The Carbon, The Whole Carbon, and Nothing But the Carbon

The Carbon, The Whole Carbon, and Nothing But the Carbon

13 Nov 2024|Greenbuild 2024
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Brad BenkeBrad BenkeResearcher at Carbon Leadership Forum

Brad Benke is a Researcher at the Life Cycle Lab of the University of Washington and a Research Affiliate at the Carbon Leadership Forum where he works to develop and improve life cycle assessment methods, tools, and data to accelerate the decarbonization of the building industry. With a background in deep-green architecture and consulting, Brad focuses on creating data-driven resources and practical solutions for design practitioners and policymakers to scale low-carbon design and construction strategies. Brad is a former Senior Architect at McLennan Design, where he led diverse teams and stakeholders toward achieving decarbonization goals for buildings and organizations across the country. His recent work includes leading the CLF WBLCA Benchmark Study and developing the background data and methodologies for the CLF Embodied Carbon Policy Reduction Calculator. He currently serves on the Steering Committee for Architects Declare and the ILFI Energy and Carbon Technical Advisory Group.

Ryan DirksRyan DirksSustainability Specialist / Senior Associate at Perkins Eastman

Ryan Dirks is a Sustainability Specialist at Perkins Eastman, where he helps develop solutions that reduce our impact on the environment while providing exceptional spaces for building occupants. His expertise is in all things related to building enclosures, building-science education, and especially energy and carbon. Since 2008, Ryan has worked on a wide range of projects, ranging from single-family Passive Houses to hospital towers and nearly everything in between. He helped write the textbook Passive House Details, has presented at PHIUS Passive House conferences, and loves educating anyone that will listen about the benefits of sustainable design.

Matt RobertsMatt RobertsPostdoctoral Researcher at Center for the Built Environment - UC Berkeley

Matt is leading the Center for the Built Environment (CBE)'s life cycle assessment and embodied carbon research. Current projects include: investigating how carbon offsets are quantified and how they should be reported within net-zero carbon designations for buildings; collaborating with the Carbon Leadership Forum to conduct a study on the embodied carbon impacts of buildings in California; investigating the environmental impacts of landscape architecture; and benchmarking the embodied impacts of MEP systems. All research is focused on improving how LCA is used within the built environment while having a focus on improving the base level of knowledge on the topic to enable all members of the design team to engage in conversations related to the environmental impacts of their designs. Matt received his PhD from the University of Bath, UK, where his research focused on LCA methodologies applied to impact reduction strategies for buildings.

Wyatt RossWyatt RossBuilding Science Engineer at CMTA, Inc., Engineering Consultants

As a Building Performance Engineer at CMTA, Wyatt Ross is at the forefront of sustainable building design. He joined CMTA in 2017 and excels in providing innovative and cost-effective solutions for an array of market sectors nationwide. With an educational background in architectural engineering, Wyatt has consistently been involved in projects that reduce operational and embodied carbon emissions. An advocate for sustainable development, he has guided numerous clients toward the adoption of green building practices, striving to combat climate change in the built environment. Wyatt has served on ASHRAE's Task Force for Building Decarbonization, MEP2040 working groups, Cincinnati's 2030 District Energy Impact Team, and is a PE, Certified LEED Green Associate, and AEE CEM.

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Description

Whole life carbon assessment (WLCA) is a rapidly evolving framework generating significant interest and momentum in the design industry. Its ultimate goal is to fully account for all building-related carbon emissions and provide valuable information to design and policy communities to direct efforts for reducing impacts and meeting climate targets. Emerging standards aim to fill gaps and harmonize modeling practices but WLCA is challenging, and often varies in complexity, rigor, and completeness, limiting its usefulness and comparability. Additionally, WLCA focuses solely on carbon emissions, ignoring other environmental and social impacts. In this session, we explore the challenges, opportunities, and limitations of WLCA through two exciting projects. First, researchers from the CLF and UC Berkeley present preliminary results, findings, and recommendations to advance WLCA based on an analysis of 30 real-world buildings in the State of California. This study explores the relationship between embodied and operational carbon over time, the types of comparisons, if any, that can be made using readily available industry data, and the gaps and limitations that need to be addressed to improve industry practices. Second, designers from Perkins Eastman and CMTA discuss the carbon impacts of John Lewis Elementary, a Net Zero Energy, LEED Platinum school. The design team presents a detailed analysis of its embodied and operational carbon footprint and evaluates the effectiveness of hypothetical design iterations to reduce its life cycle impacts. This study’s scope extends beyond what is typically addressed, including embodied emissions from MEP systems, interior finishes, and the temporal emissions intensity of the grid. This analysis offers a detailed examination of the drivers behind embodied and operational carbon emissions in educational facilities and opportunities for their reduction. Throughout these examples, we will discuss the pros and cons of WLCA and lessons learned to improve the comparability and usefulness of building scale assessments.

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