![]() 14 Furthermore, at least some works integrating local knowledge with scientific information report an overlap between observations made from both knowledge systems. 10 – 13 Such observations relate to changes observed in the local climatic system, as well as in the physical, the biological, and the socioeconomic systems, all of which are directly affected by climatic changes. 8, 9 Indeed, recent studies document that -throughout the world- people with a long history of interaction with their environment, hereafter local peoples, have developed intricate and complex systems of first-hand knowledge not only of weather and climate variability, but also of climate change. 2, 6, 7 In such context, some research proposes tapping into local knowledge as a place-based tool to ground-truth climate models and narrow their geographic sensitivity. 3, 4 However, the myriad of uncertainties entailed by the downscaling process and techniques (e.g., climate interpolations, limited weather station coverage) 5 has evidenced the need for more detailed, fine-scale, and local observations of climate change. 1, 2 For this reason, global models assessing climate change are often downscaled to specific settings, to provide a more suitable resolution for adaptation planning. ![]() Our results suggest that, even if local observations of climate change are the most frequently reported type of change, the rich and fine-grained knowledge in relation to impacts on biophysical systems could provide more original contributions to our understanding of climate change at local scale.Ĭlimate models are very effective at providing global information on climate change yet, over recent years, their ability detecting impacts at the local scale has been deeply questioned. On the 98 case studies documented, we recorded the mention of 746 local indicators of climate change, mostly corresponding to local observations of climate change (40%), but also to observed impacts on the physical (23%), the biological (19%), and the socioeconomic (18%) systems. Overall, primary data on the topic are not abundant, the methodological development is incipient, and the geographical extent is unbalanced. With this aim, we conducted a systematic, quantitative meta-analysis of published peer-reviewed documents reporting local indicators of climate change (including both local observations of climate change and observed impacts on the biophysical and the social systems). ![]() To assess the potential role of local knowledge in our quest to understand better climate change and its impacts, we first need to critically review the strengths and weaknesses of local knowledge of climate change and the potential complementarity with scientific knowledge. ![]() Local knowledge has been proposed as a place-based tool to ground-truth climate models and to narrow their geographic sensitivity. ![]()
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