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Detailed data

Reduction of CO2 Emissions across Society

Reduction of CO2 Emissions across Society through the NTT Group's ICT

Contribution to Reducing CO2 Emissions across Society

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(Fiscal year) 2017 2018 2019
Reduction of CO2 Emission across Society 10.1 times 10.8 times 12.5 times

Power Efficiency of the Telecommunications Business

Power efficiency of telecommunications business Power Efficiency of the Telecommunications Business

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(Fiscal year) 2017 2018 2019
Power Efficiency of the Telecommunications Business 3.6 times 4.5 times 5.4 times

Indirect GHG Emissions Generated over the whole Value Chain

Fiscal 2019 Scope 3 Emissions

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Scope category Scope and method of calculation Emissions
(millions of t-CO2e)
GHG emissions (Scope 1 + 2 + 3) 22.84
Scope 1 (direct emissions) 0.138
Scope 2 (indirect emissions from energy use) 3.06
Scope 3 (indirect emissions from the value chain) 19.65
  Category 1: Purchased goods and services Calculation based on the number of units and monetary value of purchases of devices and services sold to customers 4.08
Category 2: Capital goods Calculation based on capital investment costs on telecommunications and other equipment 6.02
Category 3: Fuel- and energy-related activities not included in Scope 1 and 2 Calculation based on annual consumption by energy type 0.60
Category 4: Upstream transportation and distribution Calculation based on weight and distance, or number of devices with regard to the transport of devices sold to customers 0.05
Category 5: Waste generated in operations Calculation based on volume of waste by type 0.01
Category 6: Business travel Calculation based on paid expenses for business travel 0.19
Category 7: Employee commuting Calculation based on paid expenses for employee commuting 0.07
Category 8: Upstream leased assets*1 Excluded from calculation*1
Category 9: Downstream transportation and distribution*2 Excluded from calculation*2
Category 10: Processing of sold products*3 Excluded from calculation*3
Category 11: Use of sold products Calculation based on number of service subscriptions, number of devices and monetary value of telecommunications services and devices used by customers 5.67
Category 12: End-of-life treatment of sold products Calculation based on number of service subscriptions, number of devices and monetary value of communications devices used by customers 0.05
Category 13: Downstream leased assets Calculation based on average use of leased assets 0.75
Category 14: Franchises Calculation based on total floor area of sales franchises 0.09
Category 15: Investments Calculation based on Scope 1 and 2 emissions of investees in proportion to shareholding 2.07
  1. We have excluded Category 8 (upstream leased assets) from the calculation because the fuel and electricity used by leased assets is included in Scope 1 and 2 calculations.
  2. We have excluded Category 9 (downstream transportation and distribution) from the calculation because these emissions are almost entirely from our own transportation and use in our own facilities (included in Scope 1 and 2) or from outsourced transportation (included in Category 4).
  3. We have excluded Category 10 (processing of sold products) from the calculation because our main businesses involve no processing of intermediate products.

GHG emissions

*In fiscal 2013, the NTT Group became the first telecommunications carrier in Japan to calculate and disclose emissions from all 15 Scope 3 categories based on actual data for that year, in addition to the emissions generated directly from fuel use, etc. (Scope 1) and emissions generated indirectly in conjunction with electrical and other energy use, etc. (Scope 2). We based our calculations on the Ministry of the Environment's Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain (Ver. 2.3). We will endeavor to improve the precision of our data collection while continuing to calculate and disclose Scope 3 emissions.

CO2 Emissions of NTT Group

CO2 Emissions from Business Operations CO2 Emissions from Business Operations

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Fiscal year 2015 2016 2017 2018 2019
Electricity purchased (billion kWh) 8.74 8.36 8.23 6.54
(8.24)
6.59
(8.20)
CO2 attributable to electricity consumption (millions of t-CO2) 4.665 4.375 4.183 3.259
(4.115)
3.031
(3.764)
CO2 attributable to gas and fuel consumption (millions of t-CO2) 0.139 0.134 0.135 0.118 0.101
CO2 attributable to company vehicles (millions of t-CO2) 0.042 0.038 0.033 0.031 0.027
CO2 attributable to heating (millions of t-CO2) 0.027 0.029 0.027 0.029 0.030
Total CO2 emissions (millions of t-CO2) 4.87 4.58 4.38 3.44
(4.29)
3.19
(3.92)
  1. The CO2 emissions from business operations exclude emissions of greenhouse gases other than CO2.
  2. The NTT Group provides equipment and the like necessary for other telecommunications carriers and data center providers to carry out their businesses. To date, we have included the fuel and electricity required for this equipment in our disclosed emission and consumption volumes in accordance with reporting methods outlined by the Act on Promotion of Global Warming Countermeasures. However, as calculation methods have been established based on the Ministry of the Environment's Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain (ver. 2.3), we have adopted these for calculating the above CO2 emissions as Scope 3. Emission amounts calculated using the previous method have been placed within parentheses. Similarly, for amounts of electricity purchased and total amount of non-renewable energy, from fiscal 2018 onward we are excluding the amount consumed by other telecommunications carriers and data center providers, and values calculated using the previous method will be placed within parentheses, and we have adopted these for calculating the above CO2 emissions as Scope3 from fiscal 2019.

Electric Power Consumption Electric Power Consumption

Use of Clean Energy

Clean Energy Generation Clean Energy Generation

Increasing low-Emission Company Vehicles

Fuel Consumption by Company Vehicles

Fuel Consumption by Company Vehicles

Final disposal rate of waste

Final disposal rate of waste Final Disposal Ratio

Waste Discharged by NTT Group

Results of Recycling, Waste Reduction and Final Disposal

Results of Recycling, Waste Reduction and Final Disposal

Waste and Final Disposal Waste Waste and Final Disposal Waste

Hazardous Waste

Asbestos removed from NTT Group Facilities Asbestos removed from NTT Group Facilities

Paper Management and Recycling

  • Virgin Pulp Consumption Virgin Pulp Consumption

  • Paper Consumption Reductions from NTT Internet Billing Services Paper Consumption Reductions from NTT Internet Billing Services

Water Management and Recycling

Use of Water Resources

*The reuse rate shown up to fiscal 2017 corresponds to the total volume of tap water and sewage, recycled water, and rainwater used, while the reuse rate from fiscal 2018 onward corresponds to the total volume of tap water, recycled water, and rainwater.