Step 6: Evaluate Solutions

Short Definition

This step focuses on the structured evaluation of Nature-based Solutions (NbS) to measure their effectiveness across environmental, social, and economic dimensions. By combining scientific assessment with stakeholder reflection, the Living Lab determines how well the tested solutions meet their objectives and whether they can be replicated or scaled. Evaluation closes the feedback loop, transforming lessons learned into continuous improvement.

Extended Methodology Explanation

Evaluation is an essential stage of the Living Lab cycle, turning monitoring data and lived experiences into knowledge. It ensures that the implemented NbS are not only technically sound but also socially just, economically feasible, and ecologically resilient.

1. Purpose and Timing of Evaluation
Evaluation takes place once sufficient data have been collected from the testing phase. It assesses both the outcomes (what changed) and the processes (how the change occurred). The goal is to understand which solutions worked best, under what conditions, and why.

2. Multi-dimensional Assessment
Adopt a holistic approach that integrates three main dimensions:

• Environmental performance: biodiversity recovery, ecosystem health, water quality, and climate adaptation benefits.

• Social impact: stakeholder engagement, inclusivity, wellbeing, and knowledge exchange outcomes.

• Economic value: cost-efficiency, return on investment, and potential for sustainable business or policy uptake.

3. Analytical Tools and Frameworks
Use structured evaluation tools to ensure consistency and comparability:

• Multi-Criteria Analysis (MCA): to weigh and score different performance criteria according to stakeholder priorities.

• Ecosystem Service Valuation: to estimate the tangible and intangible benefits provided by the NbS, such as carbon sequestration or flood protection.

• Cost–Benefit Analysis (CBA): to compare the overall benefits and costs of interventions, including avoided damages.

• Social Impact Assessment: to evaluate perceptions, behavioral change, and community benefits.

4. Participatory Co-evaluation
Bring all members of the Community of Practice together to discuss results, share perspectives, and co-interpret findings. This participatory approach ensures that evaluation is not just a technical exercise but a learning process that values experiential knowledge alongside scientific data.

5. Synthesis and Reporting
Summarize findings into concise, visual evaluation reports. Include key metrics, comparative results, and recommendations for improvement. Transparent communication builds credibility and encourages adoption of the results by decision-makers and local communities alike.

6. Feedback and Continuous Learning
Use evaluation outcomes as a feedback loop for refining future designs, management strategies, and monitoring systems. Lessons learned are fed back into the Living Lab cycle, supporting ongoing innovation and adaptation. This iterative process ensures that the Living Lab remains dynamic and responsive to emerging challenges.

Through evaluation, the Living Lab transforms data into insight and experience into evidence — strengthening its scientific credibility and long-term sustainability.