The Guardian view on Heathrow expansion: better never than so late | Editorial

A third runway at Heathrow airport is ultimately indefensible on environmental groundsThe decision to go ahead with the third runway at Heathrow was taken two years ago; Chris Grayling’s confirmation yesterday marked the point when it seemed to its promoters that enough of the opposition on the ground had been defeated, so it was safe to proceed with a final vote in three weeks’ time. If that is won, and all goes according to plan, the bulldozers will go in around 2021, when the inev