Position · Diagnose

Decarbonisation and ESG materiality

Names which environmental and social issues are financially material to this business and material about it, then prices a credible path to a target.

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Stage
01 Diagnose
Works at
Corporate, Business
Maturity
Established SME → Large organisation
Time
Two to three weeks

What it is

A two-part diagnostic. Double materiality asks which environmental and social issues are financially material to this business — could genuinely affect its performance — and separately, which issues this business is material about, meaning its activities have a genuine impact on the world regardless of the financial consequence. Both matter, and CSRD requires reporting on both. The second half establishes the emissions baseline and prices what a credible path to a stated target actually costs.

Financial materiality
Which environmental and social issues could genuinely affect this business's financial performance — through cost, regulation, customer demand or access to capital.
Impact materiality
Which issues this business has a genuine effect on, regardless of whether that effect comes back to hit its own financials. The half most businesses skip, and the half CSRD specifically requires.
The double-materiality matrix
Both dimensions scored for every candidate issue, so the result is a short, evidenced list rather than the sustainability topic list every company in the sector reports identically.
Emissions baseline
Scope 1, 2 and — where material — scope 3 emissions, stated with an honest account of what is measured directly and what is estimated. A baseline presented as more precise than the data supports is a liability, not an asset.
Credible pathway
A costed sequence of actions from the baseline to the stated target, with the hardest-to-abate portions named rather than assumed away by a generic industry curve.
Obligation check
Whether CSRD, SECR or an equivalent regime actually applies to this business, and by what date — the regulatory floor beneath whatever ambition sits above it.
The mistake people makeReporting only financial materiality — what affects the business — while skipping impact materiality, which is what CSRD's double-materiality standard specifically requires and what most voluntary reporting quietly omits.
What it’s forCSRD, SECR or an equivalent obligation applies, or a client, investor or lender is asking a sustainability question the business cannot yet answer with evidence.
What it’s not forNo obligation applies and no stakeholder is asking. Sustainability work done for its own sake without a driver behind it tends to produce a report nobody reads and nobody acts on.

How you run it

  1. Establish which obligation actually applies firstCSRD, SECR or an equivalent regime, and by what date. The regulatory floor, established before anything else.
  2. Score financial materiality for candidate issuesWhich issues could genuinely affect performance — cost, regulation, customer demand, access to capital.
  3. Score impact materiality for the same issuesWhich issues this business has a genuine effect on, regardless of the financial consequence. The half most reporting skips.
  4. Build the emissions baseline honestlyScope 1, 2 and material scope 3, with the gaps between measured and estimated data stated rather than smoothed over.
  5. Cost a credible pathway to the stated targetSequenced, priced, with the hardest-to-abate elements named specifically rather than assumed away by a generic industry trajectory.

The prompt

Two ways to run it

Run this tool in your own Claude

The short prompt starts your partner against the library on your disk. The long one carries everything with it and needs nothing installed.

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