"EL COBRE ES CHILENO Y DEBE SER REFINADO EN CHILE" (Por Carlos Tomic E.) | Comité de Defensa y Recuperación del Cobre Chile exporta anualmente 1 millón de toneladas de cobre fino contenido en concentrados de cobre, equivalentes a 3 millones de toneladas de concentrados que se venden al exterior sin fundir ni refinar, y que son procesados en fundiciones y refinerías del extranjero, transformándolos en cobre electrolítico a cambio de importantes descuentos que se aplican al precio del cobre fino contenido. Pero eso no es todo. Si Chile no actúa con prontitud y decisión para corregir este cuello de botella que perjudica seriamente sus ingresos por exportaciones de cobre, dentro de los próximos 4 o 5 años se verá forzado a conceder descuentos de precio equivalentes a US$ 1.500 millones de dólares anuales, una vez que se inicie la producción de concentrados proveniente de nuevos yacimientos, más las ampliaciones de otros ya existentes. Actualmente es más rentable para el propietario de un yacimiento en Chile producir concentrados de cobre que cobre electrolítico.
Rainforest Coloring Pages and Activities for Kids Color in your favorite rainforest birds, mammals, reptiles and plants in our coloring book, or teach yourself about the rainforest with our fun experiments, crafts, and quizzes. Coloring Pages: Amphibians Birds Insects Mammals Plants Reptiles Hands-On Projects from The Remarkable Rainforest Teach yourself about the rainforest with experiments, crafts, and quizzes. These activities are reprinted from The Remarkable Rainforest by Toni Albert, © 1994 by Toni Albert. If you order this book directly from the publishers at 800-353-2791, mention the Rainforest Alliance.
News: Rain Forest For centuries, humans have relied on rain forests for a variety of products. Foods such as tomatoes, peppers, corn, rice, coconuts, bananas, coffee, cocoa, tapioca, beans, and sweet potatoes all originally came from the rain forest. Many civilizations have exploited the timber in rain forests and cleared the land for farms. Destructive Activities Unfortunately, human activities have taken a toll on the rain forest. Farming. Cattle ranching also poses a danger to rain forests. Logging. Other activities. Destruction Aftermath The effects of rain-forest destruction are far-reaching, and in many cases are impossible for scientists to assess and to predict. Soil and erosion. Flora and fauna. Climate. Copyright © 2002 Grolier Incorporated.
'Deadly' trans-Amazon railway sparks fear among rainforest tribes This railway is evil and it threatens our people. For us Indians and our uncontacted relatives this project represents a deadly danger which would put an end to our forest and our lives! A controversial $30 billion mega-project to build a transcontinental railway from the Atlantic to the Pacific has caused fear and outrage among the indigenous peoples of the Amazon. The 5,300 km railway, which was unveiled last month by Chinese Premier Li Keqiang on an official visit to Brasilia, would link Brazil's Atlantic coast with a Pacific port in Peru, enabling the bulk export of agricultural commodities like soy, corn and beef, from Brazil, along with iron ore, other minerals, logs and sawn timber. Operating in the reverse direction, it would provide a rapid conduit for Chinese exports of manufactured goods into lucrative Brazilian, Paraguayan, Uruguayan and Argentinan markets. Ninawá Kaxinawá, an indigenous leader whose community lives near the proposed railway line, told Survival International:
solar 32k 3d 3ds This detailed 3d model comes equipped with two superposed textures, one by day and other one by night with his respective lights. Easy to use, only it needs to move the solar light towards where it is wished and automatic in the shaded part there were activated the lights of the night cities. · Ultra high definition textures.· Ready to render.· Scene lights add.· POLY COUNT can be edited.· Land day/night textures· Atmosphere materials.· Standard Lighting settings (Deflaut render, Cloud Shadow map.)· 32k Textures (32000 x 16000)· Dynamic day/night shader.· High quality fast render.· The number of polygons can be reduced with turbosmooth settings. The scene contains: -4 Spheres·Earth Layer (Day Surface Map, Night Surface texture.) - 3 Textures:·Day Surface Map (32000x16000 px) (Tif format)·Night Surface Map (32000x16000 px) (Tif format)·Cloud Map (16000x8192 px) / Tileable. - 4 Materials No external plugins, deflaut render.
Rain Forest Threats, Rain Forest Species More than half of Earth’s rain forests have already been lost forever to the insatiable human demand for wood and arable land. Rain forests that once grew over 14 percent of the land on Earth now cover only about 6 percent. And if current deforestation rates continue, these critical habitats could disappear from the planet completely within the next hundred years. The reasons for plundering rain forests are mainly economic. Threats Solutions Species Profiles Birds Mammals Plants Reptiles Amazon fires: Humans make rainforest more flammable Media playback is unsupported on your device Human disturbances are making the Amazon rainforest more flammable, according to researchers. This is one of the conclusions of a two-year study of the Brazilian Amazon, which revealed that even protected forest is degraded by human activity. This activity includes selective logging and forest fragmentation, which increase the likelihood of wildfires. The findings are published in the journal Nature. "Rainforests don't normally burn," said lead researcher Prof Jos Barlow, from the Lancaster Environment Centre. Image copyright A Lees While the Brazilian Amazon is protected from large-scale deforestation, this new study suggests that more effort is needed to safeguard what the scientists called the "hyper-diversity of tropical forests". This team set out to measure the effects that humans have on the rainforest - no easy feat in a dense landscape of 5.5 million sq km.