The UK Government is expected to give the go-ahead to the development of a third runway at London Heathrow later today, following delays to the announcement due to Cabinet unrest.

A new 200mph rail link between London and Birmingham, with a spur from Heathrow to St Pancras station will also be announced.

The Conservatives and Liberal Democrats have pledged to cancel the expansion of Heathrow if either win the next General Election, however certain legal restrictions may make this costly, necessitating compensation to the airport’s operator, BAA.

Ministers have described the development as ‘green Heathrow‘ and has offered assurances that EU rules on air and noise pollution will not be breached. Concerns have been raised by NGOs, such as Greenpeace, that expansion of the airport will lead to the Government breaching its own stringent targets on greenhouse gas emissions: a reduction of 80% on 1990 levels by 2050.