News tagged with human population
Stark warning emerges from science summit
A stark theme emerged from an annual scientific get-together in Vancouver: the world must be helped to believe in science again or it could be too late to save our planet.
Feb 21, 2012 |
4.3 / 5 (32) |
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Lost civilization under Persian Gulf?
A once fertile landmass now submerged beneath the Persian Gulf may have been home to some of the earliest human populations outside Africa, according to an article published today in Current Anthropology.
Other Sciences / Archaeology & Fossils
Dec 08, 2010 |
4.7 / 5 (22) |
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Strength in numbers
New research sheds light on why, after 300,000 years of domination, European Neanderthals abruptly disappeared. Researchers from the University of Cambridge have discovered that modern humans coming from Africa swarmed the ...
Other Sciences / Archaeology & Fossils
Jul 28, 2011 |
4.7 / 5 (16) |
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How hard are we pushing the land?
We may be becoming an ever more technologically advanced society, but we remain as dependent as ever -- if not more and more so -- on the natural world that surrounds us.
Dec 15, 2010 |
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New analysis shows 'hobbits' couldn't hustle
A detailed analysis of the feet of Homo floresiensis—the miniature hominins who lived on a remote island in eastern Indonesia until 18,000 years ago -- may help settle a question hotly debated among paleontologists: how si ...
Other Sciences / Archaeology & Fossils
May 06, 2009 |
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Why sex with a partner is better (w/ Video)
(PhysOrg.com) -- OK, it takes two for human reproduction, and now it seems that plants and animals that can rely on either a partner or go alone by self-fertilization give their offspring a better chance for ...
Oct 21, 2009 |
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New algorithm provides new insights into evolutionary exodus out of Africa
Researchers have probed deeper into human evolution by developing an elegant new technique to analyse whole genomes from different populations. One key finding from the Wellcome Trust Sanger Institute's study is that African ...
Jul 13, 2011 |
4.3 / 5 (14) |
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It's dim up north
The farther that human populations live from the equator, the bigger their brains, according to a new study by Oxford University. But it turns out that this is not because they are smarter, but because they ...
Jul 27, 2011 |
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European neanderthals were on the verge of extinction even before the arrival of modern humans: study
New findings from an international team of researchers show that most neanderthals in Europe died off around 50,000 years ago.
Other Sciences / Archaeology & Fossils
Feb 26, 2012 |
4 / 5 (13) |
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Evolution during human colonizations
Most human populations are the product of a series of range expansions having occurred since modern humans left Africa some 50,000 years ago to colonize the rest of the world, but how have these processes influenced today's ...
Nov 03, 2011 |
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Research team suggests European Little Ice Age came about due to reforestation in New World
(PhysOrg.com) -- A team comprised of geological and environmental science researchers from Stanford University has been studying the impact that early European exploration had on the New World and have found evidence that ...
Space & Earth / Earth Sciences
Oct 17, 2011 |
3.8 / 5 (13) |
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Study shows competition, not climate change, led to Neanderthal extinction
In a recently conducted study, a multidisciplinary French-American research team with expertise in archaeology, past climates, and ecology reported that Neanderthal extinction was principally a result of competition with ...
Other Sciences / Archaeology & Fossils
Dec 29, 2008 |
4.6 / 5 (10) |
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Psychological research conducted in WEIRD nations may not apply to global populations
A new University of British Columbia study says that an overreliance on research subjects from the U.S. and other Western nations can produce false claims about human psychology and behavior because their psychological tendencies ...
Medicine & Health / Psychology & Psychiatry
Jun 30, 2010 |
4.6 / 5 (9) |
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Subtle shifts, not major sweeps, drove human evolution
The most popular model used by geneticists for the last 35 years to detect the footprints of human evolution may overlook more common subtle changes, a new international study finds.
Feb 17, 2011 |
4.3 / 5 (9) |
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Culture in humans and apes has the same evolutionary roots: study
Culture is not a trait that is unique to humans. By studying orangutan populations, a team of researchers headed by anthropologist Michael Krützen from the University of Zurich has demonstrated that great apes also have ...
Oct 20, 2011 |
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World population
The term world population commonly refers to the total number of living humans on Earth at a given time. As of 29 July 2009, the Earth's population is estimated by the United States Census Bureau to be 6.774 billion. The world population has been growing continuously since the end of the Black Death around 1400. There were also short term falls at other times due to plague, for example in the mid 17th century (see graph). The fastest rates of world population growth (above 1.8%) were seen briefly during the 1950s then for a longer period during the 1960s and 1970s (see graph). According to population projections, world population will continue to grow until around 2050. The 2008 rate of growth has almost halved since its peak of 2.2% per year, which was reached in 1963. World births have levelled off at about 134-million-per-year, since their peak at 163-million in the late 1990s, and are expected to remain constant. However, deaths are only around 57 million per year, and are expected to increase to 90 million by the year 2050. Since births outnumber deaths, the world's population is expected to reach about 9 billion by the year 2040.
For more information about World population, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
