Promoting Biodiversity Conservation and Sustainable UseHuman activities are believed to have taken many species to the brink of extinction, rapidly upsetting the balance of ecosystems. Recognizing richly diverse ecosystems as a foundation of its business, the Tokyo Gas Group has drawn up the Guidelines for Promoting Biodiversity Conservation to preserve biodiversity and its sustainable use and ensure the continuity of our business. Specifically, we monitor the status of each segment of the value chain and work to mitigate the impact on ecosystems while also engaging in forest conservation efforts at our Nagano Tokyo Gas Forest along with other activities.
Carrying Out Environmental Impact AssessmentExtracting natural gas and constructing LNG (liquefied natural gas) terminals or power stations have a far from negligible impact on the landscape and natural environment. The Tokyo Gas Group has reviewed the state of biodiversity conservation at natural gas wells abroad and confirmed that consideration is given to local ecosystems. In Japan, we conduct the required environmental assessments for the construction of LNG terminals and power plants and cooperate with nongovernmental organizations to undertake such activities as managing green spaces with due consideration for ecosystems. Taking into account the growing risks facing watersheds, we assessed the impact of drainage on ecosystems at all our LNG terminals with the use of the Integrated Biodiversity Assessment Tool, and we did not find problems.
Hard clams not previously found in Japanese waters
ProductionWe are greening the sites of the Sodegaura, Negishi, Ohgishima and Hitachi LNG Terminals by only partially mowing grass fields and curbing the use of herbicides, and our staff also plant trees.
Staff members plant trees at an LNG terminal
Japanese rice fish in our artificial pond
SupplyWhile we previously used pit sand to refill sites excavated for gas pipeline work, reducing the use of pit sand mitigates environmental destruction around quarries and reduces the number of sand-carrying vehicles and CO2 emissions. The Tokyo Gas Group lays pipes in shallower, narrower trenches than conventional installations and adopts a non-open cut construction method, which does not dig up roads, to reduce the volume of excavated soil. Also, we are increasing the use of improved soil and recycled road surface materials as well as a new temporary backfill for refill work to reduce the amount of pit sand used.
Workers using a shaft to thrust a gas pipe into place
Pipeline work using Eco-balls, a new kind
OfficesWe plant trees on rooftops and create green curtains at our offices and corporate museums. We have greened the rooftop of the Gas Science Museum and point to this example in communicating with customers as well as local elementary schools and other community groups. At the TG Kumagaya Building, plants growing against the walls and near the windows provide shade to lower indoor temperatures.
Biodiversity Conservation Activities at Nagano Tokyo Gas ForestWe have been monitoring the environment at the Nagano Tokyo Gas Forest since 2007 together with a local nonprofit organization as an effort to conserve biodiversity. We have confirmed a total of 428 species of living organisms in the forest (324 plants, 26 mammals and 78 birds).
Environmental and Social Contribution Activities in the Mori Sato Umi Tsunagu (Connecting Forests, Villages and Ocean) Project