News tagged with africa
Domestic consumption main contributor to Africa's growing e-waste
West Africa faces a rising tide of e-waste generated by domestic consumption of new and used electrical and electronic equipment, according to a new United Nations report. Domestic consumption makes up the majority (up to ...
23 hours ago |
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Sandy streets over the Atlantic
Thick dust from the Sahara blowing over the ocean off the western coast of Africa encounters the islands of Cape Verde, forming a wake of swirling vortex streets visible by satellite.
Space & Earth / Earth Sciences
23 hours ago |
3 / 5 (1) |
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S.Africa in $208 mln AIDS drug venture with Swiss Lonza
South Africa on Friday unveiled plans for a 1.6 billion rand ($208 million, 157 million euro) pharmaceutical plant, in a joint venture with Swiss biochemicals group Lonza to produce anti-AIDS drugs.
Medicine & Health / HIV & AIDS
Feb 10, 2012 |
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Humans may have helped the decline of African rainforests 3000 years ago
(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...
Screening Africa's renewable energies potential
The European Commission's Joint Research Centre (JRC) has published today a study mapping the potential of renewable energy sources in Africa. The report analyses the current energy consumption in Africa and ...
Technology / Energy & Green Tech
Feb 08, 2012 |
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Climate-change effects on malaria risk
A new study suggests that climate change, driven by greenhouse-gas emissions and land-use changes, will cause patterns of malaria infection to change over the next 50 years.
Feb 03, 2012 |
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Mozambique signs 20-year Internet deal
Mozambique has signed a 20-year contract with Internet cable operator SEACOM to provide broadband access to government institutions and schools, science ministry official Rufino Gujamo said Thursday.
Feb 02, 2012 |
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Warning of unrest, new study shows millions risk losing lands in Africa
New studies released in London today suggest that the frenzied sell-off of forests and other prime lands to buyers hungry for the developing world's natural resources risk sparking widespread civil unrestunless national ...
Feb 01, 2012 |
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Anthropologists clarify link between Asians and early Native-Americans
A tiny mountainous region in southern Siberia may have been the genetic source of the earliest Native Americans, according to new research by a University of Pennsylvania-led team of anthropologists.
Other Sciences / Archaeology & Fossils
Jan 26, 2012 |
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Neanderthals and their contemporaries engineered stone tools
(PhysOrg.com) -- New published research from anthropologists at the University of Kent has scientifically supported for the first time the long held theory that early human ancestors across Africa, Western ...
Other Sciences / Archaeology & Fossils
Jan 24, 2012 |
4.3 / 5 (7) |
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Ancient dinosaur nursery oldest nesting site yet found
An excavation at a site in South Africa has unearthed the 190-million-year-old dinosaur nesting site of the prosauropod dinosaur Massospondylusrevealing significant clues about the evolution of comple ...
Other Sciences / Archaeology & Fossils
Jan 23, 2012 |
4.6 / 5 (13) |
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Wild dogs didn't go extinct in east Africa after all
In 1991, conservationists announced with dismay that endangered African wild dogs had gone extinct from the Serengeti-Mara region of east Africa. Now the latest genetic study reveals that this proclamation ...
Jan 23, 2012 |
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Drought returns to Sahel, bringing hunger
(AP) -- For the third time in the past decade, drought has returned to the arid, western shoulder of Africa, bringing hunger to millions. Aid agencies are warning that if action is not taken now, the region known as the ...
Jan 22, 2012 |
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How Internet is changing Ugandan business
Sitting in the glow of his flat-screen computer monitor in a fashionable office, Donald Kasule says that until recently it was almost impossible to imagine making a success of an Internet start-up in Uganda.
Jan 18, 2012 |
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Genetic code cracked for a devastating blood parasite
(PhysOrg.com) -- Scientists have cracked the genetic code and predicted some high priority drug targets for the blood parasite Schistosoma haematobium, which is linked to bladder cancer and HIV/ AIDS and causes the insidious ...
Jan 18, 2012 |
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Africa
Africa is the world's second-largest and second most-populous continent, after Asia. At about 30.2 million km² (11.7 million sq mi) including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area. With a billion people (as of 2009, see table) in 61 territories, it accounts for about 14.8% of the World's human population. The continent is surrounded by the Mediterranean Sea to the north, the Suez Canal and the Red Sea to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. Not counting the disputed territory of Western Sahara, there are 53 countries, including Madagascar and various island groups, associated with the continent.
Africa, particularly central eastern Africa, is widely regarded within the scientific community to be the origin of humans and the Hominidae tree (great apes), as evidenced by the discovery of the earliest hominids and their ancestors, as well as later ones that have been dated to around seven million years ago – including Sahelanthropus tchadensis, Australopithecus africanus, A. afarensis, Homo erectus, H. habilis and H. ergaster – with the earliest Homo sapiens (human) found in Ethiopia being dated to ca. 200,000 years ago.
Africa straddles the equator and encompasses numerous climate areas; it is the only continent to stretch from the northern temperate to southern temperate zones.
For more information about Africa, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.