Deforestation of the Amazon rainforest The completion of the roads was followed by a wave of resettlement; these settlers had a significant effect on the forest as well. Research conducted by Leydimere Oliveira et al. has shown that the more rainforest is logged in the Amazon, the less precipitation reaches the area and so the lower the yield per hectare becomes. Thus for Brazil as a whole, there is no economic gain to be made by logging and selling trees and using the logged land for pastoral purposes. A September 2016 Amazon Watch report concludes that imports of crude oil by the US are driving
Deforestation of the Amazon rainforest works (such as highways and smaller roads) and medicines. A 2009 Greenpeace report found that the cattle sector in the Brazilian Amazon, supported by the international beef and leather trades, was responsible for about 80% of all deforestation in the region, or about 14% of the world's total annual deforestation, making it the largest single driver of deforestation in the world. According to a 2006 report by the Food and Agriculture Organization of the United Nations, 70% of formerly forested land in the Amazon, and 91% of land deforested since 1970, is used for livestock pasture. Additional deforestation in the