Theodore’s principal scholarly interest concerns the historical, scientific, cultural, and design bases of urban greening, defined here as the introduction or conservation of outdoor vegetation in cities. He believes that design is a powerful tool for enhancing human and ecological potentials, and this informs his approach to landscape architecture and urban planning. Prior to starting at UMass, Eisenman was an Andrew W. Mellon Fellow in the Humanities Institute at The New York Botanical Garden. His career spans research and practice with a range of federal, municipal, and nonprofit organizations including the Environmental Protection Agency, National Park Service, Scenic Hudson, Trust for Public Land, U.S. Forest Service, and Washington, D.C. Department of Parks and Recreation. He has been a regular contributor to Landscape Architecture Magazine on ecological design topics, and is currently a Review Editor at Frontiers in Ecology and Evolution journal. Raised in Sweden and the U.S., and having worked as a Peace Corps Volunteer in Senegal, he is also interested in international affairs.