“Master Planning for Net-Zero Energy and Other Intertwined Sustainable Systems.” (Speaker, National AIA Conference, Denver, CO, 2013).

“The Cultures of Sustainable Urbanism” (Speaker, Portland Urban Architectural Research Laboratory, University of Oregon, Portland, OR, 2013).

“Sustainable Urbanism: Paradigms and Paradox.” (Speaker, University of Denver School of Law,  Denver, CO, 2012).

Guest Speaker, EPA, Denver, Colorado, 2012.

“Sustainable Communities: Paradigms and Paradox.” (Keynote Speaker, AIA Vermont Annual Conference, VT, 2011). 

“Master Planning for Net-Zero Energy and Other Intertwined Sustainable Systems.” (Speaker, National ASLA Conference, San Diego, CA, 2011).

Guest Speaker, Colorado Governor’s Energy Office, Denver, CO, 2011.

“Climate Responsive Urbanism: Historic Precedents and Progressive Practice.” (Speaker, Portland Urban Architectural Research Laboratory, University of Oregon, Portland, OR, 2011). 

“What Can Traditional Urban Neighborhoods Learn from Cohousing?” (Speaker, National Cohousing Conference, Boulder, CO, 2010).

“Sustainable Urban Neighborhoods.” (Speaker, National Cohousing Conference, Boulder, CO , 2010). 

“Sustainable, Net-Zero Energy Urbanism: Issues and Examples.” (Speaker, Rocky Mountain Land Use Institute Annual Conference, University of Denver Sturm College of Law, Denver, CO, 2010). 

“The Planning of Geos: America’s Largest Net-Zero Energy Neighborhood.” (Speaker, USGBC Colorado Green Building Conference, Denver, CO, 2010). 

“Solar Homes and Living.” 2009 Interview, Green Building Series Colorado, CO, 2010). 

“A Case Study in Patterns for Sustainable Urbanism.” (Speaker, Portland Urban Architecture Research Lab Annual Symposium, University of Oregon, Portland, OR, 2009). 

“The Geos Net-Zero Energy Neighborhood.” (Speaker, Next Generation of New Urbanists, CNU 17 National Conference, Denver, CO, 2009).

 “The Geos Net-Zero Energy Neighborhood.” (Speaker, Urban Land Institute & DRCOG, Implementing Sustainability Workshop, Denver, CO, 2009). 

“The Geos Net-Zero Energy Neighborhood.” (Speaker, Designing the New West Conference, Bozeman, MT, 2009).

“The Geos Net-Zero Energy Neighborhood.” (Speaker, Designing the New West Conference, Boise, ID, 2009). 

“The Geos Net-Zero Energy Neighborhood.” (Speaker, AIAS National Conference, Denver, CO, 2008).

“The Design of Geos: Integrating Net-Zero Energy and Civic Stormwater with Mixed-Use Urbanism.” (Speaker, APA/ASLA Colorado 2008 Joint State Conference, Denver, CO, 2008). 

“Case Studies in Sustainable Urbanism.” (Speaker, Ethiopia Federal Ministry of Planning, Addis Ababa, Ethiopia, 2008, sponsored by US State Department).