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FIELD GUIDE

How to read a sustainability report without getting lost

Start with the reporting period, boundary, material topics and content index. Then test one important claim all the way back to its evidence.

G3 reporting desk · Updated 27 October 2026Sources & editorial approach

Read the frame before the headline

Check who is reporting and when. Identify whether the report covers a whole group, selected operations or one program. A publication date is not necessarily the end of its reporting period. Look for changes to the scope or comparative figures.

Find the statement describing the reporting basis. “In accordance”, “with reference”, a reference to historical G3 and a general statement about sustainability are not interchangeable descriptions. Follow the relevant standard named in the report.

Choose one claim and follow it

  1. Find the disclosure or table behind the headline.
  2. Check the unit, period, boundary and denominator.
  3. Look for the calculation method, limitations and comparative information.
  4. Read the management explanation: what action was taken, what changed and what remains unresolved?

If the trail ends at another unsupported statement, record a question. Lack of detail is a reason to investigate; it is not by itself proof of misconduct.

Compare like with like

Two organizations can report the same metric label with different boundaries, units or calculation methods. Before comparing them, list those differences. Keep absolute figures separate from intensity figures and outcomes separate from activities.

For example, training hours describe an activity. They do not by themselves establish that a workplace problem was resolved. Look for the stated purpose, people covered and evidence of what changed.

Turn the reading into useful questions

Ask “which locations are missing?”, “why did the base year change?” or “what evidence supports this result?” rather than simply asking whether a report is good. Keep the page reference and exact subject of each question.

Our content-index builder can also serve as a reading log: one row for the disclosure, one location and one evidence note. Keep your observations separate from the organization’s own claims.