Air travel is on track to account for almost all our emissions by 2050. So why aren’t we working to reduce demand?

By George Monbiot, published in the Guardian 3rd October 2026

If a third runway is built at Heathrow, what will be the impact on the wealth of the nation? It will cost us somewhere between £23.4bn and £62.5bn. These are not my figures; they weren’t calculated by environmental groups, but by the Department for Transport.

For decades, government ministers have told us tha...