The geography of South America contains many diverse regions and climates. Geographically, South America is generally considered a continent forming the southern portion of the landmass of the Americas, south and east of the Colombia–Panama border by most authorities, or south and east of the Panama Canal by some. South and North America are sometimes considered a single continent or supercontinent, while constituent regions are infrequently considered subcontinents.
South America became attached to North America only recently (geologically speaking) with the formation of the Isthmus of Panama some 3 million years ago, which resulted in the Great American Interchange. The Andes, likewise a comparatively young and seismically restless mountain range, runs down the western edge of the continent; the land to the east of the northern Andes is largely tropical rainforest, the vast Amazon River basin. The continent also contains drier regions such as eastern Patagonia and the extremely arid Atacama Desert.
The South American continent also includes various islands, most of which belong to countries on the continent. The Caribbean territories are grouped with North America. The South American nations that border the Caribbean Sea — Colombia and Venezuela —are also known as the Caribbean South America.
The geographical structure of South America is deceptively simple for a continent-sized landmass. The continent's topography is often likened to a huge bowl owing to its flat interior almost ringed by tall mountains. With the exception of narrow coastal plains on the Pacific and Atlantic oceans, there are three main topographic features: the Andes, a central lowland, and the extensive Brazilian and Guiana Highlands in the east.
The Andes are a Cenozoic mountain range formed (and still forming) Altiplano and a number of major valleys such as the Rio Magdalena. These contain three of the world's highest capitals: Bogotá, Quito and highest of all, La Paz, Bolivia. The southernmost Andes hosts the Southern Patagonian Ice Field are lower and narrower.
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The Andes (ˈændiːz ), Andes Mountains or Andean Mountain Range (Cordillera de los Andes; Anti) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S latitude), and has an average height of about . The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.
Martinique (ˌmɑːrtᵻˈniːk , maʁtinik; Matinik or Matnik; Kalinago: Madinina or Madiana) is an island which is a single territorial collectivity of the French Republic. It is also part of the European Union as an Outermost Region within the Special territories of members of the European Economic Area, but is not part of the Schengen Area and the European Union Customs Union. As part of the French (Antilles) West Indies, Martinique is located in the Lesser Antilles of the West Indies in the eastern Caribbean Sea.
French Guiana (ɡiˈɑːnə or ɡiˈænə; Guyane ɡɥijan; Lagwiyann la.ɡɥi.jãn) is an overseas department of France located on the northern coast of South America in the Guianas. Bordered by Suriname to the west and Brazil to the east and south, French Guiana covers a land area of , and is inhabited by 301,099 people. French Guiana is the second-largest region of France (more than one-seventh the size of Metropolitan France) and the largest outermost region within the European Union. It has a very low population density, with only .
Climate is the long-term weather pattern in a region, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation. In a broader sense, climate is the state of the components of the climate system, including the atmosphere, hydrosphere, cryosphere, lithosphere and biosphere and the interactions between them.
Sustainable forest management (SFM) is the management of forests according to the principles of sustainable development. Sustainable forest management has to keep the balance between three main pillars: ecological, economic and socio-cultural. Sustainable forestry can seem contradicting to some individuals as the act of logging trees is not sustainable. However, the goal of sustainable forestry is to allow for a balance to be found between ethical forestry and maintaining biodiversity through the means of maintaining natural patterns of disturbance and regeneration.
Seismology (saɪzˈmɒlədʒi,_saɪs-; from Ancient Greek σεισμός (seismós) meaning "earthquake" and -λογία (-logía) meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the propagation of elastic waves through the Earth or other planetary bodies. It also includes studies of earthquake environmental effects such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, glacial, fluvial, oceanic, atmospheric, and artificial processes such as explosions.