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Update on disclosed documents for AC-2025-LON-003837

23 February 2026

Proposing MP
Swindon South
Type
Written Ministerial Statement
Department
Department for Transport

At a Glance

Issue Summary

Heidi Alexander provides an update on the disclosure of documents related to greenhouse gas emissions forecasts in aviation.

Action Requested

The minister has apologised for a small error in the disclosed data and submitted a statement explaining the correction. Enhanced quality assurance procedures are being implemented to prevent future errors.

Key Facts

  • On 12 December 2025, documents were approved for disclosure related to aviation greenhouse gas emissions forecasts.
  • The disclosed information was not relevant to the decision on Gatwick Airport expansion.
  • An error in the data affected annual total aviation emission figures by an increase of 4.1 MtCO2e over a 5-year period.
  • DESNZ confirmed that the error represents 0.5% of required additional carbon savings from baseline projections for Carbon Budget 6.
Assessment & feedback
Summary accuracy