John R. Greenwalt

J.R. Greenwalt is an associate in the Environmental Law practice. J.R. focuses his practice on environmental litigation on behalf of public-sector clients concerning contamination, natural resources impacts, and legal violations relating to emerging contaminants. Currently, J.R. serves on multiple teams that represent states in cases related to per- and polyfluoroalkyl substances (PFAS), both in standalone lawsuits and in multidistrict litigation.

In addition to his environmental work, J.R. represents clients in commercial disputes with a focus on consumer data privacy.

While attending Tulane Law School, J.R. worked for the Tulane Environmental Law Clinic, representing communities in Cancer Alley, Louisiana, the heavily polluted region along the Mississippi River between Baton Rouge and New Orleans. Additionally, J.R. served as a Managing Editor for the Tulane Law Review where he wrote a comment analyzing the United States Supreme Court’s decision in Sackett v. Environmental Protection Agency that was selected for publication. J.R. graduated from Tulane Law summa cum laude, received the Haber Joseph McCarthy Environmental Law Award for achieving the highest grade point average in environmental law coursework among graduating students, and was inducted into the Pro Bono Krewe for dedicating more than 150 hours of service to pro bono clients.