Jasechko, S; Perrone, D; Befus, KM; Bayani Cardenas, M; Ferguson, G; Gleeson, T; Luijendijk, E; ... Kirchner, JW; + view all Jasechko, S; Perrone, D; Befus, KM; Bayani Cardenas, M; Ferguson, G; Gleeson, T; Luijendijk, E; McDonnell, JJ; Taylor, RG; Wada, Y; Kirchner, JW; - view fewer (2017) Global aquifers dominated by fossil groundwaters but wells vulnerable to modern contamination. Nature Geoscience , 10 pp. 425-429. 10.1038/ngeo2943.