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Green infrastructure is a strategically planned network of natural and semi-natural areas, which include other environmental features designed and managed to deliver a wide range of ecosystem services. These include water purification, air quality, space for recreation and climate mitigation and adaptation. This network of green (land) and blue (water) spaces can improve environmental conditions and therefore citizens' health and quality of life. It also supports a green economy, creates job opportunities and enhances biodiversity. To maximise the benefits it provides, GI should be an essential component of spatial and physical planning. Developing GI is a key step towards successfully implementing the EU 2020 biodiversity strategy. Target 2 of the strategy requires that ‘by 2020, ecosystems and their services are maintained and enhanced by establishing green infrastructure and restoring at least 15 % of degraded ecosystems.’