Murilo Noli Da Fonseca, Luciene Pimentel da Silva (p), Ketlyn da Cunha Roque, Ana Luiza de Castilho Pogogelski, Carolina Fiori Gradia Lima

Mónica Marcela Suárez Pradilla

This research seeks to evaluate the perception and communication of risk of urban flooding in areas of socio-environmental vulnerability. The study was applied in the Vila Torres community, located in the city of Curitiba, capital of the State of Paraná, southern Brazil, in a pilot format. The community contains around 7,000 inhabitants, of which 70% are economically dependent on recycling. The largest share of young people has low education and/or is unemployed. In the case of natural hazards, the community is often affected by flooding, flooding and erosion. According to Curitiba’s Municipal Plan for Mitigation and Adaptation to Climate Change (PanClima), Vila Torres is located in areas at high risk of heat waves, landslides, flooding and flooding in the scenarios predicted for 2030, 2050 and 2100. For this purpose, the application of a questionnaire was used as a methodological procedure, which contains 24 questions evaluated and corroborated by Latin American researchers through the Delphi method. In this sense, the present study has at least three important contributions. First, the degree of flood risk perception is mainly influenced by gender, experience and knowledge of the phenomenon. Second, social capital makes up for the absence of the State in providing information and communicating risk to citizens. Third, the interviewees feel the need to obtain more information about the risks and, for this, the most appropriate means of communication are sound car, loudspeaker, siren and signaling in the community. As limitations, this perception analysis was carried out as a pilot and, therefore, was based on only a small sample. In addition, it was found that the questions were not well understood by participants without schooling.

Claudio Carrasco (p), Massimo Palme, Jorge Valenzuela, Héctor Mora

Luciene Pimentel

The urbanization of the natural landscape implies changes both in its spatial conformation and in its surface materials, and modifies the energy balance. This phenomenon gives rise to the urban climate, whose main characteristic is the positive temperature difference with the rural environment: a phenomenon known as Urban Heat Island, which favors the increase in energy consumption in buildings, affects air quality, well-being, and the health of the inhabitants. Due to extreme situations such as heat waves, climate change is expected to intensify UHI conditions. Ways to mitigate this effect are urgently sought. The objective of this research is to determine the impact caused by the implementation of green roofs and facades, on urban surface temperatures and air temperature at pedestrian level, in the cities of Valparaíso and Rancagua, located in a Mediterranean climate in the central zone of Chili. Satellite images and the ENVI-met software are used to determine the urban thermal behavior and the impact of implementation of green roofs and façades. A difference of up to 0.8°C is observed in the air temperature at the pedestrian level, between the scenario whose buildings do not have green coverage and one with 100% green coverage implemented. Regarding the green facades, a difference of up to 2°C is observed in the air temperature at the pedestrian level, between facades with 100% vegetation compared to one that does not have green facades. Green facades and green roofs have positive effects mitigating urban air heating and a decrease in temperatures inside the canyon, promoting greater thermal comfort for pedestrians.

Mónica Marcela Suárez Pradilla (p), Nohra Rodriguez (p), Juan Eduardo Chica-Mejía, Vasco Barbosa

Claudio Carrasco

Climate change is one of the greatest global challenges facing humanity in the current century. Research shows that the impacts of climate change are not the same for every country and region. In particular, the countries of the global south have unpredictable and different climatic conditions that require effective public policies for adaptation and mitigation. In most of these countries, the institutional framework is neither organised nor efficiently coordinated to respond to the impacts of climate change on the different economic sectors and communities. In Colombia, public environmental policy is implemented by the Ministry of Environment and Sustainable Development, and focuses on providing guidelines for planning, protection, prevention and control in the management of natural resources to solve the country's environmental needs and problems. However, the policy is not clear regarding the increase in atmospheric temperature, the rise in sea level, the reduction and instability of the precipitation regime, elements of climate change that can generate adverse impacts on ecosystem services, economic activity and the well-being of the population.
Colombia's public policy approach to climate change promotes management to advance on a climate-resilient and low-carbon development path that reduces the risks associated with alterations due to the effects of climate change, which is articulated with the public and private decisions involved in the country's development; but it is not clear to what extent the environmental policy guidelines are considered in those of climate change. Therefore, the objective of this paper is to identify the challenges posed by climate change from the environmental policy discourse for Colombia in terms of public policy. It also seeks to identify the importance of ENVIRONMENTAL POLICIES in the national sustainable development agenda and in climate change mitigation and adaptation measures. A methodology is proposed in which, based on an exhaustive review of the urban-regional instruments of environmental and climate change policy, elements of convergence and divergence of the two policies are identified and their possible articulation that contributes to decision-making and the elaboration of realistic climate action plans with the complex territories where they are to be implemented. Consequently, a hierarchical analysis type multi-criteria decision-making method is proposed to identify the levels of weighting of the interrelationship between elements of environmental and climate change policy for Colombia.