Nate Hultman ocupă funcția de senior adviser în cadrul Office of the U.S. Special Presidential Envoy for Climate, condus de John Kerry, din cadrul Departamentului de Stat American. A fost și directorul Centrului pentru Sustenabilitate Globală și conferențiar universitar la Școala de Politici Publice a Universității din Maryland.
During 2014-2016, Hultman worked at the White House in the Obama administration's climate and energy policy team. He has contributed to the development of the US climate target for 2025, worked on US bilateral commitments with China, India, Brazil and participated in international climate negotiations in Lima and Paris.
His research focuses on setting and assessing national climate goals, US policy to mitigate emissions, including the role of non-federal actors, energy technology transitions, and international climate policy. He was recently the lead coordinator of the US Report, "America's Pledge 2019, Accelerating America's Pledge: Going All In to Build a Prosperous, Low Carbon Economy."
He has been involved in the UN climate process for over 20 years and was part of the team that produced the fifth IPCC (Intergovernmental Panel on Climate Change) assessment report and the special report on renewable energy.
Hultman is also a non-resident researcher at the Brookings Institution and associate director of the Joint Global Change Research Institute, an institute developed in collaboration between the University of Maryland and the Pacific Northwest National Laboratory. Hultman was previously a researcher at Oxford University and received a Fulbright Fellowship.
He holds a doctorate and a master's degree in energy and resources from the University of California, Berkeley and a bachelor's degree in physics from Carleton College.
In 2019, Professor Hultman was awarded the “World Citizen Prize in Environmental Performance”, awarded for the first time by the Association for Public Policy Analysis and Management (APPAM), for the analysis and research activity in the field of climate change.