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Heathrow expansion could spark largest single environmental campaign in British history, MP warns
A ‘Stop Heathrow Expansion’ sign on a lamppost on Holloway Lane leading in to Harmondsworth, west London, one of the villages which would be affected by the expansion of Heathrow Airport, January 21, 2025

EXPANDING Heathrow airport may spark Britain’s biggest-ever single environmental campaign, former shadow chancellor John McDonnell warned today.

The MP for Hayes and Harlington, which contains Heathrow, was commenting as a new expert report rubbished claims that a third runway would deliver economic growth amid reports that the Chancellor is preparing to back the project.

Mr McDonnell said: “Backing a third runway at Heathrow would shred the government’s credibility in one fell swoop and potentially launch the greatest single environmental campaign this country has seen.

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