New data provided by researchers from the University of São Paulo, the Federal University of Minas Gerais, and environmental groups like the Climate Observatory showed that the Ferrogrão railroad, a 933-kilometer project linking Mato Grosso’s grain-producing region to Atlantic ports, could cause significantly greater environmental damage than previously estimated. The study criticizes the government’s feasibility analysis, conducted under former President Jair Bolsonaro, for underestimating deforestation risks and cumulative impacts, especially in the Amazon rainforest and indigenous areas.