ICE Database — The Definitive Reference

1. Executive Summary

The ICE Database is a free, downloadable Excel-based embodied carbon factor library covering more than 200 construction materials, maintained by Circular Ecology Ltd and produced from a structured literature review of published Environmental Product Declarations (EPDs) under EN 15804, peer-reviewed academic LCAs, industry-published lifecycle data, and Circular Ecology’s own analytical processes. Operative version as of May 2026 is v4.1, released October 2025, which made targeted updates to GGBS, bitumen, and asphalt factors on top of the substantial v4.0 expansion in November and December 2024.

What the ICE Database is structurally: a cradle-to-gate (Modules A1–A3) embodied carbon dataset, scoped consistently with EN 15804+A2, with selective Module D coverage for metals where compatible data is available. A literature-review aggregation, not a primary LCA — the values are mean (and, for some materials, range) coefficients derived from multiple original studies, with data quality indicators introduced in v3.0 and substantially expanded in v4.0. A free educational resource, with two parallel versions (Educational and Advanced) both free to access in their respective use scopes; the Advanced version contains material profiles and the ICE Concrete & Cement Tool. A commercial resource for non-educational use, requiring registration under either the Individual Licence (for professional/consultant use without embedding) or the Tools & Integration Licence (for embedding into software, APIs, or databases), with the previously-bundled Machine-Readable format now a separately purchased product whose proceeds reinvest in database maintenance.

What it is not: a primary LCA study; a project-specific EPD source; a whole-life carbon dataset (Modules A4 onwards are out of scope); an embodied energy database (energy factors were removed from 2019 as the wider literature stopped reporting them); a country-specific or region-specific factor set (most values are UK-context with some international coverage but no systematic regional granularity); or a substitute for product-specific environmental data when procuring materials for an actual project.

2. Chain of Custody — From Published EPD to Specification Decision

Every embodied carbon figure produced from ICE Database values rides a specific chain. The mapping below is the one any project sustainability officer, BREEAM AP, RICS WLCA assessor, or Scope 3 inventory owner should be able to draw before quoting an embodied carbon number.

3. What the ICE Database Is — and What It Is Not

The ICE Database is conflated, in practice, with several adjacent things it is not. The distinctions below matter because using the wrong document or wrong scope in a methodology statement produces a citation that does not support the claim being made.

4. Version History — 2005 to v4.1

The ICE Database has been continuously developed for two decades. Each version brought specific methodology refinements, dataset expansion, or scope changes. The timeline below documents the version lineage with the principal characteristic of each release.

5. What’s New in v4.0 and v4.1

The two recent versions account for the substantial step-change in ICE Database content and infrastructure. Understanding the v4.0 and v4.1 changes is essential for any practitioner moving from a v3.0-era methodology document to current best practice.

5.1 v4.0 (November/December 2024) — The Net Zero Flow Expansion

Circular Ecology received Innovate UK funding for a project called “Net Zero Flow” (2021–2024), led by xbim, aimed at aligning BIM (Building Information Modelling) workflows with embodied carbon modelling. Part of that grant funded systematic expansion of the ICE background dataset. The v4.0 launch documented:

• Dataset doubling. The background ICE dataset size approximately doubled relative to v3.0, with expanded coverage of materials, sub-categories, and source studies.
• Expanded data quality framework. The v3.0-introduced data quality indicators were substantially refined and applied systematically across the expanded dataset.
• Dual-version structure. The Educational version (download via simple form, free for learning, teaching, and academic research) and Advanced version (registration required, free, includes material profiles and the ICE Concrete & Cement Tool) became the operative distribution model.
• Machine-Readable format. A structured machine-readable format for tools integration was packaged alongside v4.0 Advanced, before being broken out as a separate paid product in the April 2026 licensing reform.
• Backwards compatibility. v3.0 entries remain viewable within v4.0 for users transitioning legacy methodology documents.

