Epstein is an associate professor of environmental law at Uppsala University in Sweden and Pro Futura Scientia fellow at the Swedish Collegium for Advanced Study. Her research has focused on interdisciplinary methods in law and ecology, especially as applied to EU environmental law and to rights of nature. Her publications include “Science and the legal rights of nature” (with Aaron M. Ellison, Hugo Echeverría, and Jessica K. Abbott, Science, 2023), “Animals and nature as rights holders in the European Union” (with Eva Bernet Kempers, Modern Law Review, 2023), and “A rights revolution for nature” (with Guillaume Chapron and José Vicente López-Bao, Science, 2019). She is co-convenor of the Research Group on Rights of Nature and Animals under the auspices of the International Association of Constitutional Law. She is also currently co-directing a research environment in “legal ecology”, a collaboration between Uppsala University and the Swedish University of Agricultural Sciences.