related to mobility, parks, beaches, natural areas, equipment, resources, facilities, technical environmental services and supplies services. Transport and mobility The AMB plans and manages bus networks and other public transport, except for trams. Its powers, apart from planning and management, are: Urban surface public transport, except for trams. Mmetro and underground public transportation. Regulation of the taxi service. Approval of the Urban Mobility Metropolitan Plan. Definition of the basic metropolitan road network. Participation in traffic management in this network, together with the Catalan Government. Planning and management of passenger transportation with tourist and cultural purposes, delegated by town councils. Promotion of sustainable transport. Management of the Barcelona ring roads. Environment and sustainability Environmental and sustainability powers include the water supply and treatment, waste management and management of the environment. Water cycle Home supply of drinking water or domestic water supply downstream. Purification of water collected for its use. Wastewater purification. Regeneration of purified wastewater for other uses such as irrigation or aquifers recharging. Coordination of water treatment municipal systems, including the planning and integrated management of rainwater and wastewater evacuation, and of the sewage. Regulation of the corresponding fees. Waste Treatment of municipal waste products and products resulting from works, as well as its recovery (reuse and recycling of paper, metal, plastic and other materials, energy and compost production, etc.) and disposal (controlled discharge of non-recyclable waste products). Coordination of municipal collection systems. Picking and selection of containers. Waste recycling facility, in collaboration with municipalities. Other powers Coordination and formulation of a Metropolitan Action Plan for environment, health and biodiversity protection, and measures to fight against climate change, and formulation of a metropolitan 21 Agenda.• Participation in the production of acoustic capacity and strategic noise maps. Issue of environmental reports. Collaboration with municipalities in environmental planning policies. Development and management of renewable energy facilities. Housing The AMB exercises its powers in land and housing policies established by the urban legislation. It does so by delegation of metropolitan municipalities and to ensure intermunicipal solidarity in these actions. The AMB defines land and housing policies, within the Metropolitan Urban Master Plan, with the aim of ensuring intermunicipal solidarity in these actions and exercising the constitutional right to housing. The AMB exercises its powers in land and housing policies as laid down by the urban legislation, delegated by metropolitan municipalities. The AMB carries out territorial planning actions to assign land to industrial and