Climate change

With regard to carbon dioxide emissions, SEA is committed to maintaining the neutrality level achieved through

  • constant and effective process rationalisation
  • use of renewable energy sources
  • purchase of carbon offsets

In 2019, SEA confirmed its European leadership positioning for both Linate and Malpensa airports within the 3+ neutrality grouping, together with 51 other airports, of which 4 are Italian (Naples, Rome, Treviso and Venice), representing 26.2% of European traffic.

The trend of recent years shows a constant and incisive commitment and SEA is committed to maintaining this level of neutrality through the constant effective rationalization of processes, energy saving policies, sustainable mobility and through the purchase of offset.

CO2 emissions

CO2 EMISSIONS of the SEA Group (tons)

(1) It should be noted that Scope 1 emissions in 2018 and 2019 include CO2 emissions from the consumption of methane in Malpensa Terminal 2’s canteen. Note: The “Table of national standard parameters: coefficients used for the inventory of CO2 emissions in the UNFCCC national inventory (average values for years 2016-2018). These data can be used for the calculation of emissions from January 1, 2019 to December 31, 2019” emission factors were used for Scope 1 emissions of 2019, for natural gas and heating oil. In line with previous years, the emission factors of the “GHG Protocol: Transport Tool V2_6” were used for transport diesel and petrol, while urea emissions have been calculated specifically. The reporting standard used (GRI sustainability reporting standards 2016) establishes two different calculation methods for Scope 2 emissions, “Location-based” and “Market-based.” The “location-based” method requires the use of average national emission factors related to the specific energy mix used to produce electricity. The emission factor used for electricity was updated for 2019 [316.4g CO2/kWh. Source: Atmospheric emission factors of CO2 and other greenhouse gases in the electricity sector, ISPRA 280/2019] compared to that used for 2018 [321.3g CO2/kWh. Source: Atmospheric emission factors of CO2 and other greenhouse gases in the electricity sector, ISPRA 280/2018]. The source changed in 2018 and 2019 compared to 2017 [406.309g CO2/kWh. Source: Emission factor for grid electricity @ Airport Carbon Accreditation Guidance Document. Issue 9 v2: August 2015]. For data comparability, it should be noted that, using the ISPRA 280/2018 coefficient, Location-Based Scope 2 emissions were equal to 113 tons of CO2 for Malpensa and 52 tons of CO2 for Linate in 2017. The market-based approach uses emission factors based on the contractual agreement for the provision of electricity. Given the absence of specific electricity agreements between the companies of the Group and the suppliers (e.g. a Guarantee of origin purchase), for this calculation an emission factor related to the national “residual mix” was used, which for Italy in 2019 was 483.33 gCO2/kWh – Source: European Residual Mixes 2018, AIB; in 2018, equal to 476.53g CO2/kWh, Source: European Residual Mixes 2017, AIB; in 2017, equal to 465.11g CO2/kWh, Source: European Residual Mixes 2016, AIB). Also in line with previous years, the emission factors of the “GHG Protocol Transport Tool, V2_6” were used for the Scope 3 emissions relating to employee business and commuter travel. It should be noted that the data used to calculate Scope 3 emissions relating to employee commuter trips have been estimated. Finally, Scope 1, 2 and 3 emissions are expressed in tons of CO2. However, the effect of methane and nitrous oxide on total greenhouse gas emissions (CO2 equivalents) is negligible, as stated in the related technical literature.

Source: SEA


In June 2019, SEA committed to the “NetZero2050” resolution promoted by ACI Europe, which requires its 500 members to reach “net zero” CO2 emissions by 2050.

This commitment is accompanied by a need for the aviation sector to develop a shared long-term goal and vision towards achieving zero carbon emissions.

Operators at zero emissions airports will not be able to purchase “off-set credits” to achieve neutrality.

Offsetting is considered a temporary measure to deal with residual emissions, which airports will gradually have to replace with the use of renewable energy as new technologies and decarbonisation opportunities arise.

NetZero2050 has been signed by over 200 airports managed by more than 47 airport operators in 42 European countries.

Based on current European airport traffic volumes (2.34 billion passengers welcomed in 2018) and the estimated carbon footprint, this commitment to zero emissions will hopefully reduce annual emissions by 3.46 million tons by 2050.

As such, SEA and the European airport industry are aligning themselves with the Paris Agreement and the latest reports from the IPCC, which reaffirm the need to guarantee a temperature rise of no more than 1.5°C.