5.2 v4.1 (October 2025) — The GGBS & Bitumen Update

v4.1 is a targeted incremental update, not a structural revision — but its impact on cement, concrete, and asphalt embodied carbon calculations is substantial enough to warrant careful methodology updating for any practitioner whose work touches those materials.

• GGBS allocation reform. Ground Granulated Blast-Furnace Slag is a co-product of primary steel production. Earlier versions of ICE applied zero allocation of steel-making emissions to GGBS (treating it as a near-waste with the entire emission burden carried by steel). Wider EN 15804 practice has shifted to economic allocation, in which a portion of the steel-making emissions is allocated to GGBS based on its economic value relative to primary steel. v4.1 adopts the economic allocation approach. This systematically raises the embodied carbon of GGBS-blended cements and concretes relative to v4.0 values. All published cement and concrete mixes containing GGBS were recalculated.
• Bitumen update. Bitumen embodied carbon factors updated to reflect the most recent Eurobitume European LCA, which is the industry-body authoritative source for European bitumen.
• Asphalt mixing energy update. Newer data on asphalt mixing energy was incorporated. Because bitumen is an ever-present component of asphalt, all asphalt emission factors were updated.
• ICE Concrete & Cement Tool update. The companion tool was updated to incorporate the GGBS allocation change and the revised cement-and-concrete mixes.
• v2.0 deprecation flagging. Circular Ecology signalled forthcoming retirement of v2.0-era legacy data points, citing data age and reliability concerns.

6. Scope & Boundary — Cradle-to-Gate (A1–A3) per EN 15804

The ICE Database boundary is one of its most consequential characteristics — and the dimension most frequently misunderstood. ICE provides cradle-to-gate (Modules A1–A3) embodied carbon values consistent with the EN 15804+A2 module structure. For metals, ICE includes compatible Module D (benefits and loads beyond the system boundary) data where it is available in the underlying literature. All other modules — transport to site, construction installation, use phase, end-of-life — are outside the ICE scope and require separate data.

The full EN 15804+A2 module structure with ICE coverage highlighted:

The boundary choice is consequential. For a whole-life carbon assessment of a building, A1–A3 typically accounts for 50–70% of life-cycle embodied carbon (the remainder spread across A4 transport, A5 installation, B-stage replacements, and C-stage end-of-life), but the proportions vary substantially by building type, design life, and material specification. A practitioner using ICE alone for a “whole-life carbon” claim is making a category-error: ICE provides one slice of the whole-life calculation, not the totality.

7. Methodology — The Literature-Review Approach

The ICE Database is methodologically distinctive in that it does not produce primary lifecycle data — it aggregates published lifecycle data from other sources. The methodology is a structured literature review with documented selection criteria, quality indicators, and aggregation rules. Understanding the methodology is essential for understanding when ICE values are appropriate and when they are not.

7.1 Source Types

ICE draws on five principal source categories:

• EN 15804+A2 compliant EPDs. The primary source category for v3.0 onwards, reflecting the operative shift in the embodied carbon literature toward EPD-grounded data.
• Peer-reviewed academic LCAs. Published in journals such as the International Journal of Life Cycle Assessment, Building and Environment, Resources, Conservation and Recycling, and sector-specific journals.
• Industry-body lifecycle data. Sector trade associations (Eurobitume, World Steel Association, the International Aluminium Institute, the European Cement Association CEMBUREAU, and others) publish industry-average lifecycle inventories.
• Government and regulatory data. National inventories where they cover construction-product lifecycle metrics.
• Specialist commercial LCA databases. Cross-referenced where access permits, primarily as validation checks against the ICE aggregation.

