Initiatives to prevent
global warming

CO2 emission trends

CO2 emission trends

In FY2021, the Group's total CO2 emissions were up approximately 4% from FY2015. This does not include the emissions attributed to one site in Japan and one outside Japan that joined the Group after the base year. Energy-derived CO2 emissions remained at about the same level overseas, but in Japan, they were reduced due to consumption of high-efficiency selfgenerated power using waste to energy facility as well as a review of each site's electricity contract plans. The result was an overall reduction of 27%. On the other hand, non-energy-derived CO2 emissions generated through industrial waste incineration were up approximately 29% from FY2015, but the lifespan of final disposal sites was extended by incinerating waste plastic and drastically reducing its volume.

If we look at the CO2 emissions above by Scope, Scope 1 emissions account for 89,600 tons of CO2, and Scope 2 emissions account for 13,400 tons of CO2. Scope 3 emissions account for 137,200 tons of CO2.

<Scope of data>
Headquarters, sites, sales offices and plants in Japan, as well as Group companies* and overseas subsidiaries* (calculation period: April to March)
*The data pertains to consolidated subsidiaries as of March 31, 2022. Data for deconsolidated subsidiaries has been subtracted retroactively, while data for subsidiaries that were previously non-consolidated has been added retroactively, going back to the fiscal year when the subsidiary became consolidated.
<Calculation method>
Energy-derived emissions: Calculated based on the amounts of electricity and fuel consumed at each site (emissions in Japan calculated based on the Act on Promotion of Global Warming Countermeasures and the Act on the Rational Use of Energy)
Non-energy-derived emissions: Calculated based on the amount of industrial waste incineration.

Generating power from waste

Waste-to-energy is a power generation method that uses the heat generated from waste incineration. It produces high temperatures and high-pressure steam that turns a turbine and generates power.
By taking advantage of the energy released during waste incineration to produce electricity, the Group can reduce the amount of fuel used, thereby reducing CO2 emissions accordingly.
The Group is constructing a waste-to-energy power plant in the city of Kitakyushu. By achieving advanced and highly efficient heat recovery, we are helping to prevent global warming and build a low-carbon society.

Generating power from waste