Dr. Duffy is a physicist who has devoted his career to the use of science in addressing climate change. Prior to joining WHRC, Dr. Duffy served in the White House National Science and Technology Council as the Senior Advisor to the US Global Change Research Program, and as a Senior Policy Analyst in the White House Office of Science and Technology Policy. In these roles he was involved in international climate negotiations, domestic and international climate policy, and coordination of US global change research. Before joining the White House, Dr. Duffy was Chief Scientist for Climate Central, an organization dedicated to increasing public understanding and awareness of climate change. Dr. Duffy has held senior research positions with the Lawrence Livermore National Laboratory, and visiting positions at the Carnegie Institution for Science and the Woods Institute for the Environment at Stanford University. He has a bachelor’s degree from Harvard and a Ph.D. in applied physics from Stanford.