7.2 Selection Criteria

The original ICE methodology (Hammond & Jones, 2008) established a five-criteria selection framework that has been refined across subsequent versions. The criteria assess:

• Methodology compatibility. Whether the source study used a methodology compatible with the EN 15804 cradle-to-gate boundary (or could be reconciled to it).
• Data age. Currency of the underlying data, with progressive deprecation of older studies.
• Geographic context. Relevance of the production geography to the operative use case (predominantly UK and Western European production, with international data noted where used).
• Data quality. Documentation quality, transparency of allocation choices, and robustness of underlying activity data.
• Source authority. Standing of the publishing body, peer-review status, EPD programme operator verification.

7.3 Aggregation

Where multiple compatible sources exist for a single material category, ICE reports a mean value across the underlying studies, with the range disclosed in the Advanced version material profiles. The aggregation does not weight individual sources unless documented; the assumption is that selected sources have already passed the selection criteria and are of comparable methodological quality.

7.4 Data Quality Framework

The v3.0 introduction of data quality indicators was a substantive methodology advance over v2.0 and earlier. The framework, expanded in v4.0, applies indicators across source quality, sample size (number of underlying studies), geographic representativeness, temporal currency, and methodological alignment. Users of the Advanced version see these indicators per material; users of the Educational version see the aggregated values with quality context in the documentation.

8. The April 2026 Licensing Reform

In April 2026, Circular Ecology issued an Important ICE Database Announcement that materially changed the licensing structure for non-educational users of the ICE Database. The reform addressed two longstanding tensions: the gap between ICE’s free-resource ethos and the substantial commercial integration that had developed (over 750 organisations registered for commercial use in v4.0’s first 60 days alone), and the funding-model question of how to sustain ICE Database maintenance as the dataset’s complexity and the data-quality framework expanded.

The reform introduced four explicit licence tiers, replacing the prior simple Educational-and-Advanced two-tier model:

8.1 Machine-Readable Format Now a Paid Product

Prior to the April 2026 reform, the Machine-Readable format of the ICE Database was packaged alongside the Advanced version download. As of the April 2026 announcement, the Machine-Readable format is available separately from the Circular Ecology online store as a paid product. Purchase of the Machine-Readable format does not, in itself, grant a licence to use the data — users must still hold a valid Educational, Advanced, Individual, or Tools & Integration Licence appropriate to their use case. Proceeds from sales of the Machine-Readable format are reinvested into maintaining and developing the ICE Database, formalising a sustainable funding model for the database’s continued evolution.

8.2 Licence Validity & Renewal

The April 2026 reform also clarified validity rules:

• Licence validity: All licences issued before or under the reform are valid until 30 June 2026, at which point re-registration is required for all non-educational users to transition into the standard 12-month renewal cycle. Re-registration remains free.
• Data validity for non-educational use: ICE Database data is valid for non-educational use for up to three years from the date of release of the version being cited. After three years, the version reverts to Educational-only status for new uses (existing project assessments completed within the validity window are unaffected).
• Attribution requirement: All users (educational and commercial) must give full attribution to the ICE Database and its authors (Circular Ecology Ltd) in publications, reports, and tool documentation. A link to the official ICE Database landing page must be included.

9. Material Reference Table — Indicator Values

The table below shows representative cradle-to-gate (A1–A3) embodied carbon indicator values from ICE v4.1 for widely-specified construction materials. These are illustrative typical values intended for educational and methodology-illustration purposes; the operative dataset at Circular Ecology contains substantially more material categories, sub-categories, and detailed material profiles with full source attribution.

For procurement decisions, compliance submissions, or any project-specific application, the full live ICE Database under the appropriate licence tier is the operative reference. The figures shown here should not be embedded into commercial tools without an active Tools & Integration Licence.

Important. The values shown are illustrative typical mean cradle-to-gate (A1–A3) embodied carbon coefficients from ICE v4.1, reproduced here for methodology-illustration and educational purposes consistent with attribution requirements. The operative ICE Database at Circular Ecology contains substantially more materials, sub-categories, full ranges, source attributions, and the data quality framework. For any commercial application, project assessment, or tools integration, the live ICE Database under the appropriate licence is the operative source. Citation: ICE Database v4.1, Circular Ecology Ltd, October 2025. Embedding any portion of this table or the underlying ICE data into a tool or commercial database requires an active Tools & Integration Licence.

