Dan is a Senior Geologist with EA Engineering, Science, and Technology, Inc. (PBC) and also conducts research through the University of Maryland’s Department of Civil and Environmental Engineering. Dr. Walker has been involved with strategic planning and management of state and federal science for over 30 years. During an 11 year tenure, Dan directed 19 National Academy studies over a range of topics from coastal and ocean science, eventually being named a National Academies’ Scholar in 2006. Dr. Walker then served the White House Office of Science and Technology Policy (OSTP) from 2006 to 2009, completing his tenure at OSTP as Assistant Director for Environment. Dr. Walker has served as a Principal and Co-Chair on various U.S. federal interagency committees and bodies, as well as a U.S. Delegate to the International Panel on Climate Change (IPCC) from 2007 to 2010. Dan then served as Chief of the Climate Assessment and Services Division of NOAA’s Climate Program Office from 2009-2010. A chapter author (Coastal Effects) of the Fifth National Climate assessment, Dr. Walker is a frequent speaker at climate and ocean policy meetings and is an active member of ASCE. In addition to being a founding member and immediate past Chair of ASCE’s Committee on Adaptation to a Changing Climate (CACC), Dan also serves as Co-Chair of the ASCE NOAA Task Force on Climate Resilience in Engineering Practice and is a member of the NOAA's National Centers for Environmental Information (NCEI) Architecture & Engineering Sector Advisory Group.

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