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Environmental key figures in Switzerland

    Unit   2015   2016   2017
                 
Land/buildings
Net floor space (NFS)   million m2   0.92   0.93   0.93
                 
Paper consumption
Total paper consumption   Tonnes   5,401   5,130   4,444
                 
Water/sewage
Water consumption 1   m3   183,654   182,451   188,410
                 
Energy, electricity
Electrical energy consumption 2   Terajoule   1,563   1,613   1,683
    GWh   434   448   468
                 
Energy, heating 3
Heating oil   Terajoule   109.4   106.3   95.9
Natural gas   Terajoule   24.4   28.2   26.6
District heating   Terajoule   36.7   39.6   40.0
Total Heating   Terajoule   170.5   174.1   162.4
                 
Energy, fuel 4
Petrol   Terajoule   15.9   21.6   16.4
Diesel fuel   Terajoule   125.0   116.3   111.3
Natural gas   Terajoule   2.6   1.9   0.3
Total fuel   Terajoule   143.5   139.8   128.0
Vehicles   Number   3,693   3,403   3,160
Kilometers driven   million km   59.5   60.2   54.9
Average CO2 emissions 5   g per km   113.0   109.0   105.0
                 
Energy, total
Energy consumption   Terajoule   1,877   1,929   1,973
    GWh   521   536   548
                 
Air emissions
Carbon dioxide CO2-eq from the consumption of fossil energies 6   Tonnes   20,129   19,837   18,119
Nitrous gases NOx 7   Tonnes   19.6   19.3   17.9
Sulphur dioxide SO2 8   Tonnes   3.7   2.8   2.8
                 
Waste
Total amount of waste   Tonnes   5,117   6,951   5,647
1 The water consumption (without cooling water) is extrapolated on the basis of the average rate of 42.8 litre per FTE per day.
2 Energy conversion: 1 terajoule (TJ) = 0.278 gigawatt hours (GWh).
3 The heating energy consumption is based on a forecast of monthly measures of the consumption of 61 buildings (with a total floor space of over 45%).
4 The fuel consumption was adjusted from private use. The km driven and the air emissions were adjusted accordingly.
5 Average emissions per kilometre refer to manufacturer’s indications.
6 CO2 emissions from consumption of fossil energies, without district heating and refrigerant fluid. Swisscom published a complete climate report according to ISO 14064.
7 From Mobitool (www.mobitool.ch), car traffic, national 5-200 km, direct use, load 1.25, fuel consumption 6.01 litres per 100 km (2014), 6.00 (2015), 5.9 (2016), 5,8 (2017).
8 According to publications “Pollutant Emissions from Road Transport, 1990 to 2035, FOEN, update 2010, annex 6, p. 91, 2010” and “Worksheet emissions factors combustion”, FOEN, 2005 (in German).