AGU member since 1999. Professor of geology, Geology Department, Grand Valley State University, Allendale, Mich. Volunteer experience includes secretary, Paleoceanography and Paleoclimatology (PP) focus group, AGU (2009–2010); member, Program Committee, AGU Fall Meeting (2007–2011), PP focus group (2006–2010), Global Environmental Change (2011); host for an email contact list for communicating job ads, conference announcements, etc., within the PP focus group; series editor, Earth Systems at Nature Education Knowledge Project; chair, University Academic Senate, Grand Valley State University (2011– 2013); contributor, Regional Science Olympiad: Fossils, Rocks and Minerals, Oceanography (1999–present).