The Government has confirmed it has chosen to build a third runway at Heathrow Airport as its preferred airport expansion project.
The Department for Transport announced the £17.6 billion project after a Cabinet meeting of the airport sub-committee chaired by Prime Minister Theresa May.
The other shortlisted options - to extend an existing runway at Heathrow or build a second runway at Gatwick - were rejected in favour of a decision that will see more than 780 homes demolished in west London.
Fierce opponents of Heathrow expansion within Cabinet, Foreign Secretary Boris Johnson and Education Secretary Justine Greening, will both speak out at the decision after being cleared by Mrs May to air their dissent.
The Government announcement ends more than a year of uncertainty since the Davies Commission came out in favour of Heathrow's third runway.
A public consultation will be held on the impact of the expansion before the final decision is put to MPs for a vote in the winter of 2017/18, with the runway unlikely to be in use before 2025.
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.