9/82 - Present: Physics and Meteorology Professor Clark College Physics, 1800 E. McLoughlin Blvd., Vancouver, Washington, 98663 (a publicly supported community college). A tenured member of the Clark College faculty. Shares responsibility of the administrative tasks of running a physics department: budgeting, hiring, scheduling, etc. An active member of the campus community. While teaching, Dr. MacKay has written or co-written, assessed, and revised all Physics laboratories used by the Clark College Physics and Meteorology Department for Conceptual Physics, Technical Physics, Trig-Based Physics, Calculus-Based Physics, and his introductory Meteorology course. Dr. MacKay has also developed many interactive computer aided lessons for students in Physics and Meteorology utilizing either spreadsheets, simple BASIC or FORTRAN programs, Java Script, JAVA, or Stella II modeling package. He has been active in the physics education community and has structured his course and student centered learning activities to optimize their effectiveness based on current understandings from physics education research. 3/03 – 6/03: Visiting Fellow with the Science Education Research Center (SERC) at Carleton College, Northfield, MN. Developed Web based material for introductory geoscience education.  Focus on teacher resources for using interactive modeling activities in geoscience education.  Work on this project has continued  on a limited consulting basis from 6/03 through 8/05. 4/99 – 4-02:Co-Investigator on NASA Sun-Earth climate connections projectInvestigating the Climatic Effects of Solar Irradiance Variations”. Contract NASW-98037 awarded to Malcolm Ko of the Atmospheric Chemistry and Dynamics Division, of Atmospheric and Environmental Research(AER), Inc., 840 Memorial Drive, Cambridge, MA 02139.   Research focus on climate change detection and attribution. 1/95 - 9/96: Senior Research Associate, Atmospheric Chemistry and Dynamics, AER, Inc., 840 Memorial Drive, Cambridge, MA 02139. Responsible for maintaining and enhancing the existing AER Two-Dimensional Interactive Climate Chemistry Model and help lead AER research efforts directed at understanding the interactions between climate and atmospheric chemistry. Also responsible for developing new programs and research directions at AER. Manager of NASA/Mission To Planet Earth/Tropospheric Emission Spectrometer (TESS) educational outreach project. 3/80 - 9/81:Geophysical Field Engineer Schlumberger Well Services, Cody, Wyoming. Management position in charge of a well logging crew that typically grossed $200,000 to $300,000 monthly.  Required technical expertise in data acquisition, data reduction and analysis, equipment repair and troubleshooting, public relations, and sales.