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To understand environmental change and its current trajectory requires a long-term perspective of the natural variability in the earth system. I study lake and glacial deposits that provide an archive of long-term climate variability. I have been involved in a variety of field-oriented projects, principally in Alaska where past environmental changes have been pronounced and future changes are anticipated to be greatest. The analytical phase of my research is devoted to analyzing the physical properties of lake sediments, particularly those from glaciated basins, and applying amino acid geochronology and paleothermometry to resolving Quaternary paleoclimatic and geochronological problems.
