In 2011, the Group emitted 16.6 Mt of CO2 eq.
Fossil energies and fuels: 0.4 Mt of CO2 eq.
The Bouygues group takes several types of action to reduce its fuel consumption, including raising employees’ awareness of eco-driving techniques, inspections of plant and equipment, a car-sharing fleet of about 30 electric vehicles and a fleet of about 500 electric light commercial vehicles.
Electricity: 2 Mt of CO2 eq.
Energy management is a major challenge, illustrated by the development by Bouygues Energies & Services (a Bouygues Construction subsidiary) of Hypervision®, a building energy management software tool. The Group voluntarily applies the most recent energy efficiency standards.
Business travel, moving materials, service inputs, freight, depreciation of plant and equipment, and waste processing: 14.2 Mt of CO2 eq.
The bulk of the Group’s CO2 emissions are linked to product and service inputs such as concrete, steel, asphalt mix, telephones and services. Action is leveraged in-house by innovations that increase efficiency and externally by partnerships with suppliers (e.g. Thermedia® low-carbon concrete developed with Lafarge).
One tonne of CO2 equivalent: there are several types of greenhouse gas whose toxicity varies. Rather than measure the emissions of each type of gas, we use a common unit: CO2 equivalent which can be used to compare different greenhouse gases by using CO2 as the benchmark.
Greenhouse gases (GHG) are gaseous components (carbon dioxide, methane, nitrous oxide, etc.) which absorb a part of the sun’s rays and then emit them in the form of radiation within the earth’s atmosphere. This phenomenon is called the “greenhouse effect.” The increase in the concentration of greenhouse gases in the earth’s atmosphere is suspected to be a causal factor of recent global warming.
(Updated: January 2016)