Brazil has enough land to grow more sugarcane for ethanol by 2030 without causing major harm to the environment or food production. The expansion would mainly come from crop and pasture areas, with minimal impact on deforestation. Competition between sugarcane and crops exists, but it doesn't significantly affect food prices. The northern region of Brazil can produce enough food to meet national and international demands. Increasing productivity on existing land can support sugarcane growth without causing issues.