capacities, which sometimes overlap, are contradictory and case-specific, and reflect disciplinary scopes We argue that a balanced set of well-developed conditions is needed, to obtain the governance capacity that enables effective change Therefore, we aim to obtain deeper understanding of the key conditions determining the urban water governance capacity, by developing an integrated empirical-based approach that enables consistent city comparisons and facilitates decision-making We propose a governance capacity framework focusing on five governance challenges: 1) water scarcity, 2) flood risk, 3) wastewater treatment, 4) solid waste treatment and 5) urban heat islands Nine governance conditions, each with three indicators, are identified and empirically assessed using a Likert-type scoring method The framework is illustrated by a case study on Amsterdam, the Netherlands We conclude our approach shows great potential to improve our understanding of the key conditions determining the governance capacity to find solutions to the urban challenges of water, waste, and climate change
111 citations
TL;DR: Wang et al. as mentioned in this paper proposed a DEA-based approach to analyze the efficiency of regional urban water use and wastewater decontamination systems in China, which can find inefficiencies caused by internal factors between sub-systems, which cannot be identified using the traditional DEA approaches.
Abstract: Rapid economic growth and urbanization in China have resulted in great water consumption in recent years. China has been facing increasingly severe water shortage crisis, especially in urban areas. This paper focuses on performance analysis for regional urban water use and wastewater decontamination systems in China. To this end, a DEA-based approach is developed. In the proposed approach, the efficiency of the system is decomposed into water use efficiency and wastewater decontamination efficiency. In the wastewater decontamination sub-system, the purified wastewater (reusable water) is treated as a desirable output; while in the water use sub-system, it is incorporated as a fixed input, which cannot be decreased in the process of efficiency optimization. The efficiency of the system is defined as the average of the two sub-systems’ efficiencies. The proposed approach can find inefficiencies caused by the internal factors between sub-systems, which cannot be identified using the traditional DEA approaches. We finally apply the proposed approach to analyze the efficiencies of regional urban water use and wastewater decontamination systems in China. Based on the application results, some findings and implications for efficiency improvement of urban water management in China are achieved.
111 citations
TL;DR: Overexploitation of groundwater and intensive irrigation in major canal commands has posed serious problems for groundwater managers in India as discussed by the authors, such as depletion of water tables, saltwater encroachment, drying of aquifers, groundwater pollution, water logging and salinity, etc.
Abstract: Overexploitation of groundwater and intensive irrigation in major canal commands has posed serious problems for groundwater managers in India. Depletion of water tables, saltwater encroachment, drying of aquifers, groundwater pollution, water logging and salinity, etc. are major consequences of overexploitation and intensive irrigation. It has been reported that in many parts of the country the water table is declining at the rate of 1-2 m/year. At the same time in some canal commands, the water table rise is as high as 1 m/year. Deterioration in groundwater quality by various causes is another serious issue. Increased arsenic content in shallow aquifers of West Bengal reported recently has created panic among the groundwater users. Summed together, all these issues are expected to reduce the fresh water availability for irrigation, domestic and industrial uses. If this trend continues unchecked, India is going to face a major water crisis in the near future. Realizing this, the Government of India has in...
111 citations