Carl is an assistant scientist at the University of Wisconsin-Madison and the program manager for Grassland 2.0. His research has been primarily focused on soil and microbial ecology, soil biodiversity and the ecosystem services provided by the life in soil and researching how human activities effect soils and their associated functioning, both positively and negatively. Particularly, his research has focused on the unintended consequences of livestock antibiotics and affect these antibiotics can have on soil microbes and the functions they regulate. Carl received his BS in Environmental Science from St. Norbert College, his MS in Environmental Science from Washington State University and his PhD in Biology from Virginia Tech where he was also a fellow within the Interfaces of Global Change Interdisciplinary Graduate Education Program.