10. Comparative Embodied Carbon Intensity

The visual below shows the relative cradle-to-gate embodied carbon intensity (kg CO₂e per kg of material) for widely-specified construction materials, drawn from the indicator values in §9. The spread — from less than 0.1 kg CO₂e/kg for some concrete blocks and asphalts to more than 13 kg CO₂e/kg for primary aluminium — is what drives material-substitution decisions in low-carbon design.

The visual makes immediately apparent two of the dominant design levers in low-carbon building practice: route-of-production within a single material category (secondary aluminium is about 4% of primary aluminium’s intensity; secondary steel is roughly one-fifth of primary steel) and material substitution across categories (a structural-timber frame at ~0.3–0.5 kg CO₂e/kg for the structural members carries dramatically lower embodied carbon than the same structural function in steel or concrete, before accounting for biogenic carbon storage which is reported separately per EN 15804+A2).

11. The ICE Concrete & Cement Tool

Concrete is the single highest-volume construction material on the planet and the embodied carbon hot-spot in most building projects. Recognising that generic concrete EC values are insufficient for serious design work, the ICE Database is accompanied by the ICE Concrete & Cement Tool — a structured calculator that allows users to compute embodied carbon for specific concrete mix designs based on cement type, supplementary cementitious material (SCM) content, and other mix parameters.

The tool supports four principal cement composition decisions:

• Cement type (CEM I to CEM V). The EN 197-1 cement classification ranging from CEM I (Portland, 95–100% clinker) through CEM II (76–94% clinker), CEM III (35–64% clinker, high-GGBS), CEM IV (45–89% clinker, high-pozzolan), and CEM V (40–64% clinker, composite).
• GGBS substitution rate. Ground Granulated Blast-Furnace Slag is the most common SCM in UK and European concrete practice. In v4.1, GGBS is treated under economic allocation, aligning with EN 15804 consensus and raising the calculated EC of GGBS-blended concretes relative to v4.0 values.
• Fly ash substitution rate. Pulverised fuel ash from coal power generation, used as an SCM particularly in mass concrete applications. Availability is declining with coal phase-out across European power generation.
• Limestone fines substitution rate. Limestone Portland cement (CEM II/A-LL) is increasingly specified for lower-strength applications where it offers EC reduction with maintained performance.

The tool was updated in v4.1 alongside the GGBS allocation reform. Any existing concrete embodied carbon calculations using v4.0 or earlier tool versions for mixes containing GGBS should be recalculated under v4.1 to reflect the updated allocation methodology — the change can be material for high-GGBS mixes (CEM III/A and III/B), with calculated EC rising compared to v4.0.

12. Interaction with EN 15804 EPDs

GreenCalculus uses ICE-style cradle-to-gate intensities as fallback factors across its element embodied-carbon methodologies — concrete and cement, steel and aluminium, timber and bio-based materials, masonry and finishes, the building envelope, and plastics and packaging — pending product-specific EN 15804 EPDs.

EN 15804+A2 is the European standard governing Environmental Product Declarations for construction products. An EPD is a verified, product-specific environmental performance declaration covering a defined set of impact categories (climate change, ozone depletion, eutrophication, acidification, resource depletion, and others) over a defined set of life-cycle modules. The relationship between EN 15804 EPDs and the ICE Database is one of complementarity within a data hierarchy.

12.1 When to Use Project-Specific EPDs

Project-specific EPDs are the operationally preferred data source whenever:

• The material is specified and procurable from a defined manufacturer.
• The project is at procurement or construction stage (rather than feasibility or early design).
• The downstream framework explicitly requires product-specific data (BREEAM Mat 01 at higher credit levels; certain CSRD ESRS E1 contexts).
• The carbon performance claim being made depends on a specific manufacturer’s published value.

