Who We Are

The Carbon Leadership Forum: Who We Are
The Carbon Leadership Forum propels knowledge, collaboration and action to radically reduce the embodied carbon in building materials and construction

Who We Are

The Carbon Leadership Forum accelerates the transformation of the building sector to radically reduce the embodied carbon in building materials and construction through collective action.

We pioneer research, create resources, foster cross-collaboration, and incubate member-led initiatives to bring embodied carbon emissions of buildings down to zero.

We are architects, engineers, contractors, material suppliers, building owners, and policymakers who care about the future and are taking bold steps to decarbonize the built environment, with a keen focus on eliminating embodied carbon from buildings and infrastructure.

Our Vision

We envision a transformed, decarbonized building industry – better buildings for a better planet.

Our Mission

Our mission is to eliminate embodied carbon in buildings and infrastructure by inspiring innovation and spurring change through collective action.

Our Values

Determination – We are steadfast in our efforts to eliminate embodied carbon in building materials and construction.

Inclusion and Collective Action – We welcome architects, engineers, contractors, material suppliers, building owners, policymakers and associations and foster cross-collaboration to enable a more informed community and spur accelerated outcomes.

Empowerment – We encourage, foster and support members to become champions and move forward their ideas.

Integrity – We ground our work in science and data to understand the full complexity of issues and develop practical solutions.

Transparency – We foster a culture of openness and honesty. We freely share knowledge and resources to advance the field.

How We Do It

Recognizing that buildings account for nearly half of global CO2 emissions, the Carbon Leadership Forum, a non-profit organization at the University of Washington, is dedicated to accelerating the transformation of the building sector to radically reduce the embodied carbon in building materials and construction through collective action.

The Carbon Leadership Forum propels knowledge through its embodied carbon research and resources, collaboration through its robust network of architects, engineers, contractors, material suppliers, building owners, policymakers and associations, and action by supporting and empowering its members to advance new ideas and approaches through impactful initiatives.


We investigate the pathways for maximizing carbon reductions and lead collaborative research with material experts, NGOs, industry partners and policymakers.


We accelerate learning by crowdsourcing and disseminating knowledge that empowers our members.


We bring together architects, engineers, contractors, material suppliers, building owners, policymakers and associations, through environments designed to connect inspired advocates and spark unprecedented collaboration.


We accelerate market transformation by inspiring, supporting and empowering our members to advance new ideas through impactful initiatives.

Meet Our Team

Director & Board  (click on image for bio)

Kate Simonen

Kate Simonen

Executive Director

Office: Architecture Hall 130K
Phone: (206) 685-7282

Kathrina Simonen (Kate), AIA, SE, is a professor and Chair of the Department of Architecture in the College of Built Environments at the University of Washington. She is licensed as an architect and structural engineer, and joined the faculty at the University of Washington with over 15 years of professional practice experience bringing expertise in high performance building systems, seismic design and retrofitting, net-zero energy residential construction, prefabrication and collaborative practice. Her research is focused on environmental life cycle assessment (LCA), integrated practice and innovative construction materials and methods.

She is founding director of the Carbon Leadership Forum, an industry-academic collaborative research effort focused on linking LCA to design and construction practice to advance low carbon construction. She authored a handbook on LCA for building industry professionals, Life Cycle Assessment, which was published in 2014.

Wolfgang Werner

Wolfgang Werner

Urban Fabrick


Wolfgang Werner, AIA, LEED AP BD+C, CPHC, USGBC Faculty, is an architect and building sustainability expert with extensive consulting and education experience ‐ motivated by the urgency for our generation to respond to the defining challenge of our time: climate change. He is the President & CEO of Urban Fabrick, Inc., a sustainability and communications consultancy with offices in San Francisco and New York City. He has more than 20 years of experience in building sustainability, architectural design, construction administration and building investigation. His areas of expertise include general building sustainability concepts, strategies, and technologies, environmental rating & certification systems, building codes, policy, standards, regulations, Passive House design, and embodied energy and carbon.

Wolfgang holds a Dipl.‐Ing. degree in architecture from the Technische Universität, Berlin, Germany and a master’s degree in architecture from Pratt Institute, Brooklyn NY.

Christie Gamble

Christie Gamble



Christie Gamble is Director of Sustainability at CarbonCure Technologies. CarbonCure is leading a movement to reduce the carbon footprint of the concrete industry, and thereby help reduce embodied carbon in the built environment. Christie acts as a liaison between the sustainable design community and the concrete industry in order to promote the manufacturing and subsequent usage of lower carbon concrete. Christie lives in Saskatchewan with her husband and 2 young children and loves to compete in the quintessentially Canadian sport of curling in her spare time.

