Allison Leach

Allison Leach
Research Associate

Allison Leach is a postdoctoral researcher with the UNH Sustainability Institute. She is a developer of the nitrogen footprint approach, and she led the integration of the nitrogen footprint into SIMAP. She currently works on SIMAP research & development. Prior to arriving at UNH, Allison was a researcher and graduate student at the University of Virginia where she developed the first-ever university level nitrogen footprint model. She holds a B.S. and M.S. in Environmental Sciences from the University of Virginia and a Ph.D. in Natural Resources and Environmental Studies from the University of New Hampshire. Her dissertation was titled "The Nitrogen Challenge: Footprints Tools and On-Farm Solutions." If you have any nitrogen footprint or SIMAP questions, you can contact her at

B.S., Environmental Science, University of Virginia

M.S., Environmental Science, University of Virginia

Ph.D., Natural Resources and Environmental Studies, University of New Hampshire