English: green infrastructure
Welsh: seilwaith gwyrdd 
Subject: Amgylchedd
Welsh definition: The European Commission defines green infrastructure as: “the use of ecosystems, green spaces and water in strategic land use planning to deliver environmental and quality of life benefits. It includes parks, open spaces, playing fields, woodlands, wetlands, road verges, allotments and private gardens. Green infrastructure can contribute to climate change mitigation and adaptation, natural disaster risk mitigation, protection against flooding and erosion as well as biodiversity conservation” (The Scottish Government, Green Infrastructure: Design and Placemaking).