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 for rainfed agriculture. Starting at the Prime Meridian and heading eastwards, the Tropic of Capricorn passes through 10 countries: The following cities and landmarks are either located near the Tropic of Capricorn, or the tropic passes through them. As the major portion of earth's land is located in the Northern Hemisphere there are only four countries entirely south of the Tropic of Capricorn (there are 74 countries entirely north of the Tropic of Cancer): Length of the Tropic on 11 June 2015, at 23°26′14″S is . Tropic of Capricorn The Tropic of Capricorn (or the Southern Tropic) is the circle