Dr. Roper is a visiting professor at Johns Hopkins University where he teaches courses in remote sensing and geospatial technology applications, geospatial information systems, sustainable development, environmental protection, and smart growth strategies. He serves as an adjunct professor in the Environmental Science and Policy Department and the Business School of George Mason University He is also the President and Founder of Enviro-Tec Global, LLC a Virginia based Environmental and Engineering consulting firm. His technical expertise and executive management experience include extensive water management and energy efficiency applications at the Army and other DOD facilities and utilities nationwide. He has also led major international sustainable energy efficiency application efforts in the water distribution and wastewater treatment areas including a major project for the state of San Paulo in Brazil and waste to energy systems in Ghana. He has over 35 years of experience in federal government, industry, local government and academia in the design, development and implementation of effective environmental management and policies, efficient water treatment technologies, sustainable energy systems, geospatial technology applications and other related technologies for improving infrastructure operations and protecting the environment. He is a founding Director and President of the Rivers of the World Foundation, a 501(3)c nonprofit organization dedicated to improving and sustaining our lake and river water quality globally.

He has served as Arlington County’s Public Works & Environmental Services Department Director and the County’s first Chief Environmental Officer. Prior to joining George Mason, he was Professor and Chair of the Civil and Environmental Engineering Department at George Washington University. He is a former Federal Senior Executive Service career executive having served as the Director and CEO of the Army Geospatial Center at Fort Belvoir, Virginia. Dr. Roper has also served as the Director of the Army Corps of Engineer’s World-Wide Civil Works Research and Development Program which involved research program management, development and execution at seven major laboratories and five research centers located throughout the United States involving over 2200 scientists and engineers. He is the author of over 180 technical papers, five books and has presented at numerous national and international forums.