Conservative MP Zac Goldsmith, who is seeking nomination as the party's candidate for London mayor and has been a vocal opponent of a third runway, said:
It's not going to happen. I don't think anyone believes Heathrow expansion is possible or deliverable politically. There are conditions in this report on air quality and noise pollution that are irreconcilable with Heathrow expansion.
Mr Goldsmith said he would honour his pledge to stand down as an MP and force a by-election in his Richmond Park constituency if a Conservative government gives the green light to the third runway option.
Labour MP John McDonnell, whose Hayes and Harlington constituency includes Heathrow, said:
My community has been absolutely betrayed by David Cameron who said 'No ifs, no buts, no third runway'.
We will fight with every mechanism available, including political lobbying, legal action and where necessary direct action to save our homes and community.
The Davies proposals will result in 4,000 homes being demolished or rendered unlivable by air and noise pollution, including the demolition of schools, community centres and places of worship.
The Davies proposal for a third runway at Heathrow will provoke the biggest environmental campaign the UK and Europe has seen. The fight goes on.
Here are the key statistics in the Airport Commission's proposal for a new runway at Heathrow.Read the full story ›
Business and trade unions appear to have broadly welcomed the prospect of a third runway at Heathrow Airport in West London.
Terry Scuoler, chief executive of EEF, the manufacturers' organisation, said:
Heathrow is a global freight hub and the clear preference for manufacturers with a business need for aviation expansion. Today's recommendation that Heathrow should be allowed to expand is the right one for industry and the country.
Boris Johnson has said that he is "disappointed" with the Airport Commission's recommendations and predicted that a third runway at Heathrow would never be built.
In a tweet the Mayor of London said: "Davies commission pro Heathrow is disappointing - compounds not solves issue - destined for vertical filing as 3rd r/way will never be built."
Davies commission pro Heathrow is disappointing - compounds not solves issue - destined for vertical filing as 3rd r/way will never be built
The recommendation for a new runway at Heathrow Airport sparked fresh debate on the environmental impact of the plan and stirred up further political debate.
Local campaigners and environmental groups vowed to continue their protests against the expansion, as business leaders broadly welcomed the plans.
Green groups attacked the announcement because of the likely impact on the environment.
Greenpeace UK executive director John Sauven said:
A third runway at Heathrow is an environmental and political minefield. It would jeopardise the UK's climate targets, worsen air pollution in London, and open up a political can of worms for David Cameron.
A major counter-terrorism exercise is being carried out in London for a second day to ensure emergency services are prepared.
A mock terrorist firearms attack is being staged in the capital to test the response to a Tunisian-style mass shooting.
Officers, emergency services, soldiers and intelligence officials are taking part in the operation.
Armed gunmen stalked the streets of central London today firing blank bullets as part of a police training exercise.
More than 1,000 police took place in the exercise - where gunmen simulated attacking commuters in the London Underground - and more than 12 other agencies and emergency workers.
Rags Martel reports.
Armed gunmen were seen stalking through the streets of central London today as part of the biggest ever police training exercise for a terrorist attack.
The masked men were seen firing guns in the air and throwing what appeared to be grenade-like devices inside the disused Aldwych station.
Preparations for the exercise began around six months ago and events such as the Charlie Hebdo attack in Paris and the hostage siege in Sydney influenced the test, police said, stressing it was not connected to the Tunisia attacks.
The two-day exercise will see a test of the emergency service response to an attack at the disused Tube station at Aldwych. The vast majority of police officers involved have no idea about the venues or what is planned.
Only around 12 people knew specific details of what was going to happen in advance.
Among those taking part are all of London's emergency services, Greater London Authority, Transport for London, Home Office, Cabinet Office, Ministry of Defence, the Department of Health and NHS England.
Rapid gunfire has been reported around the Strand, where police are in the midst of a major training exercise.
Sitting outside at Ibm southbank - can hear sounds like rapid gun fire across the river near aldwych direction !!
Earlier police said the exercise is to test the response by emergency services to the threat of a "marauding terrorist firearms attack in London."