Each semester an adjunct faculty consisting of educators from colleges and universities, professionals in the architecture, design, and construction industries and experts from nationally recognized organizations join Ecosa as visiting faculty and lecturers.

People at Ecosa

Each semester an adjunct faculty consisting of educators from colleges and universities, professionals in the architecture, design, and construction industries and experts from nationally recognized organizations join Ecosa as visiting faculty and lecturers. These individuals, regarded as experts in their field, teach specific segments of the curriculum. While the actual makeup of the faculty and visiting lecturers changes from semester to semester, most of our faculty and speakers listed return to the Ecosa Institute for many seasons.

Guest Speakers

Ecosa Alumni

Friends of Ecosa

Board of Directors

Ecosa Faculty Biographies

ROGER ASAY, along with his wife, Rebecca Davis, has exhibited sculptures throughout the US. The couple currently lives in Prescott, AZ. They have been collaborating since 1983 to produce sculpture which presents the raw materials of nature as the subject as well as the substance of their installation art. The resulting body of work has been shown in museums throughout the Southwest. Asay and Davis have created permanent site-specific outdoor sculptures for the cities of Prescott, Tucson, Cottonwood, and Phoenix in Arizona, as well as many temporary on-site installations. Their work is part of a number of public and private collections. Asay's current work, consisting primarily of jumbles of sticks formed into polished spheres, is carried by Cervini Haas Gallery, Scottsdale, and Van Gogh's Ear, Prescott. Through most of his career, Asay has been a part-time educator at universities and colleges. In the last decade has also created animal sculptures of stuccoed concrete in collaboration with Arizona school children.

ANTONY BROWN (Director and Founder) has over 40 years experience working on sustainable architecture and urban design. He has taught sustainable design and planning at the college level and has lectured at universities around the United States and abroad. As Director of the Ecosa Institute he continues to develop an innovative new approach to educating students and graduates in the role of sustainability in design. He has attracted a number of leading architects, designers, scientists and writers to the Ecosa Institute to meet with students, review their work and discuss their approach to sustainable issues. Students now come to the Ecosa Institute from around the world to supplement their design education.

Mr. Brown has worked as an architect in London, Boston and San Francisco, has been a magazine editor and written numerous articles for magazines for which he has won press club awards. He has received awards for his book illustrations including illustrations in “Nature Notes” and “The Ecology of the Grand Canyon.” He founded an award-winning graphic design company and has an architectural practice where he has promoted concepts of sustainability throughout his career.

MEGAN DIXON has a Bachelors of Science in Biology from Northeastern University (2006). In 2007 Megan was licensed as a Massachusetts Real Estate Agent and worked for two years at Paragon Properties in Boston, Massachusetts. She completed the Certificate of Regenerative Ecological Design at Ecosa Institute in 2009. Megan joined the Ecosa team in 2009, first to serve as the Program Coordinator and now as Managing Director of the Institute. In addition to her administrative role, Megan assists with program facilitation and teaches Watershed Restoration and Listening to Place for Ecosa.


ANTHONY FLOYD has worked for the City of Scottsdale since 1985 as a building codes specialist and later as a city Building Official. He left the city in 1995 to participate in a one-year international study program which focused on the issues of sustainability, development, and global ecology. Since his return in 1996 he has worked to promote environmentally sound building practices. Anthony currently serves as Scottsdale’s Sustainable Building Manager and is in charge of the newly established Green Building Program which promulgates environmentally responsible and energy efficient building practices for city facilities, home construction and commercial development.

Anthony is past chairman of the MAG (Maricopa Association of Governments) Building Codes Committee and past President of the Arizona Chapter of the International Conference of Building Officials. He currently serves on the Board of Governors of the World Organization of Building Officials, The Ecosa Institute, and as a member of the Arizona Solar Energy Advisory Council. Anthony is an Arizona registered architect and a certified building official. He has a civil engineering and architecture degree from Penn State University (1978) and a Master's Degree in public administration (1994) from Arizona State University.

JEFFERY FROST a.k.a. Green Co-founder Jeffery Frost assisted in the design, development and construction of some of the Valley's truest private environmental buildings. Frost has developed specialized knowledge and hands-on expertise in the construction of a broad portfolio of alternative building systems, including insulated concrete forms, autoclaved aerated concrete, structural foam technology, and straw bale. With clients who are willing to push the envelope, he has incorporated many alternative finish materials into projects, learning the nuances of each new material and its best applications. With a Designer's eye, he is always searching for and evaluating new and innovative materials based on aesthetics and practicality. He has been featured on local television and newspaper, discussing green building materials.

