Embodied Carbon Footprint

The embodied carbon footprint, also called embodied or embedded carbon, is the sum of all greenhouse gas (GHG) emissions generated during the extraction of raw materials, manufacturing and distribution of a product up to the factory gate (a cradle-to-gate boundary). It does not include emissions from the use phase or end-of-life, which is what distinguishes it from a full cradle-to-grave carbon footprint.

It is a central concept in the decarbonisation of materials-intensive sectors such as construction, where a large and growing share of a building's lifetime emissions is locked in before it is ever occupied, particularly in steel, cement and glass.

Why it matters

• Buildings and infrastructure: as operational energy is decarbonised, embodied carbon becomes a larger proportion of whole-life emissions. It is assessed under standards such as EN 15978 (assessment of the environmental performance of buildings) and reported through Environmental Product Declarations (EPD).
• Consumer products: for many manufactured goods, including electronics, the majority of the carbon footprint is incurred during manufacturing, before the product is first used.

How is it calculated?

Embodied carbon is quantified using life cycle assessment (LCA) methods:

1. Define the functional unit: for example one square metre of panel or one tonne of steel.
2. Set the system boundary: cradle-to-gate or cradle-to-site.
3. Build the life cycle inventory (LCI): collect data on energy, materials and transport, using databases such as ecoinvent or ICE.
4. Apply emission factors and characterisation using global warming potentials (IPCC values) to obtain kg CO₂e.
5. Verify: against ISO 14067 for products, or EN 15804 for construction EPDs.

How to reduce it

• Low-carbon materials: lower-clinker cements and recycled-content (electric arc furnace) steel.
• Renewable process energy: electrification of heat and use of low-carbon electricity.
• Design optimisation: structural lightweighting, material efficiency and prefabrication.
• Circular economy: reuse of materials, design for disassembly and life extension.

Regulatory framework and standards

• ESPR: the EU Ecodesign for Sustainable Products Regulation will require environmental information, including carbon and recycled content, for priority product groups via the Digital Product Passport.
• CBAM: the EU Carbon Border Adjustment Mechanism prices the embedded emissions of imported goods such as steel, cement and aluminium, in its definitive regime from 2026.
• Green building certifications: schemes such as LEED and BREEAM award credits for reducing embodied carbon against a reference design.

Related concepts

• Embodied carbon and whole-life carbon in the built environment.
• Use-phase carbon footprint and end-of-life carbon footprint complete the full emissions profile.
• Product carbon footprint (PCF) as the broader product-level measure.

Addressing embodied carbon is now a core pillar of industrial and construction decarbonisation. At Manglai we help companies measure their carbon footprint and prepare their sustainability reporting. Discover how Manglai can help you.