Monsanto Forest Park an auditorium, a space for permanent and occasional exhibitions, and a Centre of Multimedia Resources. Quercus, the largest Portuguese non-profit national environment organization for the conservation of the natural environment, is based in Monsanto Park. The intensive agricultural usage of the soils led to erosion and practically to a destruction of the original vegetation. In the 1930s, the increasing demand for construction areas led Duarte Pacheco, the then Minister for the Public Works of Portugal, to resuscitate an idea from 1868: the reforesting of the then practically bare Serra de Monsanto. The regulation for Monsanto Park was put in place
Monsanto legal cases was beneficial to the conservation of the environment. The federal prosecutor maintained that Monsanto misrepresented the amount of herbicide required and stated that "there is no scientific certainty that soybeans marketed by Monsanto use less herbicide." The presiding judge condemned Monsanto and called the advertisement "abusive and misleading propaganda." The prosecutor held that the goal of the advertising was to prepare the market for the purchase of genetically modified soybean seed (sale of which was then banned) and the herbicide used on it, at a time when the approval of a Brazilian Biosafety Law, enacted in 2005, was being discussed