Impacts of the Brazilian railways infrastructure projects on GHG emissions, energy consumption and freight costs of grain transportation: a mathematical model.

José Eduardo Holler Branco1, Daniela Bacchi Bartholomeu1, Paulo Nocera Alves Junior1, José Vicente Caixeta Filho1, José César Cruz Júnior2 and Cassiano Bragagnolo2, (1)Luiz de Queiroz College of Agriculture - University of São Paulo, Economics, Administration and Sociology, Piracicaba, Brazil, (2)Federal University of São Carlos, Economics, Sorocaba, Brazil