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Water stress and sustainability challenges: Evidence from sub‐Saharan Africa
Sub‐Saharan Africa is considered one of the hotspots most likely to be affected by water problems due to the region's heavy reliance on agriculture. This study has three objectives. First, it aims to assess the driving factors that influence environmental performance in Sub‐Saharan countries. S...
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Published in: | World water policy 2023-11, Vol.9 (4), p.893-912 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Sub‐Saharan Africa is considered one of the hotspots most likely to be affected by water problems due to the region's heavy reliance on agriculture. This study has three objectives. First, it aims to assess the driving factors that influence environmental performance in Sub‐Saharan countries. Second, it investigates the impact of water scarcity on sustainable development in sub‐Saharan nations by utilizing available data on the environmental performance index (EPI) from 2000 to 2010, which is the only complete and accessible time series. Third, it seeks to identify the effect of carbon dioxide emissions on the EPI. To achieve these objectives, the study employs an empirical dynamic autoregressive distributed lag (ARDL) approach and a panel of selected countries in sub‐Saharan Africa to examine long‐term equilibrium and short‐term adjustments. The results indicate a positive correlation between population growth and EPI in Angola, Cameroon, Ghana, and South Africa. In the long term, the population coefficient exhibits a negative and significant relationship with EPI. Maternal mortality rates were found to have 1% relevance, while health spending was deemed irrelevant. Both carbon emissions and the proportion of the population with improved water sources had a negative and significant impact on the environmental index. The findings underscore the conflicts between water demand and other explanatory variables on water stress in sub‐Saharan countries. Thus, the study recommends the urgent formulation of regional policies to effectively safeguard future generations from the threat of water poverty.
摘要
由于严重依赖农业, 撒哈拉以南非洲地区被认为是最有可能受到水问题影响的热点地区之一。本研究有三个目标。第一, 本研究旨在评估影响撒哈拉以南非洲国家环境绩效的一系列驱动因素。第二, 利用2000‐2010年环境绩效指数(EPI)的现有数据 (这是唯一完整且可获取的时间序列), 调查水资源短缺对撒哈拉以南国家可持续发展的影响。第三, 本研究试图确定二氧化碳排放对 EPI 的影响。为了实现这些目标, 采用了一项实证动态自回归分布滞后模型 (ARDL)方法和来自撒哈拉以南非洲选定国家的小组数据, 以检验长期平衡和短期调整。结果表明, 安哥拉、喀麦隆、加纳和南非的人口增长与EPI呈正相关。从长期来看, 人口系数与EPI存在显著的负相关关系。产妇死亡率被发现有百分之一的相关性, 而医疗支出被认为不具有相关性。碳排放和享有更佳水源的人口比例都对环境指数产生显著的负面影响。研究结果强调了撒哈拉以南非洲国家的用水需求与“关于缺水的其他解释性变量”之间的冲突。因此, 本研究建议紧急制定区域政策, 以有效保护子孙后代免受水资源贫困的威胁。.
Resumen
El África subsahariana se considera uno de los puntos críticos con mayor probabilidad de verse afectado por problemas de agua debido a la gran dependencia de la agricultura de la región. Este estudio tiene tres objetivos. En primer lugar, tiene como objetivo evaluar los factores impulsores que influyen en el desempeño ambiental en los países subsaharianos. En segundo lugar, investiga el impacto de |
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ISSN: | 2639-541X 2639-541X |
DOI: | 10.1002/wwp2.12140 |