Hvalsø church,  Norse Eastern Settlement

South Greenland 2011

Ph.D. Geology, University of Toronto 2007

M.S. Geosciences, University of Massachusetts, Amherst 2001

B.A. (Hon.) Geology, Vassar College 1998


I am a Quaternary paleoecologist with a specialization in Arctic environmental change. Specifically, I use diatoms and other fossil remains in lake sediments to reconstruct changing environmental conditions resulting from eutrophication, 20th and 21st Century climate warming, or Holocene natural variability.


I work for the British Antarctic Survey in Cambridge, UK


In the news!

New Scientist piece

CBC Quirks and Quarks interview mp3

National Geographic news piece