Frost began his career in Detroit, Michigan as a Project Manager and Designer. Before graduating with a Bachelors of Science Degree in Architecture from Lawrence Technological University, Jeff had already designed and built over 30 projects with Stucky-Vitale Architects. Attracted by the architectural possibilities suggested by an arid, desert climate, he moved to Phoenix and joined Salazar Associates as a Project Manager and Designer. Frost worked for Sol Source from 2001-2006 and is an AIA Associate Member and LEED Accredited Professional.
He is currently at SmithGroup (architecture, engineering, interiors, planning) as the Phoenix office LEED project majager and internal sustainability consultant.


CHARLIE GOHMAN has over twenty years experience with residential energy conservation. He has been with the Arizona Energy Office for sixteen years and is presently Manager of the Building Science and Efficiency section. He provides technical assistance and training on residential energy auditing, diagnostics, codes and energy financing to Weatherization Assistance Program participants, municipalities, utilities and the building industry. He has an extensive background in residential building analysis utilizing pressure diagnostics, infrared cameras and computer auditing.

TOM HAHN Tom is a registered architect and licensed contractor, and is the Associate Director of the Ecosa Institute, as well as the Managing Principal of Ecosa Design Studio: Architecture+Planning, both of Prescott, Arizona. His design work of the last 20 years has focused on a "research-oriented" eco+logical architecture, exploring the "edge of green" - the innovative edge seeking synergy between environmentally- and experientially-sensitive architecture. Previously, Tom founded Sol Source Architecture, of Phoenix, AZ, and led it for 13 years developing those ideals in one of Arizona's first exclusively ecological-architectural practices. He was also one of the founders of Three Rivers EcoBuilders of Phoenix, Arizona, builders of some notably innovative environmental and architectural projects from straw-bale to all-foam. He was formerly a full-time faculty member of the School of Architecture at Arizona State University, and is a former Managing Editor of The Last Straw, the international journal of natural building technology. He is widely recognized as an authority in the use of alternative and ecological design and building ideas and technologies in high-design architecture.

jessehernreichJESSE HERNREICH graduated from Prescott College with a degree in Ecological Design and went on to receive a Permaculture Design Certificate in 2004. She trained as a Permaculture Teacher at CRMPI (Central Rocky Mountain Permaculture Institute) in Basalt, CO. Jesse is a 2007 graduate of the Ecosa Institute and began teaching Permaculture at both Prescott College and Ecosa in 2009. She is currently working on her own 35 acre permaculture site in the La Plata Canyon of southwestern Colorado, putting her permaculture knowledge to practical use.


ROB HUNT is currently a PhD student in the Sustainability Education program at Prescott College, where he also earned his Bachelor's and Master's degrees in Environmental Studies. He is program director at the Pritzlaff Ranch in New Mexico for the Biophilia Foundation, and also an adjunct faculty in the Adult Degree Program at Prescott College, teaching Ecology and Ecological Economics. He has been teaching a variety of environmental studies topics at Prescott College for the past 14 years and has an extensive background with government agencies, non-profit organizations, and private consulting firms working as a field biologist/ecologist, field botanist, and field ornithologist. His current research and projects are concentrated along the Arizona-Mexico border where he is working to employ sustainable economic development and education to aid in biodiversity and habitat preservation and restoration.

T BARNABAS KANE is a second generation landscape architect with a multi-disciplinary background in graphics, architecture and planning. He has a Bachelor of Science in Environmental Design with a minor in Fine Arts from the University of Massachusetts and is a registered landscape architect. His experience encompasses architecture, planning, fine art and historic preservation, plus specialization in sustainable landscape design. He promotes public awareness and understanding of landscape architecture and sustainability by serving as guest presenter at universities, conferences and organizations. He has designed landscapes and structures across the country. He has illustrated the publication, "Wildscaping: A Central Arizona Highlands Native Planting Guide."

BRAD LANCASTER has been teaching permaculture and running his own permaculture design consultation and education business since 1993. He and his brother have created, and live on, a thriving 1/8th of an acre urban permaculture site in downtown Tucson, Arizona. Within his neighborhood and beyond, Brad feeds his passion for community building and activism, resulting in the creation of an organic community garden, mini-nature park, salvaged bicycle cooperative, neighborhood newsletter, annual tree plantings, local food pot lucks, and more. He is author of Rainwater Harvesting for Drylands aimed at giving people the tools needed to welcome rainwater into their lives.

CARRIE LARSEN has a Bachelor of Science in Interior Design with a minor in Construction Management from Colorado State University. She is a graduate of the 2009 Ecosa Natural Building Workshop and the 2010 Total Immersion Semester. She has worked with Gensler- a multinational architecture and interiors firm in Los Angeles and Colorado. she has worked in all phases of the design process including programming, test-fitting, schematic design, design development, construction documentation, construction administration and project management. She has also been construction manager on many major projects including a $25 million apartment complex and a 132,000 square foot university laboratory facility.