Frances Yang

Frances Yang



Frances Yang specializes in how environmentally preferable and healthier materials contribute to whole-life sustainability performance of our built environment. She is active on the Carbon Leadership Forum, AIA Materials Knowledge Working Group, and Health Product Declaration Technical Committee. She also recently vice-chaired the USGBC LEED Materials and Resources TAG and led authorship of two recently published texts: the SEI Whole Building LCA Guide: Reference Building Structure and Strategies, and the AIA Prescription for Healthier Building Materials: A Design and Implementation Protocol. In leading Arup’s Americas Sustainable Materials Consulting practice, Frances has brought healthy and low-carbon aims into the day-to-day consideration of materials alongside selection for their technical performance on a variety of buildings and infrastructure projects.

Amy Hattan

Amy Hattan

Thornton Tomassetti

Phone: 207.245.6060

Amy Hattan, LEED Green Associate, is Vice President of Corporate Sustainability, Thornton Tomasetti. In this role, she oversees efforts to reduce the carbon footprint of Thornton Tomasetti’s business operations and works to integrate sustainability practices into all services at a 1200+ employee international engineering firm. She manages Thornton Tomasetti’s embodied carbon R&D program and the firm’s reporting to the AIA for the 2030 Commitment. Amy is a recipient of the City & State Reports’ 2015 Corporate Social Responsibility award, and she co-facilitated the development of the Building & Real Estate Sector Climate Declaration. Her 20+ years experience working in the sustainability field includes directing a program to advance green building in higher education at Second Nature and building campus sustainability programs at the University of New Hampshire and Middlebury College.

She received a Masters in Public Administration from Harvard University’s Kennedy School of Government.

Eden Brukman

Eden Brukman

SF Dept. of the Environment


Eden Brukman is the Senior Green Building Coordinator at San Francisco Department of the Environment. Since 1996, Eden has focused on establishing socially and environmentally responsible solutions for human habitat: she coauthored Living Building Challenge and directed its evolution and global deployment from 2007-2012; served as the first Technical Director of the Health Product Declaration Collaborative; and contributed to the early development of other programs such as Declare, the Pharos Project, and EcoDistricts. Also licensed architect, Eden’s advocacy efforts have led to policy reform, decentralized building and community developments, and the creation of a network of local action groups in cities all over the world.

Victor Olgyay

Victor Olgyay

Rocky Mountain Institute


Victor Olgyay, AIA is a bioclimatic architect living in Boulder, Colorado. In 1978 he designed his first passive solar house, and has since worked as an architect, writer, professor, researcher, daylighting designer, and environmental consultant. Since 2005, he has been a principal with Rocky Mountain Institute leading the Institute’s Buildings Practice to encourage widespread adoption of deeply efficient building design and comprehensive building energy retrofits.

From 1993 to 2000 Victor was an Associate Professor and Director of Research at the University of Hawaii School of Architecture. He was appointed Chairman of the AIA Honolulu Energy and Environment Committee 1995–2000, and in 1998 he was named a Dana Fellow of the Joslyn Castle Institute for Sustainable Communities. He has served on the Board of Directors for the American Solar Energy Society, and is currently on the University of Colorado Design Review Board, and the GSA Green Building Advisory Committee.

Buildings must support human and ecological needs. Victor’s research on ecosystem services as criteria for green building assessment resulted in the “Green Footstep” building tool, demonstrating a lifecycle approach to the reduction of carbon, water, and ecological footprints. His recent work demonstrates how restorative buildings and communities (that generate more resources than they consume) can be profitable investments and act as positive assets, enhancing electrical and utility system infrastructures.

William Paddock

William Paddock

WAP Sustainability


William Paddock is the founder & managing director of WAP Sustainability, a leading provider of sustainability services that include carbon accounting, lifecycle assessments, toxicological assessments, product transparency programs, and supply chain sustainability services. Paddock is a graduate of the University of Alabama with a B.S. in Environmental Science and holds a MBA from The Institute for Sustainable Practice at Lipscomb University where he is now an Adjunct Professor. He is a certified professional in GHG Management by the Greenhouse Gas Management Institute and EcoCanada (EP(ghg)), a trained service provider for The Sustainability Consortium and is certified in the Global Reporting Initiative (GRI) reporting protocol. Paddock serves as an EcoSystem Partner for the International Living Future Institute (ILFI), is vice-chair of the LEED Materials and Resource Technical Advisory Committee (MR TAG), a member of the IWBI WELL Materials Advisory Committee and supports the Health Product Declaration Collaborative (HPDC) as a member of its Technical Committee.

