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We organize events that

empower industry professionals to

radically reduce embodied carbon 

from buildings and infrastructure

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CLF Washington DC

CLF Washington DC is a local hub of the Carbon Leadership Forum. We organize local events that empower industry professionals to radically reduce embodied carbon from buildings and infrastructure. 

A diverse mix of professionals joins our events, including architects, engineers, contractors, sustainability consultants, material suppliers, building owners, and policymakers. Our events include informative presentations and interactive group discussions that address a range of topics relating to embodied carbon. We aim to build up local industry capacity to design and construct buildings and infrastructure that radically reduce embodied carbon.

CLF Washington DC is connected to the larger global network of the Carbon Leadership Forum, which brings together 5000+ professionals from 2500+ companies, 75+ countries, and 1000+ cities around the world. Our aim is to leverage our resources to promote change in our region. 

Sign up for our mailing list to learn about upcoming events, and become a member of the Carbon Leadership Forum to join the online discussion with the global CLF community.

About CLF Vancouver

What is CLF?

The Carbon Leadership Forum (CLF) is accelerating the transformation of the building sector to radically reduce the embodied carbon in building materials and construction through collective action.


CLF pioneers research, creates resources, fosters cross-collaboration, and incubates member-led initiatives to bring embodied carbon emissions of buildings down to zero.


The CLF network is made up of 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. 


Currently, the network brings together 5000+ professionals from 2500+ companies, 75+ countries, and 1000+ cities around the world

Join the Online

CLF Community

The CLF Community online platform brings together thousands of professionals from across the building industry, from over 30 countries and 100 cities around the world.

As a member, you can interact with a global network of interdisciplinary experts, where you can post questions, find resources, connect with local hubs, join focus groups, to keep track of upcoming events.  

To join the CLF Community online platform, become a member of CLF and and opt-in to join the online community when joining.

CLF Local Hubs 

CLF DC has inspired 25+ cities worldwide to start up local hubs. Check out a current listing of CLF local hubs to join.

Meet Our Co-Chairs

Rachel Nicely 

       Sustainable Program Manager, SBP

Kirsten Smith

      Sustainable Program Specialist, SBP


Upcoming Events

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DesignDC 2024: The Climate Crisis and Responsive Design

Thursday Feb 22, 2024, 9:00 AM – 4:00 PM

District Architecture Center, 421 7th St NW, Washington, DC 20004, USA

Join us at the District Architecture Center for the first DesignDC symposium of 2024, where architects and designers will gain key insights on mitigating operational and embodied carbon, talking to clients about regenerative design, policy, and financial incentives and resources.

In partnership with COTEdc and CLF DC.


Past CLF Washington DC Events

Reducing Embodied Carbon in Design Pt 2   Process and Strategy

Reducing Embodied Carbon in Design Pt 2 Process and Strategy

In Part 2 of our series on Reducing Embodied Carbon in Design, we will focus on Process and Strategy. Chris Chatto and Baha Sadreddin (ZGF Architects) will kick us off on their experience and process working through projects with a focus on embodied carbon and life-cycle assessments. Michael Cropper (Thornton Tomasetti) will then dive into some structural strategies to reduce embodied carbon in design. The event will end with a discussion and Q&A session with the speakers. Chris Flint Chatto is a principal and high-performance building specialist at ZGF. He focuses on integrating architectural design and building systems, working closely with project teams throughout all phases of a project to explore, identify and integrate sustainable design components, and optimize for building and occupant performance. He has taught climate responsive design, net zero energy, and integrated design studios at the University of Oregon, University of Washington, and Portland State University. His recent Rocky Mountain Institute Innovation Center project has been hailed as one of the highest performing buildings in the U.S., achieving Living Building Challenge petal certification with Net Zero Energy, and LEED Platinum certification, while operating “net positive.” Current projects in design include the PAE Living Building and two carbon-neutral central utility plants. Baha Sadreddin is a high-performance design specialist at ZGF Architects. He focuses on climate-responsive optimization through quantitative simulations and is interested in an integrated approach that leads to a meaningful balance between the quantitative performance and the qualitative essence of design. Baha has been integral to the development of ZGF’s life-cycle assessment tools and workflows to analyze carbon in concrete mixtures and envelope assemblies. His fluency with LCA modeling helps provide a deep understanding of applying low-embodied carbon strategies to ZGF’s designs. Baha received a Master in Design Studies in Energy and Environments from Harvard University (GSD), took graduate courses in Building Technology at MIT, and holds a Bachelor of Architecture from University of Oregon. Michael Cropper is a structural engineer with Thornton Tomasetti in their Washington, DC, office. He has over thirteen years of experience designing structures for commercial, retail, residential, hospital, government and cultural projects. Mr. Cropper also gained an increased awareness of global design and construction practices by working for four years in Thornton Tomasetti’s UAE offices. He is currently the project manager for the structural design of a large commercial office complex that is targeting significant reductions in embodied carbon.
Reducing Embodied Carbon in Design (Pt 1) | Lauren Wingo & Kirsten Smith

Reducing Embodied Carbon in Design (Pt 1) | Lauren Wingo & Kirsten Smith

CLF DC - Reducing Embodied Carbon in Design Pt. 1 (April 16, 2021) Benchmarking, Timeline, and SE 2050 This will be the first of a two-part series on the strategies and tools for addressing embodied carbon in design. Lauren Wingo (Arup) and Kirsten Smith (Sustainable Building Partners) will join us for Part 1, focusing on benchmarking, timeline, and The Structural Engineering Institute's SE 2050. Lauren Wingo is a licensed structural engineer in Arup’s Washington, DC office. She is a regional expert in structural sustainability and applies this knowledge to her projects, focusing on reinvigorating existing building assets and utilizing low embodied carbon structural materials. Her project work ranges from a mass timber high school gymnasium to a large-scale adaptive reuse project. Lauren serves on the Structural Engineering Institute's Sustainability Committee and leads the database development effort for the SE 2050 Commitment Program. Lauren is a member of the District of Columbia Construction Codes Coordinating Board Structural Task Group where she supports efforts to review and update local building codes. Lauren has a degree in Civil Engineering from Johns Hopkins University and a Master’s in Civil Engineering from George Washington University. Kirsten Smith is a Sustainable Program Specialist at Sustainable Building Partners (SBP) where she consults on green building projects in the DMV area and beyond. She has jump-started the Life-Cycle Assessment services at SBP and works to educate, benchmark, guide, and reduce the environmental impact associated with material choices in the built environment. She is also a co-chair of the new CLF Washington DC Hub, with which she hopes to bring industry professionals together to discuss and tackle the problems associated with embodied carbon locally. Kirsten has a degree in Construction Engineering and Management from Virginia Tech.