I am a native of southwestern Minnesota, being raised on a typical Midwestern family farm. My degrees in soil science are from the University of Wisconsin-Steven Point and the University of Wisconsin-Madison. I joined the USDA Agricultural Research Service in 1993. My current research focus is on soil organic carbon dynamics and greenhouse gas production in agroecosystems. These efforts include studies on the effects of land use change and in particular agroforestry as climate change adaptation and mitigation practices. I serve as Research Leader of the Soil, Water and Air Resources Research Unit at the National Laboratory for Agriculture and the Environment.