There is growing recognition that using the properties of nature can help provide viable and cost-effective solutions to a broad range of societal challenges, including disaster risk reduction

Martin, J.G.C.

Linnerooth-Bayer, J.

Liu, W.

Scolobig, A.

International Institute for Applied Systems Analysis (IIASA)

I I A S A  P O L I C Y  B R I E F  # 2 5D E C E M B E R  2 0 1 9© Vladvitek | DreamstimeGovernance innovation through nature-based solutionsThere is growing recognition that using the properties of nature can help provide viable and cost-effective solutions to a broad range of societal challenges, including disaster risk reduction.  J New research looked at the governance factors that contribute to the success of nature-based solutions beyond their cost-effectiveness and technical viability.  J Researchers identified the key governance enablers and (co)benefits of nature-based solution success stories based on three case studies: Nocera Inferiore (Italy), Munich (Germany), and Wolong (China). The most critical enablers involve governance innovation in three areas:   •  Polycentric governance: Novel arrangements emerged in the public administration that involved organizations to include not only flood and landslide protection, but also nature conservation, urban planning, water quality, waste management, tourism, recreation, and many more administrative responsibilities. •  Participatory co-design: Novel stakeholder participatory processes influenced the eventual shape of the nature-based solution. Despite the absence of formal procedures for involving civil society, businesses, and other stakeholders in the process, stakeholder engagement was a central and innovative feature of each case.  •  Financial incentives: In the Wolong case, local authorities designed and implemented novel incentives for households in consultation with villagers to monitor illegal logging in a nature reserve. J A further enabler was strong advocacy groups both in and outside government, along with their individual champions. This was coupled with a major triggering event that opened a window to advocate for a nature-based or hybrid green-blue-grey solution.   J The cases provide evidence of the prominence and in some instances the inevitability of hybrid nature-based solutions. Governance involves finding compromises that can resolve the interest and value conflicts underlying the green–grey divide.  J A major insight from the case studies is the importance of merging co-benefit agendas, which at the global scale can contribute to critical transformative missions, such as the Sendai Framework or the Paris Agreement.Looking to nature for solutions There is growing recognition that using nature’s own attributes can help provide viable and cost-effective solutions to a broad range of societal and environmental challenges. The European Commission defines nature-based solutions as “actions that are inspired by, supported by, or copied from nature”. Nature-based solutions have emerged as promising strategies for reducing flood, landslide, extreme heat, and other disaster risks. They also aim to provide society with multiple co-benefits, such as ecological resilience, economic growth, and health. Nature-based solutions is an umbrella term that covers a variety of ecosystem-related approaches, such as ecosystem-based adaptation and green infrastructure, to deliver a wide range of ecosystem services. They are increasingly adopted as complements or alternatives to traditional “hard” or “grey” infrastructure solutions that exclusively involve man made structural features.The PHUSICOS (“According to nature” in Greek) Project, funded by the European Union Horizon 2020 Program, demonstrates how nature-based solutions provide robust, sustainable, and cost-effective measures for reducing the risk of extreme weather events in, or emanating from rural mountain landscapes. Nature-based solution success stories Researchers at IIASA and the University of Geneva described and compared the institutional, legal, social, and economic factors—that is, governance frameworks—for initiating, planning, designing, and implementing nature-based solutions in three successful cases as solutions to climate risks in mountain landscapes: i) Landslide risk in Nocera Inferiore, Italy ii) Flood risk on the Isar River in Munich, Germany; and iii)  Flood and landslide risk in Wolong National Nature Reserve, China. The three selected case studies (Sources: Pin by Yo! Baba from the Noun Project;  Illustration 107207656 © Miceking—Dreamstime.com, Design by: Juliette Martin)2 Policy Brief #25 www.iiasa.ac.atGovernance innovation for enabling nature-based solutionsUnderstanding the factors that characterized successful nature-based solution governance models is essential for advancing policy instruments and institutional reform that can better enable the implementation and up-scaling of these solutions. The results showed that the most critical nature-based solution enablers involved governance innovation in three areas:  J Polycentric governance: In all cases, novel arrangements emerged in the public administration that involved multiple institutional scales and/or sectors to include not only flood and landslide protection, but also nature conservation, urban planning, water quality, waste management, tourism, recreation, and many more administrative responsibilities. In the Isar-Plan case, as one example, the regional and municipal water authorities collaborated to advocate a far broader vision for the Isar than their customary focus on grey infrastructure for flood protection. This collaboration was initiated by ecologically committed staff members who formed a multi-scale and cross-sectoral work group, which broke down the silos of water and urban planning and was unprecedented for projects of this magnitude.  J Participatory co-design: All three case studies involved novel stakeholder participatory processes that co-determined the eventual shape of the nature-based solution implemented. In Italy, the process was particularly exemplary in that it coupled stakeholders and experts in an unprecedented co-design of a nature-based solution for landslide risk mitigation and fostered the consequent adoption of the solution.   