Research Fellow
University of Michigan
Earth and Environmental Sciences

2534 C.C. Little Building
1100 North University Ave
Ann Arbor, MI  48109-1005

ianzw (at)

My research is broadly focused on using the sedimentary record to understand the past climate of the Earth. One way I do this is by using measurements of heavy carbon and oxygen isotopes in carbonate rocks and fossils to obtain quantitative information about past environments. I am also interested in understanding how these materials change over geologic time, and the effect such changes have on their ability to preserve paleoenvironmental information.

***Summer 2017 update***
    Read about my work on the effects of melting the Greenland Ice Sheet in Geospace:
    And listen to me talk about this work on WILS-FM here: