Adams, Leigh

Leigh Adams is a consultant, educator, eco-sensitive designer and horticultural interpreter at Studio Petrichor and Metabolic Studio. She has trained many county agencies in regenerative practices as well as conducting hands-on workshops with local schools and professional groups. Her love of collaboration and education infuse all aspects of her work.

Peter Caldwell ASLA, PLA is a landscape architect at Asakura Robinson in Houston, Texas, and he has an educational background in Ecological Sciences and Engineering. His work focuses on barrier-free solutions through an ecological design lens. He is a leader in his professional organization (ASLA) where he brings innovative educational opportunities to the state and local membership.landscape architect at Asakura Robinson in Houston, Texas, and he has an educational background in Ecological Sciences and Engineering. His work focuses on barrier-free solutions through an ecological design lens. He is a leader in his professional organization (ASLA) where he brings innovative educational opportunities to the state and local membership.

Mary Coolidge is Portland Audubon’s BirdSafe campaign coordinator, working with architects, planners and designers to reduce hazards for birds in the urban environment while meeting other building design and performance objectives, including site lighting design, sustainability, livability and climate change objectives. She has a degree in Biology and formerly served as Audubon’s assistant conservation director.

Robert Glass founded Space Open Studio in 2018, a San Francisco Bay Area landscape design firm specializing in an ecologically sensitive and site-specific approach. He has worked on various projects as a landscape designer, water systems designer, project manager, construction manager, and muralist. Mr. Glass holds a BLA degree from Clemson University and an MLA degree from UC Berkeley.

Mr. Lai is a thought leader in sustainability, resiliency and conservation with over thirty years’ experience in landscape architectural design and planning. His interest in drawing and environmentalism as a child led him to a field that he describes as the ‘architecture of living things’ with an immense potential to impact quality of life for future generations. In addition to his extensive expertise in sustainable design and water issues, Mr. Lai’s facilitation and communication skills enable him to focus and maximize the creative energies of project collaborators toward innovative, yet practical solutions. His commitment to environmental advocacy is reflected in his teaching and speaking engagements, as well as his active involvement in the Los Angeles professional sustainability community. Mr. Lai is currently a Landscape Architecture Practice Builder for Kimley-Horn in Los Angeles, California. 

Paul W. Lander, PhD, MLarch, LEED A.P. , has over 40 years of experience in the conservation field- land, energy, and water, including 16 years leading the City of Boulder, Colorado’s award-winning water conservation program. He is an Adjunct Associate Professor of Geography, and on the Faculty for the professional degree, Masters of the Environment, both at the University of Colorado. He currently teaches about urban water systems, western water, and landscape.

Shawn Maestretti, the principal of Studio Petrichor and the creator of the talk series, “Regenerative Landscapes and the Climate Crisis,” has been designing thoughtful, engaging, vibrant green spaces and environmentally-sensible gardens since 2006. Mr. Maestretti is a designer, plantsman, licensed landscape architect, certified arborist, licensed landscape contractor, and educator.