Sibyl Schaefer established and leads the National Digital Stewardship Alliance (NDSA) Climate Watch Working Group which tracks climate science and related media reports to assess impacts on digital preservation activities. She has published and presented extensively on digital preservation practice and infrastructure as well as digital archives workflow, description and management, and open-source software. She serves as the Chronopolis Program Manager and Digital Preservation Librarian at the University of California, San Diego. She previously served as the Head of Digital Programs for the Rockefeller Archive Center where she worked to fully integrate digital and traditional archival practices, including policy development, forensic and accessioning workflows, and training initiatives to support the long-term stewardship of digitized and born digital materials. She has been recognized as an Emerging Leader by the American Library Association and the Archival Leadership Institute. Schaefer holds an MLIS with a specialization in Archival Studies from UCLA.