Greenhouse gas emissions
GHG emissions (kt CO2eq)
The greenhouse gases (GHG) emitted in the atmosphere by the Snam’s activities are methane (CH4), the main component of natural gas, and carbon dioxide (CO2). Methane emissions arise from the release of natural gas into the atmosphere and are generated by normal plant operation, by operations to connect new gas pipelines and the maintenance thereof, or by accidental events occurring at infrastructures, whereas the CO2 produced is directly correlated with fuel consumption. In 2018 Scope 1 direct emissions also evaluated the marginal contribution from the use of hydrofluorocarbons (HFCs) at refrigeration plants which was around 0.14 kt CO2eq.
In 2018, the total GHG emissions (direct Scope 1, indirect Scope 2MB and Scope 3) amounted to approximately 1.97 million tonnes of CO2eq (+12.7% compared with 2017). The increase is entirely due to Scope 3 emissions which doubled compared with the previous year.