Geography of Brazil clearing. Public policies intended to promote sustainable management of timber extraction, as well as sustainable use of nontimber forest products (such as rubber, Brazil nuts, fruits, seeds, oils, and vines), were being discussed intensely in the mid-1990s. However, implementing the principles of sustainable development, without irreversible damage to the environment, proved to be more challenging than establishing international agreements about them. Although 90% of the country is within the tropical zone, the climate of Brazil varies considerably from the mostly tropical North (the equator traverses the mouth of the Amazon) to temperate zones below the Tropic of Capricorn (23°27' S
Tropic of Capricorn (novel) with "Tropic of Cancer", were boosted by the controversy surrounding their censorship, with complaints against Miller and his publisher on charges of pornography. In the 1940s and 1950s, Miller’s books were hard to find and expensive. The banned books were occasionally smuggled into the US, although they were often seized by Customs. In 1944, accompanied by his soon-to-be third wife Janina Martha Lepska, Miller read excerpts from "Tropic of Capricorn" and "Black Spring" at the Library of Congress in Washington, DC. "Tropic of Capricorn" was banned in the United States until a 1961 Justice Department ruling declared that its contents