Two of the big stories this week have been the proposed third runway at Heathrow and the incredible emergency landing of a stricken jet on the Hudson river in New York.
We need more landing space for travellers to London but we don't want extra noise and pollution over West London, so why not simply have planes land in the North Sea? It's such a brilliant idea that I just can't see the downside. Ok taking off will be difficult.
Update: Umbomgo in the comments points out that Howard Hughes had this idea 60 years ago. If that isn't a good enough recommendation then I don't know what is.