Hypothetical Case Study

Small islands are among the most vulnerable places to the effects of climate change and hence are given special attention in IPCC Assessment Reports. In this hypothetical study, a simplified circular island is simulated to assess the impacts of decreasing recharge rates on groundwater resources. The groundwater stored within the freshwater lens enclosed by the saline water serves as the only source of freshwater; like most small islands having no surface water or streams and therefore being fully reliant on rainfall and groundwater harvesting [5]. This dependency on rainfall significantly increases the vulnerability of small islands to future changes in precipitation. Moreover, increasing demand related to population and economic growth will exert additional stress on existing water resources. That is why such a system is chosen to examine the effects of decreasing recharge rates and increasing demand on the freshwater resources.

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