Business Green: Stansted operator BAA has confirmed that plans for a second runway at the airport will be delayed for the fourth time after a drop in consumer demand for flights. But the company insisted that Britain’s third largest airport would still open a new runway in 2017 if it secures planning permission at a public inquiry due to start in April. The extra runway would allow annual passenger numbers at the airport to increase from 22.3 million to 35 million. But the airport has …