DETER system, managed by the Brazilian National Space Research Institute (INPE) detected a near five-fold increase of deforestation in May 2013, compared to the same month year earlier: from 99 to 465  square kilometers. Most of deforestation, 59 percent, occurred in the state of Mato Grosso, where large-scale farms and cattle ranching drive most deforestation. Pará accounted for around a third of deforestation (29 percent).

 The recent data released by INPE confirm a report issued last month by the Brazilian NGO Imazon, alerting  a new grow of deforestation, from 873 square kilometers 2011-2012 to 1,654 sq km in 2012-2013. The coming-back deforestation is probably due to the relaxation of the country's Forest Code, which limits how much forest can be cleared on private lands in the Amazon. An other reason could be the rise of agricultural export after the Brazilian currency (Real) weakened since April 2013, making national products more competitive in the global market.