Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Aerospace
  • /
  • London City Airport reaches Transition Level 4+ Airport Carbon Accreditation

Aerospace

London City Airport reaches Transition Level 4+ Airport Carbon Accreditation

As COP27 continues in Sharm El Sheikh, ACI has today announced the latest developments in its Airport Carbon Accreditation programme, highlighting the advances made by the global airport community to address the climate emergency, with London City Airport upgraded to Transition Level 4+.

Image courtesy London City Airport

Against the background of climate impact worsening, and the window of a +1.5°C world rapidly closing, the focus is more than ever on moving from commitment to concrete and tangible action. The airport industry has been working tirelessly to reduce its carbon emissions through Airport Carbon Accreditation since 2009 – delivering concrete reductions of emissions under their direct control year after year, as well as engaging with their business partners to foster carbon reductions by third parties active within their premises.

Advertisement
ODU RT

In 2020, noting the increased need for deeper carbon cuts and in step with the rising ambition of airports around the world expressed in the industry’s commitments to Net Zero by 2050, ACI launched the first major, structural change to the programme since its inception: two new accreditation levels - Level 4 Transformation and Level 4+ Transition crucially linking airports’ climate efforts with the objectives of the Paris Agreement.

The introduction of these two new levels marked a shift in the ambition level of the programme, by setting out further obligations for accredited airports to formulate a long-term climate objective in line with the 1.5°C or 2°C pathways outlined by the IPCC and defining a concrete plan to achieve it, including interim milestones to measure progress and take stock of the realised CO2 curbs.

The two new levels have also gone beyond focusing on absolute emissions reductions of Scope 1 and 2 emissions by requiring airports to map carbon emissions from an extended number of sources and establish formal partnerships with companies active at their sites to guide and help them in decarbonising.

Since the launch of the two new levels, 43 airports around the world, including major hubs and regional airports alike, have already embraced their ambition. A total of 20 airports have achieved Transformation (Level 4) and 23 airports upgraded to Transition (Level 4+).

Today, another five airports have met all the stringent requirements to receive these accolades. Level 4+ was achieved by London City (United Kingdom) and Lyon (France) airports, while San Francisco International (United States), Marseille Provence (France) and Zurich (Switzerland) airports secured Level 4.

Airports’ extensive climate efforts within the Airport Carbon Accreditation programme have been applauded by the United Nations Framework Convention on Climate Change (UNFCCC).

Niclas Svenningsen, UNFCCC Manager, Outreach said: “To achieve the deep transformation needed for sustainable development and stabilisation of global temperature, we must require commitments and participation from all sectors and levels of society. I commend airports for their continued efforts to map and reduce their CO2 emissions year by year, as well as to engage their business partners in this endeavour.

"The Airport Carbon Accreditation programme is evolving in step with the level of urgency to act now for our climate. Having introduced two new more ambitious levels aligned with the ambition of the Paris Agreement and seeing almost 50 major airports around the world embracing them, airports are sending a strong signal to other parts of the economy to follow with ambitious climate action today.”

Advertisement
ODU RT

 


 

 

 

Advertisement
Hexagon leaderboard
Muirhead Avionics appointed ARC for selected IA products

Aerospace

Muirhead Avionics appointed ARC for selected IA products

19 May 2026

AMETEK MRO's Muirhead Avionics, announced today that it has entered into a long term agreement with Innovative Aerosystems (IA) to become an Authorised Repair Centre (ARC) for selected legacy avionics products formerly developed under Honeywell product lines and now fully supported by IA.

Intelligent Energy joins UK alliance to accelerate hydrogen flight

Aerospace

Intelligent Energy joins UK alliance to accelerate hydrogen flight

19 May 2026

Intelligent Energy (IE) has joined the Hydrogen in Aviation Alliance, alongside leading UK aerospace and UK hydrogen fuel cell manufacturer, Intelligent Energy (IE), has joined the Hydrogen in Aviation Alliance (HIA),which brings together companies from across aerospace, including Airbus, Bristol Airport, easyJet, GKN Aerospace and ...

Hexagon releases NCSIMUL upgrade

Aerospace Defence

Hexagon releases NCSIMUL upgrade

19 May 2026

Hexagon’s Production Software Division has announced the latest release of NCSIMUL, strengthening its integrated approach to NC programme verification, simulation and optimisation with a new Selective Simulation capability.

ATI launches tech strategy to double value of UK aerospace

Aerospace

ATI launches tech strategy to double value of UK aerospace

19 May 2026

The Aerospace Technology Institute (ATI) has today launched the latest UK technology strategy targeting a generational prize of doubling the UK aerospace sector's market value to $18 billion (£13.44bn) by 2035 and increasing by over four times, to $41 billion (£30.6bn), by 2050.

Advertisement
ODU RT
Aviation operational gains offset by industry growth

Aerospace

Aviation operational gains offset by industry growth

18 May 2026

Analysis from aviation intelligence company IBA, has found that global aviation carbon intensity improved from 860 gCO₂ per revenue tonne-kilometre (RTK) in 2018 to 690 gCO₂/RTK by September 2025 - an efficiency improvement of 20% - but that flight activity growth is offsetting those operational gains.

Egis appoints Shakir Khaja to drive UK and Ireland airport growth

Aerospace

Egis appoints Shakir Khaja to drive UK and Ireland airport growth

18 May 2026

Architecture, engineering and consulting firm Egis has appointed Shakir Khaja as Aviation Sector Director for Europe and Africa, to oversee the firm’s expansion across the airport sector, with a strategic focus on the UK, Ireland and wider European market.

Advertisement
ODU RT
Advertisement
General Atomics LB