by Lauren Richardson
Sustainability Manager at Green Badger
The Problem: Why Embodied Carbon Is So Hard to Reduce
Embodied carbon is a major part of a building’s climate impact, but remains among the hardest for project teams to address. The issue isn’t intent; it’s a lack of credible reference points. Teams are told to “reduce embodied carbon” without clear answers to basic questions, such as: Reduce compared to what? How much is meaningful? What’s achievable today?
Without consistent benchmarks, efforts to lower embodied carbon become fragmented. Designers may set targets misaligned with available materials. Contractors often face late-stage substitutions due to cost or schedule constraints. Manufacturers struggle to demonstrate product performance. The result: uncertainty in decisions and carbon reductions that remain unverified or are lost to late-stage value engineering.
The Carbon Leadership Forum (CLF)
Embodied carbon is central to decision-making in the built environment. Since its founding in 2009, The Carbon Leadership Forum (CLF) has set standards for rigor, transparency, and action by translating complex life-cycle data into practical tools. With the release of the CLF 2025 North American Material Baselines Report and the CLF 2025 Embodied Carbon Benchmark Report, project teams now have clearer reference points and realistic reduction targets that align design ambitions with construction realities and climate accountability.
CLF’s Solution: Turning Carbon Data into Shared Standards
The Carbon Leadership Forum provides credible, shared reference points by transforming thousands of Environmental Product Declarations (EPDs) into statistically sound, material-specific benchmarks and baselines when adequate data exists. Rather than prescribing a single product, CLF defines transparent reference points that enable embodied carbon comparisons, performance-based criteria, geographic limits, and common units for standardized comparisons.
Common Language and Clarity
These benchmarks establish a common language for project teams. Designers set defensible targets early. Contractors evaluate bids and substitutions against clear performance thresholds. Owners and policymakers have measurable, comparable reductions. CLF’s approach boosts clarity, not limits.
What Happens When the Solution Is Applied
When CLF benchmarks are applied, embodied carbon becomes a manageable project metric. Teams make earlier, better-informed decisions, and procurement is data-driven. Manufacturers are rewarded for transparency and improvement, not just marketing claims.
Importantly, carbon reductions become repeatable and scalable. Projects no longer rely on heroics but follow a playbook guided by shared data. Over time, this brings market consistency, stimulates innovation, and accelerates the shift to lower-carbon materials.
- Updated, data-driven baselines reflecting current North American manufacturing and supply chains (Europe will follow when the data is available)
- Material-specific benchmarks for concrete, steel, asphalt, masonry, insulation, and more. Powered by CLF’s benchmarks, Green Badger’s redesigned interface simplifies the process; select your product and instantly see how it measures up.
- Statistically robust datasets sourced from verified EPDs
- Practical application for project teams from early design targets to contractor procurement and sub-installment
- Alignment with green building programs (LEED, Buy Clean, CALGreen, public-sector requirements)
- A shared language that enables owners, designers, contractors, and manufacturers to collaborate around measurable carbon reduction
Transparent, Shared, Credible Data
Together, the 2025 Embodied Carbon Benchmark Report and CLF North American Material Baselines reinforce a simple but powerful idea: meaningful carbon reduction starts with shared, credible data.
By grounding embodied carbon conversations in transparent benchmarks, CLF empowers teams to move beyond aspirational goals and toward informed, actionable choices—on real projects, with real constraints. As embodied carbon requirements continue to evolve across codes, policies, and market expectations, these resources provide a critical foundation for anyone serious about delivering lower-carbon buildings.
Why CLF’s Data Matters More than Ever
Embodied carbon is shifting from voluntary best practice to market expectation—and, in many cases, a contractual requirement. Public-sector Buy Clean policies, private-sector ESG commitments, and evolving building codes and green building programs are increasingly requiring project teams not just to report embodied carbon but to benchmark it against credible, industry-accepted baselines.
At the same time, contractors and manufacturers are being asked to make decisions earlier—often before the full design is locked in—while material pricing, supply chains, and availability remain volatile.
The 2025 CLF benchmarks and material baselines arrive at a pivotal moment. They give teams a shared, defensible reference point to set realistic targets, evaluate alternatives, and avoid last-minute carbon “value engineering” that undermines both performance and schedule. In a year when embodied-carbon performance can influence project approvals, procurement outcomes, and competitive positioning, these tools help the industry move faster with greater confidence and measurable climate impact.
The Importance of Supporting the Carbon Leadership Forum
Green Badger is proud to have supported CLF since 2021, and we greatly appreciate their ongoing research and the many excellent resources they provide. It’s critical for those of us in the building industry to financially support CLF because it does the hard work that makes embodied-carbon action possible at scale—and benefits the entire market, not just individual projects.
CLF creates the shared data, benchmarks, and policy frameworks that owners, designers, contractors, manufacturers, and policymakers all rely on to set credible targets, comply with emerging regulations, and avoid a fragmented patchwork of requirements. Without sustained funding, that backbone work slows down or disappears, leaving the industry with inconsistent rules, higher compliance risk, and more costly guesswork. Financially supporting CLF is an investment in market clarity, fairness, and long-term cost certainty—ensuring that embodied carbon reduction is practical, defensible, and scalable, rather than a burden borne by a few early adopters.
Carbon Leadership Forum website: https://carbonleadershipforum.org/
