Peter Weiner is an environmental attorney with a San Francisco law firm. He has practiced environmental law for 25 years. He previously helped direct the Cal/OSHA program and served as Special Assistant to Governor Brown for Toxic Substances Control. He is also a member of the Board of Trustees of the California State Parks Foundation, and serves on the Board of the Coalition for Clean Air. He received his B.A. from Harvard College and his J.D. from Yale Law School.