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The Strategic Sciences Group (SSG) is co-led by the Science Advisor to the National Park Service Director and the U.S. Geological Survey Associate Director for Natural Hazards. In addition, a small staff is assigned responsibility to build, direct, and manage activities. Currently, SSG staff includes a Staff Scientist and an American Association for the Advancement of Science (AAAS) Science and Technology Policy Fellow.


Dr. Gary Machlis

Co-Leader, DOI Strategic Sciences Group
Science Advisor to the Director, National Park Service

Dr. David Applegate
Co-Leader, DOI Strategic Sciences Group

Associate Director for Natural Hazards, U.S. Geological Survey


Dr. Kris Ludwig

Staff Scientist, Natural Hazards, U.S. Geological Survey


Dr. Teresa Stoepler

AAAS Science & Technology Policy Fellow, Natural Hazards, U.S. Geological Survey

Please send inquiries to:

ssg@ios.doi.gov