Tag

Scope 3

Every clca article tagged “Scope 3” — 8 technical pieces covering the topic from methodology, standards interpretation and practical application angles.

8 articles

2026-06-2410 min read

Turning EPD data into a Scope 3 inventory

The EPDs you hold are the best data source for a corporate inventory — if you map the right modules to the right categories. Practical mapping rules.

2026-06-2211 min read

Collecting carbon data from the supply chain: running a programme that works

Sending a questionnaire is not collecting data. Segmentation, staged requests, template discipline and building supplier capability.

2026-06-2010 min read

SBTi targets and LCA: the data side of a science-based target

Setting a science-based target rests on a solid base year inventory. Absolute reduction, intensity targets and the Scope 3 coverage rule.

2026-06-1912 min read

CSRD and ESRS E1: the data requirements of climate reporting

ESRS E1 defines what climate data must be reported and in what detail. Double materiality, transition plans and the Scope 3 requirement.

2026-06-1612 min read

Scope 3 Category 1: moving from spend-based to material-based

Purchased goods and services is most companies’ largest emission line — and usually their worst-measured one. A staged method for raising data quality.

2026-06-1512 min read

GHG Protocol Scope 1, 2 and 3: drawing the boundaries correctly

The three scopes answer different questions. Organisational boundary choices, control approaches and what Scope 3’s fifteen categories mean in practice.

2026-05-0710 min readFundamentals

What is a carbon footprint? Product, organisation and personal

One term covers three different things, and confusing them breaks the arithmetic. The boundaries and units of product, corporate and personal footprints.

2026-04-2811 min readFundamentals

How is a carbon footprint calculated? Step by step

The calculation itself is a multiplication. The hard part is deciding what to multiply, and making the number defensible.

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