In her long honorable career, Dr. Marion has played a key role in establishment of a global participatory assessment process, capacity building of collaborating institutions, and coordination of UNEP’s contributions to the World Resources Report. She has also contributed immensely to the planning and establishment of the Global Terrestrial Observing System (GTOS), by developing assessment frameworks, methodologies and tools in collaboration with partner organizations. And her lectures focused on the integrated environment assessment (IEA), using cases mainly from her own work experience, like Globe Environment Outlook published by UNEP and DPSIR (Driver, Pressure, State, Impact, Responds) analytical framework. At the end of the lectures, the students were divided into groups to do a DPSIR model to analyze an environmental issue by group interest and made a poster to present to the class.