I am a Research Scientist at the Cooperative Institute for Research in Environmental Sciences at the University of Colorado, Boulder. I study long-term changes in tropical climate and ecosystems, from the geologic past to the 21st century. My work is in partnership with the Climate Processes Research Group at Oregon State University, the Cobb Lab at Georgia Tech and the Paleoclimate Group at the National Center for Atmospheric Research.

You can follow me on Twitter at @other_rock.

Photos from the field (above): Bofedales in the Peruvian Andes; Elephants in Maasai Mara, Kenya; the Gheralta range in Tigray, Ethiopia; Petroglyphs in Arches National Park, USA.


4/14/2016: We’re back from a successful field excursion to the Okavango Delta, Botswana. Stay tuned for field blogs on the National Geographic and CIRES websites!

4/8/2016: New paper published today on stable isotopes in water vapor and precip in Papua New Guinea. Check it out here.

1/13/2016: Our paper on glacial hydroclimate in Indonesia is out! It’s free to download until March 3 if you use this link.