A document that dismisses air and noise quality as "local issues" and says CO2 emissions have more than doubled since 2000 is the backbone of Spelthorne MPs pro-expansion argument.

David Wilshire has hit out at environmental articles which claim to represent residents near the airport, believing they rarely show concern for Heathrow employees whereas he does.

A 2007 report by accountants Deloitte called The Heathrow Phenomenon found the airport's economic well-being depended more on surrounding infrastructure rather than expanding the airport. Any growth at the airport would have to be met by people either moving into the area, meaning additional housing or more people travelling into Heathrow, increasing traffic congestion.

Expanding the airport would only add to infrastructure failings.

Mr Wilshire said: "It just goes to show how even the great and the good like Delloite fail to understand Heathrow.

"It is not about the creation of new jobs, it's the protection of old ones and, if we don't extend Heathrow, people will lose their jobs."

The Spelthorne MP cites a 2006 report by Oxford Economic Forecasting as well as his own findings as providing legitimacy for airport expansion.

The report says noise and air quality were primarily local issues while its focus was on the national impact of aviation.

It said economic benefits of extra runways were substantial even after the climate change costs of additional emissions.

On climate change it said in 2000 UK aviation was a minor CO2 contributor.

It estimated UK passenger flights produced 30million tonnes of CO2, about five per cent of the UK total.

Between 1995 and 2005 there has been a 216 per cent increase in passenger numbers, or around a 108 per cent increase since 2000 or 62.4million tonnes of CO2 in 2005.

Mr Wilshire said: "One result of my efforts was to tell the Terminal 5 Inquiry inspector it appeared to me that about 75 per cent of my constituents supported the new terminal.

"More recently, I have been consulting on another runway.

"I have distributed over 100,000 questionnaires. The results are remarkably consistent, 52 per cent of respondents support it, 42 per cent oppose it and 6 per cent don't know.

"I have proof that a majority of those who elected me back the Government's proposals."