NTT Group CSR > Environmental Goals and Activities: Results and Assessment

Environmental Goals and Activities: Results and Assessment

Striving to achieve NTT Group Principal Activity Plan Targets through actions aimed at preventing global warming and reducing waste and consumption of paper
Refining environmental accounting practices to enable more efficient and effective environmental management

Progress made on the NTT Group Principal Activity Plan Targets (by fiscal 2011)

【Prevention of global warming】

Goals

Reduce CO2 emissions per subscriber by at least 35% based on fiscal 1991 levels for all telecommunications carriers. (Telecommunications carriers: NTT EAST, NTT WEST, NTT Communications, NTT DoCoMo)
Reduce CO2 emissions per unit of sales by at least 25% based on fiscal 1991 levels for all other group companies. (Other group companies: NTT DATA, NTT COMWARE, NTT FACLITIES, etc.)

Specific activities

Results (in graphs)

CO2 emissions reduction rates of NTT telecommunications carriers declined.
Power consumption rose due to increased deployment of IP related equipment and base stations for third generation mobile technology, resulting in a decline in CO2 emissions reduction rates compared with the previous year.

CO2 emissions reduction rates of telecommunications carriers(base year: fiscal 1991)

This is a graph showing CO2 emissions reduction rates of telecommunications carriers. In fiscal 2007, reduction rate was 28.48% when emissions coefficient is set at 0.378, and 22.2% when fiscal year-specific emissions coefficients are used.

CO2 emissions reduction rates of other group companies declined.
Power consumption rose due to increased deployment of data centers and other equipment, resulting in a decline in CO2 emissions reduction rates compared with the previous year.

CO2 emissions reduction rates of other group companies(base year: fiscal 1991)

This is a graph showing CO2 emissions reduction rates of other group companies. In fiscal 2007, reduction rate was 26.32% when emissions coefficient is set at 0.378, and 24.04% when fiscal year-specific emissions coefficients are used.

CO2 emissions from business operations

This is a graph showing reduction in energy consumption through use of ICT, and total energy consumption of ICT devices and network equipment.

- Coefficients used for calculating CO2 emissions based on levels of power consumed were 0.378 kg/kWh for fiscal 2003 - 2005 and 0.555 kg/kWh for fiscal 2006. For fiscal 2007, the coefficients of respective power suppliers were used.

【Waste reduction】

Goals

Reduce amount of final disposal waste to no more than 15% of fiscal 1991 levels.

Specific activities

Reduce the amount of final disposal waste through reduce, reuse, and recycling efforts.

Results (in graphs)

Amount of final disposal waste* declined and reduction target was cleared.
Waste output increased slightly due to additional installations of IP equipment and base stations for third generation mobile technology, but at 32,000 tons the amount of final disposal waste cleared our reduction target.

Waste output and final disposal waste

*Waste disposed of in landfills

【Reduction in paper use】

Goals

Reduce consumption of virgin pulp to no more than 80% of fiscal 1991 levels.

Specific activities

Results (in graphs)

Consumption of virgin pulp for telephone directories declined and overall reduction target was cleared.
For fiscal 2007, the inclusion of billing statements as an item of virgin pulp consumption caused a slight increase over the previous year to 29,000 tons. Consumption of virgin pulp for telephone directories fell to 23,000 tons, and overall target for the year was cleared.

Virgin pulp consumption

- In fiscal 2007 billing statements were also included in assessments of virgin pulp consumption.

Environmental accounting

The NTT Group introduced environmental accounting in fiscal 2001 to boost the efficiency and effectiveness of its environmental conservation efforts by quantitatively determining both the cost of environmental conservation programs undertaken as part of its business activities and the returns gained. In fiscal 2007, as a result of making further recycling efforts and switching to intermediate processors offering superior cost performance, we were able to boost the amount of recycled waste materials by nearly 20,000 tons in addition to saving nearly 790 million yen in resource recycling costs compared with fiscal 2006. We are determined to further improve our environmental management through quantitative measurement and analysis of our environmental activities.

Environmental accounting

1. Scope of data
The companies subject to consolidated environment accounting are NTT, NTT EAST, NTT WEST, NTT Communications, NTT DATA, NTT DoCoMo, and their group companies (159 companies in total).

2. Applicable period
Data for fiscal 2007 report is from April 1, 2006 to March 31, 2007
Data for fiscal 2006 report is from April 1, 2005 to March 31, 2006

3. Accounting method

Accounting is based on the NTT Group Environmental Accounting Guidelines. These guidelines comply fully with the Environmental Accounting Guidelines 2005 issued by the Ministry of the Environment.
Environmental conservation costs are expressed in monetary units and conservation benefits in monetary units or physical quantity.
Environmental conservation costs are tabulated separately as environmental investments and environmental costs. From fiscal 2004, depreciation costs are included in environmental costs. Personnel costs are also included in environmental costs.
Figures for environmental investments and costs for fiscal 2006 were partially revised as a result of reexamination of available data.
Reductions in CO2 emissions through energy conservation measures are calculated by subtracting actual emissions from estimated emissions in the event that no such measures were taken.