CODY LUNDIN grew up with the outdoors, from the Pacific coastline and the hills of Europe, to the plains of the Rocky Mountains and desert canyons of the Southwest. His passion for freedom led him to a lifestyle of resourcefulness and simplicity through the exploration of self-reliance. He teaches with rare intensity and humor to individuals, schools, colleges, universities and various organizations throughout the United States. Cody holds a B.A. in Depth Psychology and Holistic Health. He founded the Aboriginal Living Skills School, LLC (ALSS, LLC) during the winter of 1991 in Prescott, Arizona.

BEN MANCINI is a Certified Solar Installer and worked as a solar hot water installer from 1980-1981. He built his own off-grid passive solar home between 1983 and 1990 and started his own business, EV Products, doing electric vehicle conversions in 1991. He is currently a licensed contractor for solar hot water and solar electric systems and adjunct faculty at Yavapai College for renewable energy applications in residential construction.



GARY MELVIN majored in Fine Arts at the University of North Dakota under the instruction of Brian Paulsen. His art career was put on hold when he was accepted to Medical School at the University of South Dakota. As a full time physician he only painted a limited amount during the next 30 years. In 2003 he was able to limit his busy medical practice enough to resume drawing and oil painting in earnest. He attended painting workshops in Laguna Beach and Scottsdale and trained extensively with the renowned English painter, Paul Abott. Gary won First Place, 2-D, for his oil painting in the 2006 Arizona Visions Art Competition and his studio was selected to participate in the 2006 Smithsonian CultureFest in Prescott, Arizona. Gary is now retired from the medical profession and paints full time in his studio in Prescott, Arizona. He works most exclusively in oils, pencil and conte. He uses a representational style to create protraiture, landscape, seascape, western, and plein air works of art.

JAMES PITTMAN is Director of Sustainability at Prescott College and has previously served as a mentor or instructor in all of Prescott College's undergraduate and graduate programs. He received his Bachelor's Degree in Ecopsychology, Education and Sustainability from Prescott College in 1997, a Masters of Science in Whole Systems Design from Antioch University in 2001 as well as a Masters of Science with distinction in Ecological Economics from the University of Edinburgh 2004. James previously taught in the Sustainable Business MBA program at Bainbridge Graduate Institute in areas focused on Systems Thinking and Dynamic Modeling.

James has served as a consultant to the President's Council on Sustainable Development, the United States Department of Agriculture Forest Service, the United States Department of Energy, the Washington State Department of Ecology, King County in Washington, the EcoSage Corporation, a Fortune 50 software corporation as well as various other agencies, corporations, non-profits and public utilities. He continually cultivates and authors publications with an extensive international network of colleagues in ecological economics, organizational development and education for sustainability.

JOHN PUCETAS is the President of SiteTek Financial Arts, Inc., a specialty consulting company providing original Value Strategies for the Built Environment. Their services strategically position clients to maximize the value received from financial investments made in new construction, renovation, acquisition, maintenance and life-cycle aspects of facility ownership. John is a Registered Architect, a Certified Value Specialist and holds a Bachelor of Science degree in Architecture from Ohio State University. He has thirty years of experience in facilities economics, project management and architectural design in both the public and private sectors. His current work involves assisting clients in achieving “best value” design solutions maximizing project performance criteria including sustainability, operations, maintenance and initial cost of construction.

MICHAEL PYATOK has been an architect and professor of architectural design for thirty-seven years. Since opening his own office in 1985, he has designed over 20,000 units of affordable housing for lower income households, winning numerous local and national design awards. During that period he has developed participatory design methods to facilitate the involvement of lower income communities in their revitalization. Using three-dimensional model kits, role-playing and game techniques he has helped many communities plan and implement the design and construction of new housing developments and community facilities. In 1995, he was elected to the College of Fellows of the AIA in recognition of his contribution to neighborhood planning and the design of affordable housing.

MARK RIEGNER PH.D. has been teaching courses including Animal Behavior, Coastal Ecology (in Kino Bay, Mexico), Evolutionary Biology, Form and Pattern in Nature and Tropical Biology (in Costa Rica). His research interests embrace phenomenological approaches to understanding plant and animal morphology, a theme on which he has numerous publications. Mark relishes the opportunity to offer students sound academic courses with a strong field component, through which they may discover first-hand the wonder of the natural world as well as aspects of themselves. “Nature provides limitless possibilities for learning about both the world and ourselves. In fact, they go hand in hand, as expressed in Goethe’s words: ‘Each phenomenon in nature, rightly contemplated, awakens in us a new faculty for inner understanding.’ By approaching nature with an open-minded attitude, and by learning to recognize and formulate our own individual questions, we can begin to develop the necessary tools to guide us through life.”