70% of Hyd over-exploits groundwater: Records / Uncovering the link between meltwater and groundwater in mountain regions / New research identifies ecosystems that could be threatened by declining groundwater levels / New study shows how quickly surface water moves to groundwater reservoirs across Australia / B.C. doesn't know where all its groundwater is going. Experts worry as drought looms / Slight increase in groundwater table across the city / Six-million-year-old groundwater pool discovered deep under Sicilian mountains