In the favela districts surrounding the Brazilian capital, Brasília, heat is becoming an increasingly serious threat to public health. Experts link this to global inequality in access to green spaces: poorer neighborhoods have far fewer parks, trees, and other natural features capable of lowering air temperatures and mitigating the effects of climate change. Due to dense construction and a lack of shade, temperatures in the favelas are often higher than in more affluent parts of the city, raising the risk of heatstroke and other illnesses, especially among the elderly and children. With limited government support, local residents have begun seeking solutions on their own. Many have started planting trees, shrubs, and other vegetation in yards and public areas, creating a kind of "green islands" that help lower temperatures and improve the local microclimate. Such initiatives not only make life more comfortable but also strengthen a sense of community among residents, uniting them around a shared goal. Experts note that such grassroots greening projects are becoming an increasingly common response to climate challenges in developing countries, where state programs for climate adaptation often fail to keep pace with urbanization and rising temperatures. The case of Brasília shows how local communities can take the initiative in tackling the consequences of global warming, compensating for the lack of systemic support with their own efforts.