The Driving Force - Pressure - State - Impact - Response Framework (DPSIR) provides an overall mechanism for analysing environmental problems. Driving forces, such as industry and transport, produce Pressures on the environment, such as polluting emissions, which then degrade the State of the environment, which then Impacts on human health and eco-systems, causing society to Respond with various policy measures, such as regulations, information and taxes, which can be directed at any other part of the system.