Guppy, Lisa; Villholth, Karen; Smakhtin, Vladimir; Uyttendaele, Geertrui; (2018) Groundwater and Sustainable Development Goals: Analysis of Interlinkages. (Unu-Inweh Report Series 04 ). United Nations University Institute for Water, Environment and Health (UNU-INWEH): Hamilton, Canada.

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Abstract

Groundwater represents 97% of the world’s available freshwater resources and is extensively abstracted throughout the world. While abundant in a global context, it can only de developed to a certain extent without causing environmental impacts. Also, it is highly variable across the globe, and where it is heavily relied on, it is less renewable. Hence, it is critically important that this resource is managed sustainably. However, the Sustainable Development Goals (SDGs) of the 2030 Development Agenda do not, as a rule, account explicitly for the significant role that groundwater plays and will continue to play in sustainable development. This report aims to unpack and highlight this role through consistent analysis of the interlinkages between groundwater and the targets of the SDGs. The key features of groundwater relevant to the SDGs are its use, management and sustainability. The methodology used to analyse groundwater interlinkages with SDG targets includes, first, identification of ‘evidence-based’ and ‘logical’ interlinkages. The first type of interlinkages is supported by existing data, while the second is by information and logic that needs to be drawn from existing bodies of relevant research. While only a few interlinkages may be seen at present as “evidence-based”, more data are continuously emerging to make more interlinkages supported by hard-core evidence. Subsequently, the interlinkages are classified into either ‘reinforcing’, ‘conflicting’ or ‘mixed’ – depending on whether achievement of a target will have predominantly positive, negative, or mixed impact on groundwater. The interlinkages are also classified into ‘primary’ and ‘secondary’, depending on how strong and direct the impacts on groundwater from achieving the targets may be. The report presents a summary of key interlinkages, and subsequently provides the narrative of all ‘primary’ ones. The analysis suggests that more than half of interlinkages are ‘reinforcing’, while only a few are ‘conflicting’. From a policy perspective i) conflicting interlinkages are the most critical and difficult ones to manage, and ii) it is important to draw synergies between SDG initiatives and groundwater to allow reinforcing interlinkages to materialise. Nearly a third of all identified interlinkages were classified as ‘mixed’. This means that when target activities are planned, careful consideration must be given to possible impacts on groundwater to avoid unintended negative outcomes that may not be evident at first. Primary interlinkages that constitute 43% of all may be the easiest to understand and the most important to plan for. However, there are even more secondary interlinkages. This means that groundwater experts need to be able to share knowledge to a range of actors involved in addressing the targets with secondary interlinkages to groundwater, and vice versa.

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