What should I say when a verifier asks why one month's emissions spike?
Give the operational reason with a record behind it: a big order, a breakdown that ran the diesel generator, a bill covering two months, or a fuel delivery that filled the tank. Then show the figure is right or correct it. A spike with no reason is where verifiers dig deeper.
Usual causes
- Two billing periods in one bill.
- Grid outage and generator use.
- Bulk fuel delivery counted when bought, not burned.
- Higher production that month.
Evidence
Production register, generator log, outage notices or the delivery challan. Note the explanation next to the figure before the audit.
What Senseible does here
Senseible keeps each figure tied to its invoice, factor and method version, so a verifier can trace any number back to the document it came from.
Sources: ISO 14064-3, verification of greenhouse gas statements (iso.org), GHG Protocol Corporate Standard
Last reviewed 2026-10-22.