Gabriel Mantelli is a Brazilian lawyer with a bachelor's degree in Law from the University of São Paulo (2015) and a master's degree in Law and Development from the Getulio Vargas Foundation (2019) with a research exchange at Kent University. He is currently studying for a PhD in Philosophy and General Theory of Law at the University of São Paulo, and has been awarded a scholarship to be a visiting researcher at the Geneva Graduate Institute (2024)
During his undergraduate studies, he was one of the founders of the Paulo Nogueira Neto Environmental Law Clinic. After graduating, he took on important roles such as researcher at the Center for Global Law and Development at the Getulio Vargas Foundation (2017-2019), professor of environmental law and international law at the São Judas Tadeu University (2019-2022) and consultant for the Climate Litigation Accelerator (CLX) at New York University (2021-2022). He also served as a visiting professor at Lanzhou University for the summer course on climate litigation in 2023. He is the main author of the "Climate Litigation Guide" and, in 2021, co-organized the book "Human Rights in Multiple Views" published by OAB/SP.