Department for Transport analysis suggests 0. 05% boost will be offset by overall negative trade-off The economic boost from a Heathrow third runway could be a tiny fraction of previous estimates, government analysis shows, while the overall trade-off from the bigger airport could set the UK back...
Source: [Guardian World](https://www.theguardian.com/uk-news/2026/jun/19/heathrow-third-runway-boost-gdp-less-than-stated)