Sergio Rejado Albaina is an environmental biologist and consultant with the United Nations Development Programme (UNDP) in Belize, where he supports the Belizean government in strengthening protected area policy. Originally from Spain, Sergio has worked and lived in 11 countries across three continents, collaborating with NGOs, international organizations, and private sector startups. His work focuses on environmental protection, international cooperation, and sustainable development. Sergio is passionate about the outdoors and spends his free time playing guitar, reading, exploring forests, or diving. A lifelong learner, he is fluent in English, Spanish, French, Portuguese, German, and Russian. He holds an M.Sc. in environmental sciences, policy, and management from the University of Manchester, UK; Lund University, Sweden; and Central European University, Hungary. He also earned a B.Sc. and M.Sc. in environmental, marine, and agricultural biology from the University of Navarra, Spain, including a year of study at the University of Tromsø, Norway.