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Figure 2.

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Figure 5.

Figure 6.

Figure 7.

Figure 8.

Overview of the main tools classifications, own study
| No. | Inventory | Type of tool/Type of resource | Phase/Stages/Needs | Objective/Adaptation challenges | Climate hazards | Themes/Benefits addressed | Spatial scale | Target group (users) |
|---|---|---|---|---|---|---|---|---|
| 1 | NbS Tools Catalogue | |||||||
| 2 | Nature-based Solutions Resource Guide | |||||||
| 3 | Accelerating Climate Ambition and Impact | |||||||
| 4 | REACHOUT shaping climate resilient cities | |||||||
| 5 | Ecosystem-based Adaptation Tools Navigator | |||||||
| 6 | Research on Ecosystem-based Adaptation | |||||||
| 7 | Tools for developing Green Infrastructure Networks | |||||||
| 8 | Guidance for Greater Manchester | |||||||
| 9 | IUCN Urban Toolbox |
Information on tool inventories to support the introduction of the NbS, own study [25, 26, 32, 34–39]
| No. | Inventory name | Source link | Main theme | Form | Languages | Source of origin | Geographic scope | Numb er of tools | Year of completion |
|---|---|---|---|---|---|---|---|---|---|
| 1 | NbS Tools Catalogue | https://doi.org/10.5281/zenodo.5541252 | Nature-based Solutions | Excel database | English | Netherlands | Europe | 70 | 2020 |
| 2 | Nature-based Solutions Resource Guide Compendium of federal examples, guidance, resource documents, tools, and technical assistance | https://www.preventionweb.net/media/85702/download?startDownload=20250901 | Naturebased Solutions | Document pdf | English | USA | Worldwide | 177 | 2022 |
| 3 | Accelerating Climate Ambition and Impact: Toolkit for mainstreaming Nature Based Solutions into Nationally Determined Contributions | https://climatepromise.undp.org/sites/default/files/research_report_document/Toolkt_for_Mainstreaming_Nature-based_Solutions_into_Nationally_DeterminedContributions.pdf | Naturebased Solutions | Document pdf | English | USA | Worldwide | 114 | 2019 |
| 4 | REACHOUT shaping climate resilient cities | https://reachout-cities.eu/ | Urban resilience | Website | English, Greek, Italian, Norwegian, Spanish, Polish | European Union | European Union | 18 | 2025 |
| 5 | Ecosystem-based Adaptation Tools Navigator: A searchable database of tools and methods relevant to EbA | https://www.adaptationcommunity.net/publications/neweba-tools-navigator-in-english-spanish-and-french/ | Ecosystembased Adaptati on | Excel database and website | English | Germany | Worldwide | 245 | 2019 |
| 6 | Research on Ecosystem-based Adaptation (EbA): A reference guide | https://www.preventionweb.net/publication/research-ecosystem-based-adaptation-eba-reference-guide | Ecosystembased Adaptati on | Document pdf | English | Germany | Worldwide | 12 | 2019 |
| 7 | Tools for developing Green Infrastructure Networks | https://webassets.eurac.edu/31538/1661510195-d-t1-1-2_tools-for-developing-green-infrastructure-networks.pdf | Green infrastructure | Document pdf | English | Italy | European Union | 20 | 2020 |
| 8 | Guidance for Greater Manchester – Embedding Green Infrastructure Principles | https://greatermanchesterca.gov.uk/GMCAFiles/PFE/Supporting% 20documents/07%20Greener%20Places/07.01.02%20Guidance%20for%20Greater%20Manchester%20-%20Embedding%20Green%20Infrastructure%20 Principles.pdf | Green infrastructure | Document pdf | English | United Kingdom | United Kingdom | 15 | 2019 |
| 9 | IUCN Urban Toolbox: A catalogue of knowledge products on urban biodiversity | https://iucn.org/sites/default/files/2023-11/iucn-urban-tool-box_final_compressed-compresso_0.pdf | Urban biodiversity | Document pdf | English | Switzerland | Worldwide | 11 | 2023 |