The release of this report on palms, cotton, corn and jatropha – agricultural crops used or potentially useful to the production of biodiesel or ethanol – marks another step in the investigation work of Repórter Brasil. Readers will encounter in these pages analysis, case studies and reports on the socio-economic, environmental, land related and labour related impacts, as well as those that weigh over indigenous and non-indigenous traditional populations, caused by the agricultural crops that might expand due to the boom of biofuels.