Water security in sub‐Saharan Africa: Understanding the status of sustainable development goal 6

Abstract

The world is nearing the 2030 target‐year by which sustainable development goals (SDGs) should be achieved. While other developing regions seem to be making progress toward achieving SDG6, sub‐Saharan Africa (SSA) is lagging behind significantly, particularly with regard to access to water supply and sanitation (WSS). As a result, most studies evaluating progress toward the achievement of water security SDGs in SSA have focused on WSS while the rest of the SDG6 targets have received scant attention, often using fragmented or incomplete evidence. Here, we fill this knowledge gap by conducting a comprehensive assessment of the status of SDG6 in all 48 countries in SSA. We provide a review of the progress made, the challenges affecting each SDG6 target and examine the different political, socioeconomic, and environmental factors with potential to undermine the achievement of SDG6 in the region. Our review clearly demonstrates that it is likely that most countries may not achieve water security by 2030. The complex nature of the challenges and factors impeding the achievement of water security in SSA outlined here suggests that a holistic intervention involving local, national, and international stakeholders and the research community is urgently needed to address SDG6 if the 2030 target date is to be met. Approaches to enhance water security may equally consider: (a) underpinning peace and security in SSA and (b) the commitment of more financial resources by donors particularly during this period of COVID‐19 pandemic. This article is categorized under: Human Water Human Water > Water Governance Engineering Water > Planning Water

Water security assessment in ungauged regions using the water balance and water footprint concepts and satellite observations

“…Our results also indicated that population-driven water scarcity is more apparent in the urban areas with a high-population density than in districts with a low-population density. These findings are in line with recent calls to identify the factors driving water scarcity at the local scale in Africa (Nkiaka et al 2021a).…”

“…Therefore, the objectives of this study are to (1) conduct a spatiotemporal trend analysis of precipitation and temperature across all districts in Anglophone Cameroon; (2) combine the water balance and water footprint concepts and satellite observations to estimate water availability across all districts in Anglophone Cameroon; and (3) assess demand-driven water scarcity in terms of blue and green water scarcities and population-driven water scarcity quantified using the Falkenmark index. The objectives of this study are in line with recent calls to identify water scarcity hotspots at the local scale to support effective decision-making (Quinteiro et al 2019;Nkiaka et al 2021a).…”

Delineation of Groundwater Potential zone using geospatial tools and Analytical Hierarchy Process (AHP) in the State of Uttarakhand, India

“…According to the Intergovernmental Panel on Climate Change 2018 (IPCC, 2018), human activity has caused a 1 0 C increase in global temperature since pre-industrial times, and this rise is expected to reach 1.5 0 C between 2030 and 2050. Climate change potential effects are cause for concern because climate in uences not only the hydrologic cycle (Singh et al, 2018), but also the stream ow rate of rivers, groundwater systems, freshwater availability, and other factors related to human life, migration, and socioeconomic characteristics (IPCC, 2014; EPA, 2014; IPCC, 2018; Amanambu et al, 2020; Nkiaka et al, 2021). Several studies have shown that river stream ow rates are decreasing at a rapid rate in various parts of the world (Bao et al, 2012;Givati et al, 2019;Dudley et al, 2020), despite a rapidly growing population (Cleland, 2013;Velis et al, 2017).…”

Evaluating the accuracy of gridded water resources reanalysis and evapotranspiration products for assessing water security in poorly gauged basins

“…For example, there are only a few case studies reporting on the use of these products in the upper Blue Nile River basin (Koukoula et al, 2020;Lakew et al, 2020) and the Zambezi River basin (Gründemann et al, 2018). Considering the scale of water insecurity in Africa, compounded by acute data scarcity (Nkiaka et al, 2021), we feel that evaluating the performance of gridded WRR products in Africa may enhance their adoption in water management in the region. On the other hand, several studies evaluating the performance of gridded data in Africa have focused mostly on precipitation (Dinku et al, 2018;Satgé et al, 2020) while few studies that have evaluated gridded ET products focused on large basins (Blatchford et al, 2020;Weerasinghe et al, 2020;McNamara et al, 2021), and mostly adopted an annual timescale.…”