Stacy H. Smedley

Stacy H. Smedley



Stacy Smedley, LEED BD+C, Living Future Accredited, is Director of Sustainability, Skanska USA Building and CEO, The SEED Collaborative. Stacy’s resume includes the first LEED for Homes Platinum certified project in Washington and first project in the world certified under Living Building Version 2.0, the Bertschi School Living Science Building. At Skanska, Stacy leads sustainable initiatives and progressing sustainable construction methods. She is co-founder and CEO of SEED Collaborative, creating environmentally restorative learning spaces that educate and inspire. Stacy is committed to engaging her community in sustainable design and has served as a member of the AIA National Materials Knowledge Working Group, advisory board member for the Carbon Leadership Forum, founding member of Washington Businesses for Climate Action, Membership Chair for Cascadia Green Building Council, Regional Emerging Professionals Recruitment Chair for USGBC, Sustainable Curriculum Consultant, and 2013 Scholar in Residence for the National Association of Independent Schools. She works with K-12 and higher education facilities, offering workshops that engage students in applying sustainable principles to design spaces they can learn in and from. Stacy is a 2012 Living Building Hero.

University of Washington Staff & Students

Anthony Hickling

Anthony Hickling

Managing Director


Anthony Hickling joins CLF with experience in environmental and social sustainability as well as nonprofit management and fundraising. His foundations in sustainable building are informed by experience at Presidio Graduate School where he received an MBA in Sustainable Solutions, as well as his work on the sustainability team at Webcor Builders in San Francisco. Through academic and professional experience he has learned to navigate the priorities of traditional business stakeholders while incorporating social and environmental externalities. From executing successful marketing plans to determining research priorities, Anthony believes that wide impact considerations and diversity of thought should be embedded into all decision-making.

Moazamah Rubab

Moazamah Rubab

Undergraduate Research Assistant

Stephanie Carlisle

Stephanie Carlisle

Research Scientist


Stephanie’s work investigates the interaction between the natural and constructed environment, including embodied carbon, life cycle assessment (LCA), urban ecology, landscape performance and supply chains and toxicity of building materials. Combining a background in environmental science and architectural design, she builds bridges between research and practice, bringing data-driven analysis and topical research to complex design problems. This experience will be applied towards improving the EC3 tool as well as other carbon data initiatives at the Carbon Leadership Forum. She most recently was a Principal at KieranTimberlake Architects where she was an environmental researcher in the firm’s interdisciplinary research group. She is also a lecturer at the University of Pennsylvania Stuart Weitzman School of Design and a Co-Editor-In-Chief of Scenario Journal. 

Andrew Himes

Andrew Himes

Director of Collective Impact


Andrew Himes is a program specialist at the Carbon Leadership Forum at the University of Washington, working on collective impact initiatives to reduce embodied carbon emissions in new building construction. He is a partner in Carbon Innovations LLC, a social impact business consultancy focused on business-based solutions to climate change. Himes was the founding editor of MacTech, the leading Apple technology journal, then co-founded the Microsoft Developer Network and led the first web development project at Microsoft. In 2018, he was coordinator of Carbon Smart Building Day, a conference affiliated with the Global Climate Action Summit focused on transforming the global building industry to net-zero carbon emissions by 2050. Himes was founding director for the Charter for Compassion International. He is the author of “The Sword of the Lord: The Roots of Fundamentalism in an American Family.”

Monica Huang

Monica Huang

Research Engineer


Monica Huang is a research engineer for the Carbon Leadership Forum at the University of Washington with expertise in environmental life cycle assessment (LCA). Recent research topics include the environmental impact of housing, optimizing tall wood structures, and developing data on the environmental impact of earthquake damage. She was also the lead author for a guide on the use of LCA in design and construction practice. Past research experience includes diverse topics such as astronomy, electronic waste, and sea level rise.  As a graduate student, she developed the Port of Seattle’s first study on the impacts of sea level rise on seaport structures.

Julie Kriegh

Julie Kriegh

Research Scientist


As principal and founder of KRIEGH ARCHITECTURE STUDIOS | Design + Research, Julie Kriegh brings her clients’ project goals to fruition while adhering to the values of sustainability, high-performance construction principles, exceptional craft and attention to detail. These principles apply to custom single-family, multi-family, and residential community developments, as well as religious, medical, educational, and municipal facilities. She offers collaborative, team-oriented architectural services that result in custom designs that are aligned with her clients’ project needs. As a  passive house designer, Julie uses state of the art energy modeling software to design and consult on net-positive energy buildings.

