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Nature’s contribution to adaptation: insights from examples of the transformation of social-ecological systems
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Edité par CCSD ; Taylor & Francis -
International audience. Transformation of social-ecological systems due to climate change requires, transformative adaptation responses. We propose the concept of nature's contribution to adaptation (NCA; previously called adaptation services), to reveal properties of ecosystems that provide options for future livelihoods and adaptation to transformative change. Knowledge about the capacity of ecosystems to supply NCA can inform decisions by revealing options for adaptation. We analysed eight historical and contemporary case studies of transformative adaptation and found that the five cases with medium-high degree of adaptation and use of NCA showed evidence of participative learning and co-production of adaptation options, low values contestation, low power imbalances and well-developed governance arrangements. These variables indicated that communities engaged in adaptation had ownership and agency to change how they thought and acted to implement transformative adaptation. We found the use of NCAs enabled transformative adaptation by helping people overcome current decision constraints imposed by societal values, institutional rules, or knowledge deficits to create novel options and re-frame decision contexts. The NCA concept can be applied to (1) help resolve uncertainties about nature's contributions to people under environmental change; (2) reveal ecosystem properties of value for adaptation, but which are marginalised in current, dominant knowledge frameworks and decision-making; (3) act as a 'boundary object' for participative learning and co-production of adaptation options. Thus, the NCA concept represents a pragmatic, optimistic approach for societal adaptation to ecosystem transformation, countering feelings of despair that accompany the acceptance of irreversible, unavoidable loss of current ecosystem states and associated nature's contributions to people.
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