David Yellen is a nonresident fellow at the Atlantic Council Global Energy Center (GEC) and a strategic advisor at Clean Air Task Force (CATF), where he helps to coordinate CATF’s COP 27 strategy and programming and conducts research on international climate policy. Previously, David was an associate director at the GEC where he was responsible for Asia-Pacific research and programming as well as the Center’s hydrogen work. His interests currently include China’s industrial strategies and policies in energy industries, hydrogen markets and deployment policies, and energy transition policies in developing countries. David also previously worked at the Council on Foreign Relations on clean energy economics and in Senator Elizabeth Warren’s office, and he has contributed pieces to Scientific American and the Economist, among other publications. He graduated summa cum laude with a bachelor’s degree in government from Georgetown University, with a focus on energy markets and policy and a minor in economics. David was also a national Rhodes scholarship finalist.