Photos Sampling lake sediment cores in the Prairie Pothole Region, NDSampling rig for summer in the Prairie Pothole RegionSampling rig for wintertime in the Prairie Pothole RegionPaula Dalcin Martins processing core material from the Prairie Pothole Region, NDSampling gear in the Prairie Pothole Region, NDSampling gear in the Prairie Pothole Region, NDProf Mike Wilkins collecting sediment core in the Prairie Pothole Region, NDPaula Dalcin Martins about to collect a lake sediment core in the Prairie Pothole Region, NDCasey Saup filtering river water on the East River near Crested Butte, COProf. Audrey Sawyer processing samples on the East River, Crested Butte, COCorey Wallace setting up a Campbell logger near the East River, Crested Butte, COView over the East River, Crested Butte, COAnne Booker loading an NMR instrument at EMSLThe MSEEL hydraulic fracturing research site near Morgantown, WVReb Daly processing pristine shale core for microbiome analysesWellheads at a hydraulic fracturing site in West Virginia