Mascareño, A., R. Cordero, G. Azócar, M. Billi, P. A. Henríquez, and G. A. Ruz. 2018. Controversies in social-ecological systems: lessons from a major red tide crisis on Chiloe Island, Chile. Ecology and Society 23(4):15. https://doi.org/10.5751/ES-10300-230415

Deep structural transformations aimed at strengthening climate action and community participation are occurring in Chile, especially after the social unrest of October 2019. The ongoing political crisis has even generated the unprecedented possibility of writing a new constitution through an entirely democratic process. This article explores to what extent these structural transformations are also associated with cognitive and relational changes in the population, especially in terms of community participation. An online survey (n = 1.117) was applied to people over 18 years old in Punta Arenas in November 2020. This is the southernmost city of the American continent, one of the areas most affected by climate change, highly isolated from the rest of the country, and with a strong regional ecological identity. Results show that climate change is perceived as the main environmental problem affecting the city, with multiple negative consequences, but also with some potentially positive impacts. At the same time, environmental and constitutional expectations suggest the state of the environment is deemed to be critical for the future of the city. However, a traditional top-down understanding of community participation still prevails as most participants perceive the citizens’ role in dealing with environmental issues as limited to individual, passive, and reactive actions, or reduced to being responsible consumers. These results show that transforming institutions, rules and regulations alone does not guarantee a broader engagement of local communities in more ambitious, committed, and lasting climate action, even with a high climate change concern in the population. Creating strategies aimed at more profound cognitive and relational changes from a bottom-up perspective will also be necessary to avoid negative transformation trajectories.

Hasta la fecha, en América Latina, las investigaciones sobre las dimensiones humanas del cambio climático son aún escasas. Para aportar a este campo, se realizó un estudio de segmentación de audiencia en Chile, que buscó explorar distintas perspectivas sobre este tema, utilizando datos de una Encuesta Nacional (n = 2170). Los resultados mostraron que la mayoría de los chilenos expresan altos niveles de preocupación y están de acuerdo en que el cambio climático está sucediendo y es causado principalmente por acciones humanas. Por otro lado, se encontraron diferencias en cosmovisiones, comportamientos, y percepciones de control, entre otros factores, permitiendo la identificación de tres grupos: pragmáticos, neoliberales y ambientalistas. Estos resultados pueden contribuir a diseñar estrategias de comunicación más efectivas para aumentar la concienciación y la acción climática.

Wildland fires are a phenomenon of broad interest due to their relationship with climate change. The impacts of climate change are related to a greater frequency and intensity of wildland fires. In this context, megafires have become a phenomenon of particular concern. In this study, we develop a model of ignition risk. We use factors such as human activity, geographic, topographic, and land cover variables to develop a bagged decision tree model. The study area corresponds to the Maule region in Chile, a large zone with a Mediterranean climate. This area was affected by a megafire in 2017. After generating the model, we compared three interface zones, analyzing the scar and the occurrences of ignition during and after the megafire. For the construction of georeferenced data, we used the geographic information system QGIS. The results show a model with high fit goodness that can be replicated in other areas. Fewer ignitions are observed after the megafire, a high recovery of urban infrastructure, and a slow recovery of forest plantations. It is feasible to interpret that the lower number of ignitions observed in the 2019–2020 season is a consequence of the megafire scar. It is crucial to remember that the risk of ignition will increase as forest crops recover. Wildland fire management requires integrating this information into decision-making processes if we consider that the impacts of climate change persist in the area.