The UK government has published a new independent review of the UK’s proposed third runway at Heathrow Airport and the figures have ignited strong debate. The government’s economic boost from this huge project may turn out to be significantly less than had been suggested, the Department for Transport said.

The Massive Gap in GDP Forecasts

So far, Heathrow management has guaranteed a rise in GDP, or national wealth, for the UK of 0.5% due to the expansion. But the government’s official analysis is calmer. Its official estimate of benefits to the public exceeds £40 billion, but its estimate of GDP gain after the workers have completed the project is just 0.03%-0.05%.

Chief executive of Heathrow airport Thomas Woldbye strongly backs the expansion. He says the UK will never achieve its economic potential with a smaller hub. According to the airport officials the government’s calculation is too limited. 

They argue it ignores a number of key issues, such as the increased volume transported by cargo airlines and the fact that current capacity is very costly. But Emirates president Tim Clark agrees, suggesting expansion could immediately increase capacity by 50% for passengers.

Political and Industry Divisions Grow

This new data has energized critics who want to stop the runway. New Economics Foundation’s Alex Chapman notes that the social costs are increasing, while the economic gains are decreasing.

Trade unions such as GMB and Community also have a strong support for the scheme since it will generate tens of thousands of jobs on the other hand. Heathrow currently handles about a quarter of all UK goods trade, which is worth roughly £300 billion every year. Advocates stress the new runway would expand this critical cargo volume by 50%.

There is also increased tension among politicians. Chancellor Rachel Reeves launched the idea to boost the country’s growth recently. However, prominent politicians like Andy Burnham have openly questioned the plan, arguing that economic growth should spread across the entire UK instead of focusing solely on London.