Sergio GUILLEN GRILLO, is a part time faculty member in Political Science and Engineering at the Texas Tech University-Costa Rica Campus, and researcher in its Center for the Global Understanding of Experiential and Sustainable Tourism (GUEST). He is a Ph.D. Candidate at the Crawford School of Public Policy of the Australian National University and was an Australian Leadership Awards Scholar between 2013 and 2017. His doctoral research studies the engagement of Central American social movements, such as environmental, indigenous and campesino organizations, with the formal and informal sites of public participation and contention in the deliberative system. He was Director of the Local Reference Windows for Migrant Support project at the Foundation for Peace and Democracy (FUNPADEM) in Costa Rica. He previously was Senior Specialist in Social Dialogue at FUNPADEM. He has worked for 20 years as a certified mediator and dialogue facilitator in public interest conflict resolution in Latin America. Prior to this, he worked internationally on issues of energy poverty and small-scale clean energy development. He holds a degree in Mechanical Engineering, from Carleton University, a Master of Arts in Environmental Security and Peace from the University for Peace, and a Graduate Certificate in Natural Resources and Organization Management from the University of Michigan. He has taught courses on conflict resolution, leadership, sustainability, governance and engineering ethics at universities in Costa Rica, Honduras, Mexico and Australia.