Environment 	In brief 	Terna and the environment 	Managing the environmental impacts of the electricity grid 	Integration of power lines in the environment 	Use of resources and waste management 	Monitoring and supervision of electromagnetic fields 	Electricity power lines, biodiversity and birdlife 	Atmospheric emissions and energy efficiency 	Direct and indirect CO	Containment of direct emissions: SF6 leakage 	Consumption and cuts in emissions: energy efficiency 	Other indirect CO2 emissions 	Environmental costs 	Accounting methodology 	Capital expenditure and operating costs 	9.