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Floods can be defined as one of the most frequent and destructive disasters, that cause significant damage to people, while droughts present significant challenges, primarily to the most vulnerable communities. In consequence, not only public policies but the increased participation of communities and other sectors are crucial to manage the risk in the face of both phenomena and contribute to the construction of resilient communities. At the request of the National Water Commission of Mexico (CONAGUA) for the Regional Water Plan (PHR), we designed and applied a methodology based on a web-based consultation in conjunction with digital survey tools to understand the opinion of communities, key participants, and researchers about these phenomena. The workshops were organized in the five municipalities of Baja California Sur. Then, we performed an interdisciplinary analysis that combined hydrological considerations with the most critical social, economic, environmental, and legal components, applying the PESTEL (Political, Economic, Social, Technological, Environmental, and Legal) analysis. The results indicate that there is a clear and widespread awareness that floods and droughts increase the risk to the livelihoods of the population; however, there are deficiencies in different areas, which complicates risk management. Timely distribution of information and the inclusion of communities in mitigation and adaptation proposals would allow the achievement of greater success with efforts to minimize vulnerabilities and increase the resilience of the population in the face of climate extremes. This must be a collaborative work of the entire society: governmental, social, and private stakeholders. [ABSTRACT FROM AUTHOR]

The impacts of climate change put pressure onto environmental and natural resources, which in turn increases the vulnerability of ecosystems and human communities. This makes social participation essential for biodiversity conservation. This article addresses the community perceptions of the adaptations made to climate change in the El Vizcaino Biosphere Reserve (REBIVI), in Baja California Sur (Mexico), one of the largest natural protected areas in Latin America. Workshops with local communities defined the Socio-ecological Assets for Conservation (SEACs) and prioritized the adaptation strategies and actions by multicriteria analysis. The conclusions point out that a combination of ecosystem-based adaptation (EbA) and communities-based adaptation (CbA) is the most appropriate pathway to affront the adverse impacts of climate change. Thus, a socioecological approach for land and biodiversity use planning has to be implemented if both human welfare and conservation are to be effectively promoted. The process is necessary and very important, as is the participation of the local residents in the implementation and monitoring of the adaptation actions. [ABSTRACT FROM AUTHOR]

Climate change has resulted in severe consequences of hydrometeorological phenomena. The municipality of Los Cabos, Mexico, has been the most affected in the state of Baja California Sur by these hazards due to its location on the southern tip of the peninsula, being exposed with approximately 192 km of coastline; it is an environmental heritage that has made the area a primary tourist attraction in Mexico, which has caused a rapid growth in population with little knowledge about cyclone activity. In addition, there is limited knowledge regarding social indicators that measure vulnerability due to tropical cyclones. Based on the above, the objective of this study was to capture community perceptions about vulnerability related to tropical cyclones and to compare the results with real impacts and their index of socioenvironmental vulnerability, which includes indicators of exposure, sensitivity, and adaptive capacity, to provide useful information to form strategies to mitigate risk. Data were collected through a questionnaire-survey in 335 randomly selected households; we applied a probability model to the perception analysis and calculated an index to categorize vulnerability. We found differences between perceptions and real affectations, with 64% of households categorized as being highly vulnerable to tropical cyclones, and we detected a lower perception about damage suffered to their households. The variables related to knowledge and local or foreigner status were predictors of vulnerability perception. We included georeferenced data on flooding hazard maps as a strategy for adaptation. [ABSTRACT FROM AUTHOR]

Coastal cities have seen an unprecedented growth with regional settlements due to development activities; that is why measures are needed to mitigate risk of adverse events such as tropical cyclones. Baja California Sur, a state known as a relevant ecological and tourist region, includes destinations such as Cabo San Lucas and La Paz, impacted yearly by tropical cyclones, so it is important to design contingency plans and provide available information to the residents. Los Cabos municipality has the highest population growth rate and its inhabitants are more susceptible to adverse events; despite this, there were no indicators of social and ecological vulnerability to risk effects of tropical cyclones. The objective of this research is to calculate the socio-environmental vulnerability of households through an index to identify risk factors. We have obtained a classification according to levels of vulnerability, and the results have shown that 74% of the households are high on the vulnerability scale, 21% of households are moderately vulnerable and only the remaining 5% of households are less vulnerable. In conclusion, the devastating effects of hydrometeorological events were mainly due to a lack of knowledge regarding such events among inhabitants. [ABSTRACT FROM AUTHOR]