Forest Ruins is a personal ongoing project that addresses the role of cities in the climate crisis from the perspective of the Guarani Mbyá Indigenous people in the city of São Paulo, Brazil, and how their philosophy, culture and traditions offer alternative paths of existence and resistance to a colonial development model. São Paulo is located in the Atlantic Rainforest, a biome that has only 20% of its original area. One of the few remaining areas in the city is located in the 492-ha reserve of Jaragua Peak,  which is home to 700 Mbyá indigenous people, organized in 6 villages, and it is the smallest demarcated indigenous land in the country. Telling the unrevealed story of the Guaranis on the edges of the largest city on the continent is a provoking reminder for Western culture to rethink its consumption habits, to look back at its rivers, areas of preservation and degradation as the environment in which they are inserted. I started this research 2 years ago with the support of National Geographic Society and a selection of the images produced were published on NatGeo’s and in the book RED FLAG, winner of the World Press Photo 2021 Book Award.