Reducing environmental impact by applying the best available technologies and best practice in the stages of plant design, construction, operation, maintenance and decommissioning > Assessment of the environmental impact from the construction of plant or significant changes > Identification, assessment and sustainable use of BAT (Best Available Technologies) > Protection and monitoring of the quality of surface water, soil and subsoil in areas around the plants > Identification and development best practices inside and outside the Group and promotion of their application throughout the Group 4.