McKenna Davis, Senior Fellow at Ecologic Institute, was one of 8 experts speaking on the topic of 'strategies for urban biodiversity' during the Digital Blue Green Event hosted by the Scandinavian Green Roof Institute on 14 March 2023. She began by outlining key challenges facing urban water management, including an increasing frequency and intensity of heavy rainfall events, urban surface sealing and combined sewer overflow events. McKenna then introduced the NICHES project and its aim to rethink the status quo by deploying nature-based solutions and approaching the urban water system as a holistic Social-Ecological-Technical-System (SETS).

The NICHES project flyer illustrates the main project objectives and case-study cities. An overview of the project process is illustrated, together with details of the partner cities implementing the project. The flyer is styled according to the project style-guides and contains contact information.

The first International Symposium of the NICHES project will combine presentations about international successful examples of nature-based solutions and provide a forum for discussion about current challenges and opportunities in the Metropolitan Area of Barcelona.

Nature-based solutions (NBS) are recognised as cost-effective tools to alleviate pressure during high rainfall events while producing wider societal and environmental benefits, but uptake is limited in practice due to lacking evidence. The NICHES project – Nature's Integration in Cities' Hydrologies, Ecologies and Societies – aims to fill this gap by adopting a holistic social-ecological-technical systems (SETS) approach to explore the potential of urban NBS as an alternative to the costly renewal of grey wastewater systems. Five global cities – Barcelona, Berlin, Boston, Sheffield, and Rotterdam – will be utilized to co-create knowledge and develop a shared understanding of restorative NBS that can be applied to avoid storm-water run-off and negative impacts for aquatic biodiversity.