In addition to clients focused on watercourses, fisheries and hydro-electric facilities located in the United States, WPLG also works for clients involved in international water and power matters. For instance, in early 2016 WPLG's Paul Stanton Kibel was retained by the International Association of Water Lawyers (AIDA) to co-author a new guidebook for the United Nations Environment Programme (UNEP) on The Greening of Water Law.