Deforestation is one of the worlds biggest problems and most the trees that were cut down weren't replanted.
The resson for most of the diforestation is the people cut down tree to make the houses we live in today and for the fields that we crow the food that we eat in over all most of the deforestation happens so that we can live.
The deforestation in brazil started in 1940s.
The company Vargas started this in 1940 January 23erd
In brazil in the amazon rainforest