Boris backs expansion of Stansted over Heathrow

The mayor of London Boris Johnson has said it would be 'nuts' to build a third runway at Heathrow. He has previously said expanding Stansted is a better option.

Mr Johnson signed a giant petition against the third runway this afternoon Credit: PA wire

Mr Johnson was speaking at a cross-party rally held in Barnes against Heathrow's third runway.

The mayor has said he favours a new "Boris island" airport in the Thames Estuary or possible expansion at Stansted.