12.2 When ICE Is the Appropriate Source

ICE values are the operationally appropriate source when:

• The project is at early concept, feasibility, or option-comparison stage where specific manufacturers are not yet selected.
• Scenario analysis or sensitivity testing is being performed across material options.
• The downstream framework permits generic data (RICS WLCA 2nd edition explicitly permits generic data within its hierarchy when project-specific EPDs cannot be obtained).
• The material category is one where EPDs are not yet widely available (less common in commodity materials; more common in specialist products).
• A benchmark or industry-average comparison is being made rather than a specific product claim.

12.3 Why ICE and EPD Values Differ

ICE values are aggregated mean values across multiple underlying studies; EPD values are product-specific declarations for a single manufacturer’s product. The two will differ — often substantially — for legitimate reasons:

• Production-specific factors: An individual manufacturer’s plant efficiency, energy mix, raw material sourcing, and process technology may differ substantially from the industry average that ICE aggregates.
• Allocation choices: EPDs apply specific allocation rules (mass, economic, system expansion) under the relevant PCR; the ICE aggregation may reflect a different mix of underlying allocation choices.
• Geographic context: EPDs reflect the production geography of the declared product; ICE values reflect a UK and Western European weighted average.
• Data vintage: EPDs are typically valid for five years; ICE values aggregate sources of varying age within version-specific bounds.

Neither value is “more correct” in an absolute sense — they answer different questions. The EPD answers “what is the embodied carbon of this specific product?” The ICE value answers “what is the typical embodied carbon for this material category across the literature?”

13. Interaction with BS EN 15978 Whole-Life Carbon for Buildings

BS EN 15978 is the European standard governing the assessment of the environmental performance of buildings using a calculation method, covering all life-cycle modules A1 through D. It is the framework standard that brings together product-level EPDs (under EN 15804) into building-level whole-life carbon assessment. The ICE Database fills the A1–A3 portion of an EN 15978 building assessment for materials where project-specific EPDs are unavailable; the remaining modules require separate data and methodology.

A typical EN 15978 whole-life carbon assessment for a building requires:

The implication for whole-life carbon practitioners is that ICE alone is insufficient for an EN 15978 assessment. ICE fills the A1–A3 slice, which is typically 50–70% of total embodied carbon for a new-build commercial or residential project (the proportion varies substantially by building type and design life), but the remaining modules require their own data sources and methodology. See BS EN 15978 reference for the full whole-life carbon framework.

14. Interaction with RICS Whole Life Carbon Assessment 2nd Edition

The Royal Institution of Chartered Surveyors (RICS) Whole Life Carbon Assessment for the Built Environment Professional Statement 2nd edition was published in November 2023 and came into effect for assessments commenced from 1 July 2024 onwards. It is the operative UK methodology standard for whole-life carbon assessment, mandatory for RICS members performing such work and the most widely-cited UK methodology framework underpinning low-carbon building practice, net-zero design strategies, and Greater London Authority planning compliance.

The RICS WLCA 2nd edition methodology establishes a data hierarchy for embodied carbon assessment that explicitly accommodates ICE Database values within a structured fallback:

1. Tier 1 (Most preferred): Manufacturer-specific EN 15804+A2 EPDs verified by an EPD programme operator.
2. Tier 2: Industry-average EPDs or sector-association published lifecycle data.
3. Tier 3: Generic data from authoritative third-party databases — the ICE Database is the dominant Tier 3 source in UK practice.
4. Tier 4 (Least preferred): Proxy data, spend-based estimates, or expert judgement.

