Interests
consulting | applied research | teaching
sustainable urbanism: climate-responsive urban landscapes, convivial greenstreets, DIY and tactical urbanism, waterfronts and riparian urbanism
ecological design and restoration: meadows, prairie gardens, ecotones, pocket forests, novel and regenerative ecosystems in the city
design learning: pedagogy, curriculum design, education abroad
collaboration: between science and informed creativity
Professional Experience
Penn State University—
Emeritus—
Summer 2026: Lead Professor, Barcelona Summer Studio
Oct. 2025–current: Academy Professor, Penn State Emeritus Academy
July 2024–current: Distinguished Professor Emeritus–Active
Full-time—
2017–2024: Distinguished Professor of Landscape Architecture
2019–2023: Director, Education Abroad Program
2006–2017: Full Professor of Landscape Architecture
1998–2020: Faculty, Inter-College Graduate Program in Ecology
2000: Interim Head, Department of Landscape Architecture
1999–2006: Associate Professor of Landscape Architecture
1997–1999: Director, Graduate Program in Landscape Architecture
1993–1999: Assistant Professor of Landscape Architecture
Ontario, Canada—
1988–1993: Associate / Senior Landscape Architect, Hough Stansbury Woodland, Toronto
1985–1988: Senior Landscape Architect / Planner, Totten Sims Hubicki, Ontario
Professional Degrees
Queen’s University, Canada
Master of Urban and Regional Planning, 1986
CMHC Graduate Fellow, Queen’s Graduate Scholar
University of Guelph, Canada
Bachelor of Landscape Architecture (5-year), 1983
ASLA Award of Honor, CSLA Award of Merit
Current Activities
faculty lead, Penn State's Ed Abroad program in Barcelona, Spain, summer 2026
curriculum advisor to Barcelona Architecture Center on planned landscape architecture semester program
convivial greenstreets research; have recently studied cities in Norway, Austria, Switzerland, Portugal and Spain
biodiversity- and climate-responsive professional planting practices in the U.S. northeast
journal peer review: Urban Planning, Climate Action, Land, Architecture, Sustainability, others
guest critic in LArch studios at Penn State
implementation of, and observations in, native pollinator meadows
Prior Professional Affiliations
Registered Landscape Architect, Province of Ontario, with stamp
Registered Professional Planner, Ontario Professional Planners Institute, with seal
Full Member, Ontario Association of Landscape Architects
Full Member, Canadian Institute of Planners
International Full Member, Canadian Institute of Planners
Society for Ecological Restoration
Constructed Environment Research Network
International Association of Community Development
Fellowships, Appointments, Commissions
Academy Professor, inducted by the Penn State Emeritus Academy, Oct. 2025–current
Distinguished Professor Emeritus status granted by PSU president, July 2024–current
Commissioner, University Park Tree Commission, PSU, 2012–2024
Distinguished Honors Faculty, Schreyer Honors College, Penn State University, 2021–2023
University Faculty Scholar Medalist Review Panel, 2022–2023
Arts & Architecture Distinguished Professor Nominating Committee, 2022
Evan Pugh University Professorship Committee, 2019–2022
Lead author, departmental Diversity, Equity and Inclusion draft statement, 2020
Commissioner, State College Borough Tree Commission, 2005–2016
Astorino Fellow - sabbatical, L. Astorino Endowment, Penn State University, 2014–2015
Executive Committee member, Collaborative Design Research, Stuckeman School, Penn State University, 2014–2015
Engaged Scholarship Pioneer, Penn State Engagement Scholarship Council, 2013–2014.
Faculty Council member, College of Arts & Architecture; lead author on Preamble and Article 1 (Legislative, Advisory & Consultative, and Forensic Roles) of the Constitution of the College Faculty, 2011–2013
Fine Outreach for Science Returning Fellow, Robotics Institute, Carnegie Mellon University, 2010–2013
Public Scholarship Fellow, Provost appointment, Penn State University, 2011–2012
Fine Outreach for Science Fellow, Global Connections Project, Robotics Institute, Carnegie Mellon University, 2009–2010
Visiting Scholar Readership (brief sabbatical), Ross Library at the American Academy in Rome, Spring 2008
Executive Board member, Center for Watershed Stewardship, Penn State University, 2003–2007
Program Committee member, Inter-College Graduate Ecology Program, Penn State University, 1999–2006
Heinz Faculty Fellow, Center for Watershed Stewardship, Penn State University, 1999–2000; 2002
Research Fellow: Nine Mile Run, Studio for Creative Inquiry, Carnegie Mellon University, 1997–1999
Commissioner, City of Burlington Sustainable Development Commission, 1988–1991
CMHC Graduate Fellow, Queen's University, 1984–1986
Allied Organizations
STUDIO for Creative Inquiry, Carnegie Mellon University
Penn State's Center for Watershed Stewardship
Penn State's Inter-college Graduate Program in Ecology
Design of Learning, Collaboration and Experience Lab (dolcelab), PSU, NYU, UB
Community Robotics, Education and Technology Empowerment Lab (CREATE Lab), Robotics Institute, Carnegie Mellon University
Franco Harris Pittsburgh Center at Penn State
State College Borough and Penn State Tree Commissions
The Arboretum at Penn State
ClearWater Conservancy
Penn State's Alliance for Education, Science, Engineering, and Design with Africa (AESEDA)
Akademie für internationale Bildung (AiB), Bonn, Germany
Uttarakhand Seva Nidhi Paryavaran Shiksha Sansthan, Almora, India
Barcelona Architecture Center ( BAC), Barcelona, Spain
Sede di Roma, Rome, Italy
colleagues at Queen's University (CA), York University (CA), University of Rio de Janeiro, Wageningen University, University of Ghana, University of Dar es Salaam, University of Hawaiʻi at Mānoa, Carnegie Mellon University, Universities of Oregon and Florida, among others.
On a personal note—
My surname is of Frisian-Dutch descent, with the accent on the first syllable: Tamm'–ing–a.
My parents emigrated after WWII from the Netherlands to Canada.
My wife is a retired gifted and enrichment teacher. We have three grown children: a linguist, an earth scientist-ecologist, and a psychiatrist. We have one amazingly wonderful granddaughter, Nathalie 🩷.