Current understanding of groundwater recharge and groundwater drought in Sweden compared to countries with similar geology and climate

Recently, groundwater in Sweden has attracted media attention due to supply shortages caused by dry periods and low levels. About half of Swedish drinking water stems from groundwater. The small aquifers are highly dependent on frequent sufficient recharge. Groundwater recharge forms the link between meteorological drought thus main climate change sustainable supply. This study evaluated whether current knowledge is mitigate impacts change. A review international literature regions with conditions similar was performed. National compared links studies evaluated. survey among experts complemented study. Findings that research been scarce over last decades seem not have taken much notice literature. It concluded well prepared predict impact resources, as most crucial process linking understood. a strong focus Sweden, however, results also relevant for countries geology climate. One conclusion often remain unique, hardly transferable comparable. Two or more independent rarely applied parallel, verification based direct observations common. raises concerns about reliability predictions