The RICS WLCA 2nd edition encourages practitioners to use the highest-tier data available for each material category, with explicit disclosure of the data tier used per material in the assessment documentation. ICE values are operationally appropriate where Tiers 1 and 2 are unavailable for a given material category — which is common in feasibility-stage assessment, in sub-component-specific calculations where manufacturers are not yet selected, and in materials where EPD coverage is sparse. The dedicated reference for the RICS methodology is forthcoming on GreenCalculus; in the meantime, the BS EN 15978 framework reference covers the operative module structure that RICS adopts.

15. Interaction with BREEAM Mat 01 LCA Credits

BREEAM (Building Research Establishment Environmental Assessment Method) is the dominant UK sustainability rating scheme for non-domestic buildings, with Mat 01 (Environmental Impact of Materials) being the credit category covering material-level environmental performance through life cycle assessment. The scheme awards Mat 01 credits based on the quality and completeness of LCA data used in the building’s design, with progressively higher credit levels requiring progressively higher-quality data.

ICE Database values support Mat 01 evidence at the lower credit tiers, where generic-data LCAs are accepted as evidence of low embodied environmental impact. The higher credit tiers require manufacturer-specific EPDs and product-specific calculations — ICE alone does not unlock those tiers. The operative interaction:

• Lower Mat 01 credit tiers may be supported by an LCA performed using generic data including ICE values, demonstrating that material specification choices have been informed by lifecycle considerations.
• Higher Mat 01 credit tiers require manufacturer-specific EPDs for the principal building elements, with ICE values only supporting elements where EPDs are unavailable.
• Documentation requirements: Where ICE values are used, the version (v4.1) and data quality context should be explicitly cited in the Mat 01 evidence file.

16. How ICE Plugs Into Corporate Scope 3 Inventory

For corporate sustainability functions reporting under the GHG Protocol Corporate Standard, CSRD ESRS E1, or IFRS S2, the ICE Database provides operationally important inputs to two specific Scope 3 categories: Category 1 (Purchased Goods and Services) and Category 2 (Capital Goods). The interaction is governed by the GHG Protocol Scope 3 Standard’s data hierarchy and by the operative sustainability disclosure framework’s data quality expectations.

16.1 Scope 3 Category 1 — Purchased Goods and Services

For contractors, developers, and any organisation procuring construction materials as part of operational activity, ICE provides the cradle-to-gate embodied carbon coefficient that multiplies against procurement volumes to produce the Category 1 emissions figure for construction material spend. The data hierarchy parallels the RICS WLCA tiers:

1. Supplier-specific data (the supplier’s own EPDs or product carbon footprints) — preferred where available.
2. Industry-average data from sector associations.
3. Generic data from authoritative third-party databases — ICE is the dominant UK and European source for construction-material Scope 3 Category 1.
4. Spend-based estimates using sector-average emission factors per dollar of spend — the least preferred fallback.

16.2 Scope 3 Category 2 — Capital Goods

For organisations whose own owned buildings or infrastructure constitute capital assets, the embodied carbon in materials used in those owned developments flows through Scope 3 Category 2. ICE values support the cradle-to-gate component (A1–A3) of the capital goods carbon footprint, supplemented by transport, installation, and end-of-life data where the operator’s accounting boundary includes those modules.

16.3 Disclosure framework alignment

Under CSRD ESRS E1, the gross Scope 3 disclosure (paragraph 49) includes material upstream categories. For organisations in real-estate, construction, infrastructure, or manufacturing sectors with significant construction material throughput, Category 1 and Category 2 are typically material and warrant explicit methodology disclosure — including the data sources used, the data quality tier, and any version-specific updates. ICE v4.1 should be the cited version for Scope 3 inventories prepared in 2026, with explicit acknowledgement of the GGBS allocation reform where cement and concrete contribute materially. See CSRD ESRS E1 reference and GHG Protocol Scope 3 Standard reference.