J Financial incentives: In the Wolong case, local authorities designed and implemented novel incentives for households in consultation with villagers for community-based monitoring of illegal logging in a nature reserve. The unique system complemented the traditional ‘sticks’ approach for sanctioning illegal logging with ‘carrots’ in the form of payments to household groups who were successful in preventing logging in their assigned forest areas.Further enablers for realizing nature-based solutions, as demonstrated in the three cases, include strong pressure (advocacy) groups, both in the administrative bodies (all cases) and outside the government (Germany and Italy), along with their individual champions. In addition, all cases included a major triggering event – a flood/landslide event (China and Italy) or a model that simulated a major event (Germany) – which opened a window for already existing environmental groups or supportive state authorities to advocate for a nature-based solution.  The cases provide evidence that nature-based solutions are often viable only if they “piggy-back” on grey solutions. For example, in the case of the Isar-Plan, the compromise was a hybrid solution that partially piggybacked the restoration of the river onto concealed grey flood protection measures.The main governance enablers of nature-based solutions in Wolong, Munich, and Nocera Inferiore (Sources: Illustration 123136911 © Medvedeva Irina - Dreamstime.com, Participation by Vectors Market, Network by Anna Sophie, Flood by Hea Poh Lin, from the Noun Project, Design by: Juliette Martin)POLITICAL  SUPPORT  THROUGH LOCAL  CHAMPIONPOLYCENTRIC ARRANGEMENTSSTAKEHOLDER  ENGAGEMENT  AND CO-DESIGNCOALITION  AND ADVOCACY  GROUPSAWARENESS  RAISED THROUGH  EVENT/MODELGovernance innovation through nature-based solutions 3© Vladvitek | DreamstimeR E F E R E N C E S  A N D U S E F U L  R E S O U R C E S :ZVR 524808900Printed on 100% recycled paper from Austrian production.IIASA Policy Briefs report on research carried out at IIASA and have received only limited review. Views or opinions expressed herein do not necessarily represent those of the institute, its National Member Organizations, or other organizations  supporting the work. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. For any commercial use please contact permissions@iiasa.ac.at.The International Institute for Applied Systems Analysis (IIASA) is an independent,international research institute with National Member Organizations in Africa, theAmericas, Asia, and Europe. Through its research programs and initiatives, theinstitute conducts policy-oriented research into issues that are too large or complex to be solved by a single country or academic discipline. This includes pressing concerns that affect the future of all of humanity, such as climate change, energy security, population aging, and sustainable development. The results of IIASA research and the expertise of its researchers are made available to policymakers in countries around the world to help them produce effective, science-based policies that will enable them to face these challenges.European Commission (2015). Towards an EU Research and Innovation Policy Agenda for Nature-based Solutions & Re-naturing Cities: Final Report of the Horizon 2020 Expert Group on Nature-based Solutions and Re-naturing Cities’. Publications Office of the European Union.Linnerooth-Bayer J, Scolobig A, Ferlisi S, Cascini L, & Thompson M (2016). Expert engagement in participatory processes: translating stakeholder discourses into policy options. Natural Hazards 81 (S1): 69-88 [pure.iiasa.ac.at/11288]Yang W, Dietz T, Liu W, & Liu J (2016). Quantifying human dependence on ecosystem services. In: Pandas and People. Coupling Human and Natural Systems for Sustainability. Eds. Liu, Junguo, Hull, V., Yang, W., Vina, A., Chen, X., Ouyang,  Z. & Zhang, H., pp. 60-71 New York: Oxford University Press  [pure.iiasa.ac.at/11822] Zingraff-Hamed A, Martin J, Lupp G, Linnerooth-Bayer J, & Pauleit S (2019). Designing a Resilient Waterscape Using a Living Lab and catalyzing Polycentric Governance. Landscape Architecture Frontiers 7 (3): 12-31 [pure.iiasa.ac.at/16159]This work formed part of the PHUSICOS Innovation Action project funded by  the EU Horizon 2020 research and innovation program (Grant agreement No. 776681). The main objective of PHUSICOS is to demonstrate that nature-inspired or nature-based solutions for reducing the natural hazard risk of extreme weather events in rural mountain landscapes are technically viable, cost-effective, and implementable at regional scale. This policy brief highlights the results of PHUSICOS Work Package 5, which specifically addresses governance innovation, where governance goes beyond government to involve a network of state and non-state actors (e.g., business, civil society, expert communities) in the process of deciding on and implementing nature-based solutions policy. WP5 partners wish to thank all the colleagues and persons who provided professional advice and collaboration for writing the deliverable - most notably the 47 interviewees in the three case studies. Additionally, this policy brief benefits from the inputs of a World Café discussion held at the PHUSICOS Consortium meeting held in Lucca in October 2019. https://phusicos.eu/The implemented nature-based solutions were accompanied by co-benefits reaching beyond disaster risk reduction that added significantly to their rationale, appeal, and eventual adoption. A major insight from the case studies is thus the importance of merging ‘co-benefit’ agendas. At the global scale, the co-benefits can contribute to major transformative agendas, including: disaster risk reduction as agreed in the 2015 Sendai Framework; climate adaptation as agreed in the 2016 Paris Agreement; biodiversity as set out in the European Biodiversity Strategy; and sustainable development as agreed in the 2015 UN Sustainable Development Goals. From this global perspective, the transition from grey solutions to nature-based solutions is in many instances not only cost-effective and viable, but also necessary and urgent. 4 Policy Brief #25 www.iiasa.ac.at

Governance innovation through nature-based solutions

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