Flooding due to climate change is recurrent and has intensified in the lower course of the Coyuca River. This paper implements a multivariate analysis, including conditioning and triggering factors to develop flood susceptibility mapping in an information-deprived region to help prevent/mitigate flooding. Flood-susceptible areas were identified using the multi-criteria decision analysis (MCDA) methodology, specifically, with the hierarchy analysis process (AHP). Four conditioning and one triggering influence factors were analyzed. The influence weights of each variable were determined using Saaty’s methodology (AHP). Thematic maps for each variable were created and multiplied by their influence value using the raster calculator and added to their variable group to obtain the flood susceptibility map. The findings showed that the susceptibility to flooding was very high in 41.82%, high in 35.95%, medium in 21.25% and low in 0.98% of the study areas. It was revealed that 44.44% of the localities occupy areas of very high susceptibility to flooding. Susceptibility increases in the localities closest to the river.

Air pollution is a global environmental problem that affects the population. This work demonstrates the perception of air quality by the population of the urban area of the municipality of Acapulco, Guerrero, Mexico. To meet the objective, a survey of 36 questions was applied to a sample of 382 people living in the main crossing points of vehicles, where there is more traffic and more severe pollutant concentration problems. We decided to apply the grouping method within a radius of 500 m around the selected intersections, where 95% of the respondents are aware that the air they breathe has a certain degree of contamination.

La conservación de los manglares es fundamental dentro de los ecosistemas costeros debido a su importancia ambiental, ecológica y económica. El objetivo de esta investigación es proponer una actualización de la cobertura vegetal de manglar desde una perspectiva local para fomentar su conservación en la laguna de Coyuca, municipio de Coyuca de Benítez, México. Como estrategia para recolectar información; se realizaron diálogos de saberes, recorridos y navegaciones en la laguna, se utilizaron imágenes satelitales y vuelos de vehículos no tripulados para evaluar la ganancia de manglar en la zona. Los resultados de esta investigación revelan un panorama favorable en cuanto a la necesidad de conservar el manglar, así como las acciones que las comunidades del embarcadero han implementado de manera descentralizada y autogestionada. Se ha detectado un aumento de 116.86 hectáreas de manglar en 2022. Sin embargo, aún existen brechas por cerrar, como la necesidad de visibilizar la gestión comunitaria para la conservación del manglar, actualizar los conocimientos sobre biodiversidad y fortalecer la conservación a través de procesos cooperativos y participativos. Se propone actualizar los datos sobre la cobertura vegetal de manglar y diseñar estrategias que promuevan la participación comunitaria y la gestión sostenible de este ecosistema.

The objective of this research was to assess the effects of a training process on environmental thinking of teachers at a private university. We worked with the methodology of social representations, mixed approach, in a sample of 20 teachers. Data were analyzed using frequency tables and graphs, content analysis and natural semantic networks. The results show that teachers share reduced, anthropocentric-technical and globalizing social representations. The representation field focuses on nature, its care and administration. This research has implications for teaching; it demonstrated the importance of developing training processes for an adequate approach to environmental and sustainability issues in a teaching team. A limitation of the research was found in the contingency conditions due to the COVID-19 pandemic. The study concludes that updating processes on environmental issues are a resource to enrich teachers' ideas and arouse their interest in education for sustainable development.