Environmental Initiatives

Green Wise Activity Standards
CO2 Emissions Reduction Target
Water Usage Status
Biodiversity

Green Wise Activity Standards

With a Slow Green philosophy, Green Wise celebrates the beauty of the natural world which is rooted in people’s lives. Through the respect for the environment, and desire to improve the quality of sustainable life, we have been developing the guiding principle of our activities to “Be natural, connect with nature, and nurture our daily life”. As such, all activities and services which we provide aim to have a positive effect on the natural environment with green as our main focus.

In this Environmental Report, we introduce our efforts, such as rooftop greening, energy circulation, and the use of fallen leaves and branches.

Electricity use
reduced by 5.3％

Green Rooftop

Thanks to our carefully designed green roof above the Green Wise head office, the room temperature in the building was reduced by up to 3.4 degrees in summer, and raised by up to 6.1 degrees in winter, resulting in a 5.3% reduction in annual electricity consumption.

「つながる庭」本社屋上庭園

株式会社シグマ本社ビル

MARK ISみなとみらい

Gas use
reduced by 40％

Greenhouse Temperature Control

Green Wise started as a tree rental company in 1905 and although it has since diversified, tree rentals are still part of its services. As such, the greenhouse, housing a variety of tropical plants, is located at the company headquarters.

By opening and closing the greenhouse’s protective gauze/cheesecloth as needed and allowing adequate sunlight to enter, we have reduced gas usage by 40% since 2018. The greenhouse temperature is maintained at 12 degrees in the winter.

Waste
reduced by 30％

Waste Reduction

We have reduced our annual industrial waste by 103.085m3, or about 30%, since 2018. 84.74% of industrial waste that cannot be reused within the company is recycled, such as branches, leaves and flowers into compost and mulch, and soil and sand into cultivated soil.

Recycled 100％

Utilising Fallen Leaves and Branches

All branches pruned at the head office are chipped and reused as wood chips for garden paths, mulch, smoked wood, etc. At Maruta, the regenerative gastronomy restaurant part of the Green Wise group, collected Katsura tree leaves are used in a variety of ways, such as flavouring cakes, or dried and used to make faromatic syrups and made into pastries.

Potable water
use reduced by 49％

Utilising Rainwater

By using harvested rainwater to irrigate the roof garden and for flushing toilets within the head office building, the amount of potable water used within the company was reduced by 49%.

Electricity use
reduced by 16％

Solar Power Generation

By installing solar panels, 12,00kwh, or 16% of the annual electricity usage of the Green Wise headquarters has been covered by solar power generation.

CO2 Emissions Reduction Target

The goal is to reduce emissions by approximately 50% by 2030, based on 2018 emissions.

CO2 emission reduced by 50.4％

Green Wise obtained SBT certification for small and medium-sized enterprises in February 2024.

*SBT (Science Based Targets) certification is an international initiative that sets greenhouse gas reduction targets for companies, based on scientific evidence.

Scope1

CO2 emission from gas and gasoline use:

Scope2

CO2 emission from electricity use:

Scope3

Scope 3 refers to the CO2 emitted in the process of the services provided by Green Wise, from sourcing raw materials such as plants, to construction, sales, use, and disposal. Since 2023, we have been measuring and monitoring the indirect emissions of our collaborators and related companies other than Scope 1 and Scope 2.

Water Usage Status

Between 2018 and 2023, water usage will be reduced by 343m3, or approximately 70% of the water used in a 25m long swimming pool (approximately 468m3).

Potable water
use reduced by 343m³

Biodiversity

Insects 54

Birds 6

Green Wise’s diversely planted roof garden and surrounding natural landscaped areas have become a haven for wildlife. Six species of birds were observed, three of which are listed on the Red List of Threatened Species in Minami Tama, the local area. 54 species of insects were observed, 14 of which were bees acting as pollinators (insects that carry pollen), such as the Japanese honeybee and the Western honeybee. The endangered short-horned grasshopper, a species also on Minami Tama’s Red List, was also observed.