Stelios was surprised that the question on global warming did not come until near the end of his question and answer session.
He had two reasonably effective responses:
1. Newer jets use considerably less fuel than the older ones, and easyJet have one of the youngest fleet around. They retire any planes over 20 years old.
2. Because easyJet pack more people into their planes (an average of 80% capacity vs 65% on conventional airlines) due to their low prices and efficient booking system, they consume less fuel per passenger.
His rather tangential answer to the issue of increased flights leading to increased emissions was to ask the audience if they thought that travel was a good thing (in general rather than air travel specifically). Not surpisingly the vast majority of people were in favour.