UNEA resolution 5/5 defines nature-based solutions as “actions to protect, conserve, restore, sustainably use and manage natural or modified terrestrial, freshwater, coastal and marine ecosystems which address social, economic and environmental challenges effectively and adaptively, while simultaneously providing human well-being, ecosystem services, resilience and biodiversity benefits”. The definition goes further to highlight a number of criteria and considerations for the application of NbS, including social and environmental safeguards. (EU Nature-based Solutions: 2022)