Dr. Marrin's professional history includes public and private sector positions.
Consulting/Research
Consultant and advisor to corporations, government agencies, activist groups, and nonprofit organizations as both an independent contractor and a member of technical or creative teams.
Co-founder of Institutio Scientiae Inc., which presented scientific concepts to nontechnical audiences (e.g., stakeholders, arbitrators, jurors, managers) using videography, animation, and various types of multimedia presentations.
Founder of InterPhase Environmental Inc., which specialized in techniques for detecting volatile contaminants (VOCs), assessing natural biodegradation pathways, and measuring biogenic (greenhouse) gas production.
A senior R&D scientist (Tracer Research), a consulting hydrochemist (Woodward-Clyde), and a marine ecologist on two major research projects (Ocean Thermal Energy Conversion, Outer Continental Shelf Assessment).
Teaching
Founder of Water Sciences & Insights, which serves as a web-based, interactive, and live multimedia forum for presenting diverse theories, insights, and perspectives on water and water-related issues.
Adjunct Professor in the Geological Sciences Department at San Diego State University, which involved teaching graduate courses (e.g., hydrology, biogeochemistry) and serving on student thesis committees.
Instructor in the Extension Program for the University of California at San Diego and the Online Program for the University of Phoenix, which involved designing and/or teaching environmental science courses.
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