17. Common Misuses of ICE Data

Ten patterns of ICE Database misuse that surface routinely in technical assurance, BREEAM review, RICS WLCA peer review, and CSRD ESRS E1 limited assurance findings:

18. GreenCalculus Implementation Status

GreenCalculus’s calculator stack and MasterBrain data layer currently focus on operational and use-phase emission factors — the IEA grid emission factors for Scope 2 location-based reporting, DEFRA factors for UK Scope 1/2/3 operational reporting, EPA eGRID subregion factors for US Scope 2, IPCC AR6 GWP values for cross-gas conversion, and related factor sets at Layers 1 through 5 of the stack architecture.

ICE Database integration is planned for MasterBrain v2025.8, pending Tools & Integration Licence registration with Circular Ecology and completion of the embedded-data attribution architecture required under that licence tier. The implementation roadmap:

Until MasterBrain v2025.8, GreenCalculus does not surface ICE values via [gc_*] shortcodes or programmatic API. The material indicator values shown in §9 of this page are reproduced under educational/illustration use for methodology-reference purposes only and are not exposed to calculator output.

19. Limitations and Uncertainty

The ICE Database is the most-cited free embodied carbon reference, but it has known limitations that practitioners should be transparent about in methodology statements:

• Literature-review variability. Each ICE value aggregates multiple original studies that were themselves conducted under varying boundary assumptions, methodological choices, and data vintages. The aggregated mean is a useful generic indicator but does not represent a single defensible specific value.
• UK and Western European bias. The underlying literature is predominantly UK and European, with some international coverage. For materials produced in regions with substantially different grid mixes or production technologies (notably China, India, and other non-OECD countries), the ICE value may materially understate or overstate the actual embodied carbon.
• Data age. Some entries retain data from earlier versions (notably v2.0-era data from January 2011) flagged for retirement. The aggregated mean may be lagged relative to current production practice.
• Sectoral coverage gaps. Coverage of specialist materials (advanced composites, novel low-carbon cements, regenerative-design materials) is less comprehensive than for commodity construction materials. For specialist materials, manufacturer-issued EPDs are typically the only operationally appropriate source.
• No subnational granularity. ICE values are national-level (UK) or international-average aggregates. Subnational variation driven by regional electricity mixes, raw-material sourcing patterns, or local regulatory factors is not captured.
• Module D limitations. Module D coverage is available for metals where compatible data exists in the underlying literature, but is not systematic across all materials. For non-metals, Module D requires separate calculation.
• Biogenic carbon treatment. EN 15804+A2 requires biogenic carbon to be reported separately from fossil carbon. The ICE timber values report fossil-equivalent EC; biogenic carbon storage is a separate consideration that requires specific accounting under EN 15804+A2 Annex B.

20. Future Evolution

Four trajectories will shape the ICE Database through the late 2020s:

v4.2 and beyond. Circular Ecology has signalled forthcoming releases continuing the data-quality framework expansion and the v2.0 legacy data retirement. The Scaling Carbon Reduction Initiative (SCRI), funded in part by Machine-Readable format sales under the April 2026 licensing reform, is the operative funding model supporting continued development.

Data partnership programme. Circular Ecology has opened a structured route for organisations holding lifecycle data, sector benchmarks, research studies, or non-standard datasets to contribute to ICE through the ICE Data Providers programme. Bulk data contribution and partnership integration is the route by which the underlying dataset breadth expands in v4.2+.

BIM integration. The Innovate UK Net Zero Flow project (2021–2024) established the link between ICE and BIM workflows, with continued development expected as IFC-based building information modelling standards mature and as RICS WLCA 2nd edition uptake drives demand for tighter tool integration.

EN 15804 methodology alignment. Future ICE versions will continue tracking EN 15804 methodology evolution, including future PCR updates, allocation methodology refinements (the v4.1 GGBS reform being a notable example), and any future European-level harmonisation of cradle-to-gate accounting practice. The relationship between ICE and EPDs is bidirectional — ICE depends on the EPD literature for its source data, and the EPD ecosystem cites ICE for context and comparison.

21. Frequently Asked Questions

Related GreenCalculus References