Geosciences and Environmental Change Science Center

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GECSC researchers conduct multi-purpose geologic mapping and topical scientific studies to address issues concerning geologic, climatic, ecosystem, and land surface changes; human interactions with the environment; and physical, chemical, and biological characterization of the Earth's surface and upper crust. 

News

Lake Fork Creek below Sugarloaf dam near Leadville
November 17, 2017

Bringing together decades of research and mapping, the U.S. Geological Survey just released a geologic map and companion pamphlet featuring the Arkansas River Valley region in north-central Colorado.  

View of snow-capped Borah Peak, Idaho
October 24, 2017

A new tool that gives users the most detailed view yet of the world’s mountains is now available from the USGS. And it’s as close as your computer or cellphone.

Image: Rio Grande and Cliffs in Boquillas Canyon, Big Bend National Park
September 14, 2017

A new U.S. Geological Survey report describes the below ground geology of the Rio Grande transboundary region of New Mexico and Texas, United States, and northern Chihuahua, Mexico.

Publications

Year Published: 2018

Quantitative tools for implementing the new definition of significant portion of the range in the U.S. Endangered Species Act

In 2014, the Fish and Wildlife Service (FWS) and National Marine Fisheries Service announced a new policy interpretation for the U.S. Endangered Species Act (ESA). According to the act, a species must be listed as threatened or endangered if it is determined to be threatened or endangered in a significant portion of its range (SPR). The 2014...

Earl, Julia E.; Nicol, Samuel; Wiederholt, Ruscena; Diffendorfer, Jay E.; Semmens, Darius J.; Flockhart, D. T. Tyler; Mattsson, Brady; McCracken, Gary; Norris, D. Ryan; Thogmartin, Wayne E.; Lopez-Hoffman, Laura
Earl, J. E., Nicol, S., Wiederholt, R., Diffendorfer, J. E., Semmens, D., Flockhart, D. T. T., Mattsson, B. J., McCracken, G., Norris, D. R., Thogmartin, W. E. and López-Hoffman, L. (2017), Quantitative tools for implementing the new definition of significant portion of the range in the U.S. Endangered Species Act. Conservation Biology. doi:10.1111/cobi.12963

Year Published: 2018

An empirical perspective for understanding climate change impacts in Switzerland

Planning for the future requires a detailed understanding of how climate change affects a wide range of systems at spatial scales that are relevant to humans. Understanding of climate change impacts can be gained from observational and reconstruction approaches and from numerical models that apply existing knowledge to climate change scenarios....

Henne, Paul; Bigalke, Moritz; Büntgen, Ulf; Colombaroli, Daniele; Conedera, Marco; Feller, Urs; Frank, David; Fuhrer, Jürg; Grosjean, Martin; Heiri, Oliver; Luterbacher, Jürg; Mestrot, Adrien; Rigling, Andreas; Rössler, Ole; Rohr, Christian; Rutishauser, This; Schwikowski, Margit; Stampfli, Andreas; Szidat, Sönke; Theurillat, Jean-Paul; Weingartner, Rolf; Wilcke, Wolfgan; Tinner, Willy

Year Published: 2017

Reply to the discussion of Pinter et al. on ‘Fluvial system response to late Pleistocene-Holocene sea-level change on Santa Rosa Island, Channel Islands National Park, California’ by Schumann et al. (2016)

We appreciate the thoughtful discussion offered by Pinter et al. (2017) because it gives us an opportunity to elucidate some of the main points of our study, address some apparent misinterpretations, and recapitulate one of our conclusions. Pinter et al.’s discussion emphasizes and reinforces some of the important concepts we presented but also...

Schumann, R. Randall; Pigati, Jeff
Schumann, R.R., and Pigati, J.S., 2018, Reply to the discussion of Pinter et al. on ‘Fluvial system response to late Pleistocene-Holocene sea-level change on Santa Rosa Island, Channel Islands National Park, California’ by Schumann et al. (2016): Geomorphology, v. 301, p. 144-146.