Definition of Environmental sustainability
The maintenance of the factors and practices that contribute to the quality of environment on a long-term basis. This includes monitoring of environmental resources such as water.
Environmental management system (EMS) refers to the management of an organization's environmental programs in a comprehensive, systematic, planned and documented manner. It includes the organizational structure, planning and resources for developing, implementing and maintaining policy for environmental protection.
The most widely used standard on which an EMS is based is International Organization for Standardization (ISO) 14001.
An environmental management information system is an information technology solution for tracking environmental data for a company as part of their overall environmental management system.