Philip B. Duffy Ph.D.

  • President
  • Executive Director
Philip Duffy

Dr. Philip Duffy is driven by a vision of science that makes a positive difference in the world. He is a physicist who has devoted nearly 30 years to the societal challenge of climate change. He has helped shape US global change research and been involved in international climate negotiations. Dr. Duffy often engages policy—and decision-makers, from local officials to federal legislators and delegates at the United Nations climate conferences. He is particularly interested in working across traditional boundaries to address climate change, building partnerships with faith leaders, business leaders, and thought leaders across the political spectrum.

Dr. Phil Duffy in conversation with colleagues
Dr. Philip Duffy testified about climate change to the U.S. House of Representatives Committee in 2018

Left: In conversation with colleagues.

Right: Testifying as part of the Congressional Climate Issues Panel Discussion on June 20, 2017.

Dr. Duffy serves on committees of the National Academy of Sciences, and is frequently quoted in major national media outlets such as the New York Times, the Washington Post, Science, the Boston Globe, NPR, CNN, and MSNBC.

Prior to joining Woodwell Climate Research Center, Dr. Duffy served as a Senior Policy Analyst in the White House Office of Science and Technology Policy and as a Senior Advisor on the White House National Science and Technology Council. Before joining the White House, Dr. Duffy was Chief Scientist at Climate Central, an organization dedicated to increasing public understanding and awareness of climate change.

I value scholarly excellence. What I want to do is apply that in a way that has policy relevance and societal benefit.


RCP8.5 tracks cumulative CO2 emissions

Christopher R. Schwalm, Spencer Glendon, Philip B. Duffy (2020)


Ignoring climate change risks market chaos

Theodore Roosevelt V and Philip B. Duffy (2020)