PARLIAMENTARY WRITTEN QUESTION
(3 September 2026)

To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 15 July 2026 to Question 16609 on Aviation: UK Emissions Trading Scheme, if she will publish the (a) low, (b) central and (c) high scenarios modelled for the impact of UK ETS allowance prices on the cost of domestic flights between 2026 and 2050.

Asked by:
Mr Richard Holden (Conservative)

The Department has not published and has no current plans to publish estimates of the impact of UK Emissions Trading Scheme allowance prices on the cost of UK domestic flights between 2026 and 2050.

As set out in the answer previously provided to the hon. Member, the Department publishes traded carbon values for modelling purposes, which provide scenario-based projections of future carbon prices rather than forecasts. Owing to the uncertainty associated with long-term carbon price projections and emissions, any estimates of future impacts on air fares would be subject to significant uncertainty.

Answered by:
()