virtual water tradegrid analysisThe best available high-resolution precipitation, GDP, available freshwater and withdrawal data sets are used in a combined global analysis of physical and economic water scarcity at 50km resolution. We find that approximately 40.7 million people are living in areas ...
A. Decrease in global population. B. Limited supply of fresh water and increasing demand. C. Excessive rain. D. Lack of E. conomic activities. 相关知识点: 试题来源: 解析 B。解析:文章中提到随着全球人口增加和经济活动扩张,对水的需求快速上升,而淡水供应有限,这是水资源短缺的主要原因。反馈...
Water scarcity is an increasing problem in many parts of the world, yet conventional supply-side economics and management are insufficient to deal with it. In this book the role of water trading as an instrument of integrated water resources management is explored in depth. It is also shown to...
For the first time in human history, human use and pollution of freshwater have reached a level where water scarcity will potentially limit food production, ecosystem function, and urban supply in the decades to come. The primary reason for this shortage is population growth, which has increased...
Intensification of agricultural water scarcity can affect food production, threatening food security, particularly to the poor (J. Huang et al., 2017; Pastor et al., 2019; Tong et al., 2016; Yin et al., 2017). On the other hand, increased water use in economic sectors can deleteriously...
The inadequate availability of clean water presents systemic risks to human health, food production, energy generation and ecosystem functioning. Here we evaluate population exposure to current and future water scarcity (both excluding and including water quality) using a coupled global hydrological and ...
Freshwater scarcity is a growing concern, placing considerable importance on the accuracy of indicators used to characterize and map water scarcity worldwide. We improve upon past efforts by using estimates of blue water footprints (consumptive use of ground- and surface water flows) rather than wate...
water resources such as the desalination of brackish water, seawater, and wastewater. Reverse osmosis desalination is a highly efficient method to increase water supplies and make clean, affordable water accessible to millions of people. However, to ensure universal access to water, various measures ...
We find that the structure of global virtual water networks changes significantly after adjusting for water scarcity. In addition, when indirect virtual water is appraised the Heckscher-Ohlin Theorem can be validated. 展开 关键词: Virtual water multi-region input-output analysis regional aggregation ...
Urbanization and climate change are together exacerbating water scarcity—where water demand exceeds availability—for the world’s cities. We quantify global urban water scarcity in 2016 and 2050 under four socioeconomic and climate change scenarios, an