A Battle of the Banners will break out tomorrow as the Supreme Court meets to decide whether to allow Heathrow's expansion plans.

The Friends of the Earth victory in the battle against a third runway will be defended in the Supreme Court tomorrow and Thursday - although the final verdict may not be known until the New Year.

Following the environmental campaigners’ triumph in the Court of Appeal earlier this year, Heathrow Airport Limited has appealed to the Supreme Court in a last-ditch bid to rescue its plan for the runway.

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Environmentalists are expected to be out in force at the court with banners at the ready.

Will Rundle, head of legal at Friends of the Earth, said: “Without the government in the picture, this case has become one about business interests versus the wellbeing of people everywhere facing the impact of the climate crisis."

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Parmjit Dhanda, executive director of Back Heathrow, the community campaign that supports a new runway at Heathrow, will also be outside the Supreme Court.

He will be accompanied by representatives of local residents, businesses and trade unions (adhering to government guidelines and the rule of six) - unveiling their own banner. The banner calls for the creation of a new runway to 'create jobs for the future'.

The Appeal Court ruled against a new runway in February, stating that it did not contain legal commitments on carbon targets set out in the Paris Agreement. All other objections to expansion were not upheld.

Slough Borough Council and the neighbouring Royal Borough (Windsor and Maidenhead Council) have been at odds - with Slough councillors in favour of Heathrow expansion and the Royal Borough teamed up with Wandsworth, Hillingdon, Hammersmith and Fulham councils to fight it.