The decision to build a third runway at Heathrow will have a "disastrous impact", an environmental campaigner has said.
Ralph Smyth, of the Campaign to Protect Rural England, said: "Building a third runway at Heathrow would in itself take a huge chunk out of the Green Belt, but creating the biggest airport in the world on London's western edge would have an even more disastrous impact.
"Pressure for extra development would be felt in almost every village from the north of Oxfordshire to the south coast, urbanising and industrialising swathes of our most precious countryside."
Tory MPs are taking lumps out of each other on Heathrow, grammar schools and - above all - the true meaning of Brexit.
Environmentalist Goldsmith called the move "catastrophic" - and announced he will now stand as an independent in protest.
The expansion of the London airport will affect the whole of the UK, with more domestic routes, while impacting air fares and house prices.