Carbon Leadership Forum

SEATTLE– September 23, 2019

Press Release: Breakthrough tool empowers users to radically reduce embodied carbon in buildings and infrastructure

The Embodied Carbon in Construction Calculator (“EC3”) tool delivers the first digitized EPDs for construction materials in a free platform designed to accelerate early adoption across the entire construction industry.

As the world builds the equivalent of an entire New York City every month, reducing the carbon emissions of materials is an imperative.

The Carbon Leadership Forum, in partnership with a coalition of more than 30 forward looking and innovative building industry leaders announce that they have taken on a long-elusive goal – measuring and reducing the carbon footprint of building materials. The result is the Embodied Carbon in Construction Calculator (“EC3”), an open source tool for architects, engineers, owners, construction companies, building material suppliers and policy makers to compare and reduce embodied carbon emissions from construction materials.

Read the Release

Upcoming events



  • March 2-4, 2020 | Los Angeles, CA | CarbonPositive’20 Conference and Expo
    The INTERNATIONAL CONFERENCE and EXPO will provide a “how-to” for rapidly implementing a carbon positive future through mainstream global planning and building design, practice and policy. Sessions, speakers and exhibitors will showcase innovative construction and building materials, advanced technologies, design and planning tools, and practices and policies that dramatically reduce urban development, building sector, and embodied carbon emissions to deliver rapid and pragmatic results. This annual event is open to all, including building sector professionals, architects, planners, policymakers, engineers, builders, developers, academics and manufacturers.

Past events




  • November 9, 2017 | Boston, MA
    • CLF-hosted “Whole Building LCA Practice Guide Workshop”
    • CLF-hosted “Low Carbon Summit”
  • November 8, 2017 | Boston, MA | Greenbuild | “Kicking Carbon for Credits: LEED v4 Whole­Building LCA”
  • March 16, 2017 | Seattle, WA | CERC Applied Research Conference | “Getting to Zero: Reducing the Carbon Footprint of Building Construction”


  • September 14, 2016 | Pittsburgh, PA | Living Products Expo | “The Time Value of Carbon, Getting to Zero by 2050”
  • May 16, 2016 | Washington D.C. | Concrete Sustainability Conference | “Comparing Concrete EPDs: Motivation, Challenges and Next Steps”


  • May 15, 2015 | Atlanta, GA | AIA National Convention | “Materials Matter: Materials and Carbon Emissions”
  • May 13, 2015 | Atlanta, GA | AIA/ACSA Intersections Conference | “Testing Whole Building LCA: Research and Practice”
  • April 23-25, 2015 | Portland, OR | ASCE SEI Structures Congress | “Integrating Environmental Impacts as another Measure of Earthquake Performance for Tall Buildings in High Seismic Zones”


  • October 7, 2014 | San Francisco, CA | American Center for Life Cycle Assessment Conference, LCAXIV | “LCA Methodology and PCR development challenges for structural building materials”
  • April 17, 2014 | Portland, OR | Sustainable Structures Symposium | “Life Cycle Assessment Challenges and Structural Materials”


  • September 26, 2016 | Tacoma, WA | American Center for Life Cycle Assessment Conference, LCAXII
    • “Concrete Product Category Rules: The Intersection of Science, Policy and Practice”
    • “Life Cycle Assessment and Buildings Research for Washington State”
  • May 2012 | Seattle, WA | International Concrete Sustainability Conference
    • “Environmental Product Declarations: U.S. Policy Drivers and Implications for the Concrete Industry”
    • “Concrete Product Category Rules: Technical Details and Industry Implementation”
  • July 2012 | Nantes, France | International Symposium on Life Cycle Assessment and Construction | “Environmental Product Declarations for Building Materials and Products: U.S. Policy and Market Drivers”


  • August 2011 | Toronto, ON | Building Technology Educators Society Conference | “Teaching Building Life Cycle Assessment: LCA in Architecture & Engineering Education”
  • June 2011 | Berkeley, CA | International Society for Industrial Ecology Conference | “Life Cycle Assessment in Building Design Process”



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  • Apply to get access to the EC3 tool in November.
  • Join the Embodied Carbon Network.
  • Support the Structural Engineers SE 2050 Challenge.