Surrey Climate Commission Opposes Heathrow Expansion

The Surrey Climate Commission has formally opposed the proposals for Heathrow expansion, citing serious climate, environmental, social and economic concerns.

At a time when the UK should be on a pathway to eliminate greenhouse gas emissions, the Commission argues that expansion would do the opposite, deepening the climate breakdown already being felt. Aeroplane contrails and non-CO2 emissions add further to this impact. The Commission also points to harmful effects on nature, air quality and noise, noting that UK legal air-quality limits remain weaker than current WHO guidelines, and that additional flights and surface traffic would only increase pollution pressure.

The human cost is significant too: the project requires the compulsory purchase of around 750–800 homes, and the Commission argues that financial compensation cannot address the physical loss involved. Surface access plans would also generate additional car trips and add crowding to already busy London rail and underground lines, with Heathrow's £49 billion cost estimate excluding the public transport upgrades this would require.

The economic case is weaker than often claimed. Official impact assessments published alongside the Draft Heathrow Expansion National Policy Statement put the national economic boost at just 0.03–0.05% of GDP by 2056, a tenth of previous industry estimates, while the government's own cost-benefit analysis finds a negative net present value of between -£23.4 billion and -£62.5 billion over 60 years. Analysis by the New Economics Foundation suggests any growth would be concentrated in London and the South East, displacing around 15,200 aviation jobs from regional UK hubs by 2050 rather than creating new employment. The Commission also highlights that Heathrow's holding company is owned by a consortium of overseas investors, meaning profits and dividends can leave the UK entirely.

The Commission urges decision-makers to reject the expansion proposals in favour of investment that supports genuine climate action and regional economic resilience.

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