Brian O’Neill is the Leader of the Population and Climate Change (PCC) Program and a co-Leader of the Greenhouse Gas Initiative at the International Institute for Applied Systems Analysis (IIASA) in Austria. He is also an Assistant Professor (Research) at Brown University’s Watson Institute for International Studies.

Leiwen Jiang is an assistant professor (research) of Watson Institute for International Studies at Brown University. Before joining Brown University, he was an associate professor of Institute of Population Research at Peking University.