Professor Freeman is Professor of Law and the founding Director of the Harvard Law School Environmental Law Program. Her work in environmental law focuses on the design of governance institutions, regulatory tools and decision making procedures; most recently, she is working on climate related institutional design. Professor Freeman authored an amicus brief, on behalf of Madeleine Albright, in MA v. EPA, the global warming case decided by the Supreme Court in 2007. Her analysis of the implications of the case, MA v. EPA: From Politics to Expertise, appears in the most recent issue of the Supreme Court Review. In another recent article, Timing and Form of Federal Regulation: The Case of Climate Change, Professor Freeman explains how state efforts to address climate change are likely to help shape federal regulation (in Penn L. Rev. with DeShazo). Her 2006 book, Moving to Markets in Environmental Regulation (with Kolstad), is a collection of essays by leading legal scholars and economists analyzing how well market mechanisms of environmental regulation have performed compared to command and control regulation.