David Titley

Titley initiated the Navy's Task Force on Climate Change, and serves on the CNA Corporation's Military Advisory Board. He was formerly agnostic about climate change, but later changed his mind after looking at the evidence of what factors influence climate–which are, according to Titley, "what are the larger things doing – what is the ocean doing? What is the sun doing? And what's our atmosphere doing?" Since then, he has described climate change as "one of the driving forces in the 21st century" and said that it contributed to the 2011 Arab Spring.

The Department of Defense requested that Titley present on their behalf at both Congressional Hearings and the Intergovernmental Panel on Climate Change (IPCC) meetings from 2009 to 2011.

Titley graduated from Pennsylvania State University with a B.S. degree in meteorology. He later attended the Naval Postgraduate School, earning an M.S. degree in meteorology and physical oceanography in 1989 and a Ph.D. degree in meteorology in 1998.

David William Titley (born 1958) is a professor of meteorology at Pennsylvania State University and the founding director of their Center for Solutions to Weather and Climate Risk. He was also NOAA's chief operating officer from 2012 to 2013. Before assuming these positions, he was a rear admiral in, and the chief oceanographer of, the U.S. Navy, in which he served for 32 years. He is a fellow of the American Meteorological Society.