City in Motion #8: Urban Tree Planting
According to data from the São Paulo City Hall, 26% of the city's territory is composed of areas designated for environmental preservation. The presence of vegetation plays a crucial role in mitigating issues such as flooding, air pollution, and heat islands, while also providing psychological benefits to the population. However, experts agree that the current level of urban greening in São Paulo is insufficient and inadequately managed. Problems like flooding, heat islands, and power outages due to falling trees continue to persist. Helena Ribeiro, a professor at the Faculty of Public Health at USP, emphasizes the significance of trees in shaping the atmospheric environment, which pertains to climate aspects and air composition. Urban greening serves as a filter for airborne pollutants and helps reduce pollution levels. The phenomenon of heat islands, where urban areas with less vegetation experience higher temperatures compared to greener neighborhoods, is also evident in São Paulo. Additionally, the condition of sidewalks in the city hinders proper tree planting due to the presence of concrete that restricts root growth and can lead to structural damage. Professor Demóstenes suggests that innovative technological solutions, such as permeable pavements, could address issues of flooding and energy outages while allowing for suitable tree growth. These solutions, although used abroad, have yet to be implemented in Brazil. This episode of "Cidade em Movimento" features insights from professors Henrique Ferreira and Helena Ribeiro, discussing urban issues and potential solutions. More information on urban problems and solutions can be found at jornal.usp.br.