Our research integrates field groundwater and permafrost analyses and laboratory experiments to assess the effect of warming temperatures on metal release from previously frozen soils as they thaw. Field samples enable us to assess present-day water quality in a wide range of geological and hydrogeological settings. Temperature-controlled laboratory experiments are artificially thawing permafrost samples under a range of geochemical conditions. Collectively, this information is being used to provide a better understanding on sources of geogenic metal(oid) contaminants in permafrost regions and delineating groundwaters vulnerable to deteriorating quality as a result of warming climate conditions and permafrost degradation