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Environmental Introduction

We are committed to developing Heathrow responsibly and sustainably, with a focus on the wellbeing of our communities and the environment.

We are carefully considering the effects expansion may have on the environment and local people. We have planned measures to avoid or reduce these effects, or to improve the current environment wherever possible.




Premliminary Environment Information Report (PEIR)

The PEIR is a preliminary environmental impact assessment (EIA) setting out our initial conclusions on the ‘likely significant environmental effects’ of the Project. Our DCO application will be supported by an Environmental Statement, which will report on the completed EIA.

The key aims of the EIA process are to understand current environmental conditions and how they may change in the future as a result of a proposed development. Those changes are assessed based on how “significant” they would be, in both positive and negative terms.

The EIA process also identifies and incorporates environmental measures (often referred to as “mitigation”) to avoid, reduce or offset any significant adverse effects. Identifying opportunities to enhance the environment through environmental design is also important.

Within our Airport Expansion Consultation launched on the 18th of June we have published a Preliminary Environment Information Report (PEIR) which sets our initial conclusions on the ‘likely significant environmental effects’ of our Project.

The full list of environmental topics in the PEIR is as follows:

Sitting alongside the Preliminary Environmental Information Report is a Non-Technical Summary which provides a summary of the full Preliminary Environmental Information Report using less technical language.

Heathrow 2.0 – Our sustainability leadership strategy

We are clear that we must continue to make the airport and its operations cleaner and even more sustainable into the future.

That is why we recently launched Heathrow 2.0 – our plan for sustainable growth for expansion and beyond. It sets out our environmental and community goals, as well as the strategies we are putting in place to achieve them.

As part of this, we will be a better neighbour by delivering against our commitments to meet or exceed the world leading package of mitigation measures recommended by the Airports Commission.

This includes extending the current five-hour night flight ban to six and a half hours and delivering a substantial increase in our noise insulation scheme. Mitigating local air quality impacts is also key. Road vehicles are the principal contributors to poor air quality so reducing journeys by road to the airport is critical.

Heathrow 2.0 supports the mode share targets set out in the NPS and they will be at the heart of our Surface Access plan. Being a better neighbour also means listening, being fair and making sure that local people and businesses have their say and share in the economic benefits.