New challenges in biogeochemical gradient research

At a recent workshop focusing on biogeochemical gradients predominantly in groundwater and sediments, 32 North American and German scientists discussed research needs in three areas including (1) redox and microbes; (2) contaminants, isotopes, and fluxes; and (3) instruments, monitoring, and modeling. The presentation topics at the workshop at the Eberhard Karls University of Tübingen in Germany ranged from new concepts for monitoring …