The overall direction of this research is toward increased understanding of interactive processes in the Earth's physical environment and the development of a more coherent picture of its sensitivities to natural and anthropogenic change. The carbon dioxide greenhouse effect is a continuing source of research problems, and one of the most pressing problems is how to determine the onset of a theoretically predicted warming. Both of these topics receive considerable attention from CIRES researchers.
David Harning
I'm a paleoclimatologist who uses geologic records of Earth history to understand the sensitivity of the Arctic in a warmer, wetter, and human-dominated world. I specialize in using lipid biomarkers, stable isotopes, and ancient DNA preserved in lake and marine sediments as well as generating modern proxy calibrations to improve our estimates of past climate. I also have strong interests in geochronology, glacier history, the carbon cycle, and climate change solutions (e.g., carbon dioxide removal().
