Environment

in Fact sheets

Carbon emissions

Direct (Scope 1) Emissions
2015in metric tons CO2e 2014in metric tons CO2e 2013in metric tons CO2e
Direct (Scope 1) emissions 31,446,166 31,132,366 31,360,099
Aircraft (jet fuel) 31,279,288 30,966,621 31,206,973
Vehicles (diesel, gasoline, CNG, LPG) 78,315 75,361 71,052
Facilities (natural gas combustion, engine test cells) 88,563 90,384 82,074
Intensity ratio (Scope 1 metric tons CO2e / 1000 RTM) 1.50 1.53 1.56
Indirect (Scope 2) emissions
2015in metric tons CO2e 2014in metric tons CO2e 2013in metric tons CO2e
Indirect (Scope 2) emissions 283,499 416,062 307,164
Electricity Consumption 283,499 416,062 307,164
Other Indirect (Scope 3) Emissions
2015in metric tons CO2e 2014in metric tons CO2e 2013in metric tons CO2e
Other Indirect (Scope 3) emissions 6,474,314 7,022,328 7,234,932
Regional Jet Fuel 6,472,504 7,020,223 7,234,932
Vehicles (diesel, gasoline, CNG, LPG) 1,809 2,105 N/A

Local air quality

NOx Emissions
2015in tons NOx 2014in tons NOx 2013in tons NOx
NOx emissions 13,139 13,027 14,473
Mainline Aircraft (jet fuel) 11,988 11,864 13,347
Vehicles (diesel, gasoline, CNG, LPG) 1,022 1,032 986
Facilities (Natural gas combustion, engine test cells) 129 131 140
SO2 emissions
2015in tons SO2 2014in tons SO2 2013in tons SO2
SO2 emissions 1,173 1,171 1,244
Mainline Aircraft (jet fuel) 1,172 1,170 1,243
Facilities (Natural gas combustion, engine test cells) 1.00 1.00 1.33
CO emissions
2015in tons CO 2014in tons CO 2013in tons CO
CO emissions 9,164 9,231 10,109
Mainline Aircraft (jet fuel) 6,370 6,324 6,961
Vehicles (diesel, gasoline, CNG, LPG) 2,724 2,836 3,084
Facilities (Natural gas combustion, engine test cells) 70 71 64
Waste management
2015in metric tons 2014in metric tons 2013in metric tons
Waste – total 57,965 59,277 52,193
Hazardous 342 555 615
Non-hazardous/other waste 46,378 49,393 44,671
Recycled Waste – Non-Catering 8,594 6,454 4,711
Recycled Waste – Catering 2,651 2,875 2,196
Water consumption
2015in gallons 2014in gallons 2013in gallons
Billed water consumption 343,393,628 355,318,889 324,974,561
Energy consumption
2015 2014 2013
Electricity (Mwh) 561,586 763,023 575,562
Aircraft (mainline jet fuel – gallons) 3,215,520,611 3,183,378,284 3,204,239,352
Natural Gas (MMBtu) 1,579,085 1,204,290 990,555
Other
2015 2014 2013
Revenue Ton Miles (RTM) 1 20,976,660,064 20,386,177,852 20,062,685,595
Gallons/RTM 0.1533 0.1562 0.1597
Footnotes:
  1. Data Source: DOT BTS Data (mainline only)

Footnotes

Note: Due to improved data capture, United was able to more accurately report energy consumption reflecting the increase between 2013-2014.