Dr. Kriegh is currently working on several research initiatives at the University of Washington, Seattle. Collaborating with a team of  university researchers and industry partners on sustainability issues, Dr. Kriegh is leading research on building and occupant performance using wireless sensing devices and tailored feedback on energy use in residential settings. As a Research Scientist, she belongs to a consortium between UW, UA, Microsoft and Google researching the future of sustainable Data Centers. In addition, Dr. Kriegh is working with the UW Carbon Leadership Forum investigating materials for the Carbon Storing Data Center of the future to advance Microsoft’s goal to be carbon neutral by 2030 and carbon negative by 2050.

Julie received a PhD from the University of Washington in 2018, where her research focused on high-performance buildings, building user behavior and environmental psychology.

Meghan Lewis

Meghan Lewis

Research Scientist


Meghan has been an active contributor at the Carbon Leadership Forum, and played a crucial role as a contributing editor to the Practice Guide for the Life Cycle Assessment of Buildings. She also chairs the Building Focus Group in the CLF Online Community. As a staff member she’ll be responsible for leading policy research to support Buy Clean initiatives. Meghan is an architect and was recently the head of Global Energy and Sustainability at WeWork, where she led efforts to source sustainable materials for their growing portfolio of over 400 communities in 100 cities across the globe. Before joining WeWork, Meghan was a practicing architect at Mithun, where she worked on a range of project types and developed office-wide sustainability guidelines as part of the firm’s sustainability team. She also led internal efforts to integrate whole building life cycle assessment and low carbon material selection into the design process, through R+D and implementation on active projects.

Past Staff and Students

Barbara X. Rodriguez, Graduate Research Assistant

Tina Dilegge, Program Manager

Jim Ditto, Graduate Research Intern

Alex Ianchenko, Undergraduate Research Assistant

Dalton Owens, Undergraduate Research Assistant

Jorge Gomez, Undergraduate Research Assistant

Lindsay Todaro, Graduate Graphics Assistant


Thipok (Poom) Cholsaipant, Undergraduate Graphics Assistant

Stephanie Barrera, Graduate Research Assistant

Kristen Strobel, Graduate Research Assistant

Mariam Hovhannisyan, Graduate Research Assistant

Weston Norwood, Graduate Research Assistant

Ezekiel Jones, Undergraduate Research Assistant

Daniele Alampay, Undergraduate Research Assistant

Corey S. Ayers, Undergraduate Research Assistant

Claire Cyra, Undergraduate Research Assistant

Mazohra Thami, Graduate Research, and Graphics Assistant

Yasaman Esmaili, Graduate Research Assistant

David Fish, Graduate Research Assistant

Josslyn Shapiro, Graduate Research Assistant

Aiwen Xie, Visiting Graduate Exchange Student Research Assistant

Volunteer Leads and Consultants 

Online Community Leads

Wil Srubar
Carbon Leadership Online Community, Co-chair
Assistant Professor, University of Colorado Boulder

 Erin McDade
Carbon Leadership Online Community, Co-chair
Senior Program Director, Architecture 2030

Focus Group Chairs

David Arkin
Focus Group: Renewable Materials
Director, California Straw Building Association (CASBA)
Architect, Arkin Tilt Architects

Stephanie Carlisle
Focus Group: Education/Research
Principal and Environmental Researcher, Kieran Timberlake

Jeremy Gregory
Focus Group: LCA Data & Tools
Research Scientist, Department of Civil and Environmental Engineering, MIT
Executive Director, Sustainability Hub, MIT

Meghan Lewis
Focus Group: Buildings
Architect and Global Supply Chain Sustainability Manager, We Company

Stacy Smedley
Focus Group: Construction
Director of Sustainability, Skanska USA Building

Larry Strain
Focus Group: Reuse
Founding Principal, Siegel & Strain Architects

Dave Walsh
Focus Group: Materials Focus Group
Director of Sustainability and Design Integration, Sellen Construction

Ryan Zizzo
Focus Group: Policy
Founder and COO, Mantle314

Outreach Leads

Victoria Herrero-Garcia
Carbon Leadership Forum Webinar Coordinator
Sustainability Consultant, Ambient Energy

Allyn Vodicka
Carbon Leadership Forum Education/Outreach Specialist
Lighting Designer, Pivotal Lighting Design | Affiliated Engineers, Inc.

“News You Can Use” Leads

Martin Torres
Content Lead
Graduate Structural Engineer, Walter P. Moore

Fred Bernstein
Content Contributor and Editor
Independent Publishing Professional

Outside Consultants

Anne Banta
Branding and Communications

2M Creative
Graphic Design: Web, Print and Corporate Identity

Brook Waldman
LCA Specialist

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