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Latest Historical geology Stories

Elevated Carbon Dioxide Is making Arid Regions Greener
2013-05-31 11:25:37

American Geophysical Union Scientists have long suspected that a flourishing of green foliage around the globe, observed since the early 1980s in satellite data, springs at least in part from the increasing concentration of carbon dioxide in Earth´s atmosphere. Now, a study of arid regions around the globe finds that a carbon dioxide “fertilization effect” has, indeed, caused a gradual greening from 1982 to 2010. Focusing on the southwestern corner of North America,...

Rainforests Thrive In High Temperatures
2013-05-31 08:42:09

April Flowers for redOrbit.com - Your Universe Online Paleontologists at the Smithsonian Tropical Research Institute say that South American rainforests have thrived during three extreme global warming events in the past. Currently, no tropical forests in South America experience average yearly temperatures over 84 degrees Fahrenheit. By the end of the century, however, average global temperatures are predicted to rise by another 1 degree, leading some scientists to predict the death of...

Climate Change May Be Overstated
2013-05-20 11:02:20

Brett Smith for redOrbit.com - Your Universe Online Based on current trends, the Earth is expected to warm considerably over the coming centuries. However, a new study in Nature Geoscience suggests that the more acute predictions of climate change may be overstated. In the study, the international team of researchers looked to see how doubling the concentrations of carbon dioxide in the atmosphere and the Earth's subsequent response would impact climate over several thousand years, a...

Looking Back To Look Forward
2013-05-20 04:57:58

[ Watch the Video: What is Global Warming ] redOrbit Staff & Wire Reports - Your Universe Online Researchers from the University of Hawaii at Manoa and Woods Hole Oceanographic Institution are looking to events of the past to better understand how rainfall patterns across the Indo-Pacific warm pool — the massive pool of warm water stretching along the equator from Africa to the western Pacific Ocean — will change due to global warming. As part of their study, Pedro...

2013-05-16 16:20:46

WASHINGTON, May 16, 2013 /PRNewswire-USNewswire/ -- A new study of glaciers worldwide using observations from two NASA satellites has helped resolve differences in estimates of how fast glaciers are disappearing and contributing to sea level rise. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The new research found glaciers outside of the Greenland and Antarctic ice sheets, repositories of 1 percent of all land ice, lost an average of 571 trillion pounds (259 trillion...

2013-05-15 12:29:44

President Obama Vows to Foster SME Growth in Latin America MIAMI, May 15, 2013 /PRNewswire/ -- Latin Trade Group, the leading provider of information and business services to companies operating in Latin America, announces the participation of leaders of top multinational companies as panelists at the second annual Trade Americas Expo: Creating an Environment for Business Opportunities in the Hemisphere. Hosted in partnership with the Inter-American Development Bank (IDB) at the JW...

Agricultural Expansion In Amazon Will Only Decrease Productivity
2013-05-10 09:45:13

Lawrence LeBlond for redOrbit.com - Your Universe Online Widespread agricultural expansion in Brazil destroys equally as much rainforest, negating any benefits for the region. In fact, researchers, publishing a paper in the journal Environmental Research Letters, have called the practice a “no-win situation.” The research, led by Dr Leydimere Oliveira of the Federal University of Minas Gerais (UFMG), shows that deforestation will not only reduce the capacity of the...

Lake Elgygytgyn
2013-05-10 05:02:04

April Flowers for redOrbit.com - Your Universe Online An international team of scientists, led by Julie Brigham-Grette of the University of Amherst, has analyzed the longest continental sediment core ever collected in the Arctic to provide “absolutely new knowledge” of Arctic climate from 2.2 million to 3.6 million years ago. "While existing geologic records from the Arctic contain important hints about this time period, what we are presenting is the most continuous archive...

Making Four New Dinosaur Species Out Of One
2013-05-09 14:01:38

Brett Smith for redOrbit.com - Your Universe Online Thanks to hard work and determination, a University of Alberta researcher has found four new species of armored dinosaurs that were originally considered to be the same species. Back in the early part of the twentieth century, archeologists“¯had determined that several groups of ankylosaur fossils were four individual species of the dinosaur group based on small differences in the skull armor and the tail clubs. Ankylosaurs...

Atlantis Found In Brazil Via Discovery Of Ancient Granite Rock
2013-05-09 09:08:58

Lawrence LeBlond for redOrbit.com - Your Universe Online First mentioned in two dialogues (Timaeus and Critias) by Plato in 360 BC, the legendary island of Atlantis has long been sought by historians, archaeologists, and explorers alike. Said to have originally existed between South America and Africa, this sunken island has been searched for in no less than dozens of locations worldwide, from Bimini to the Black Sea. In a new twist, a team of scientists from Brazil and Japan say they...


Latest Historical geology Reference Libraries

Paleontology
2014-01-12 00:00:00

Paleontology or Palaeontology is the scientific study of prehistoric life, including the study of fossils to determine the organisms evolution and interactions with each other and their environments. Paleontological observations have been documented as far back as 5th century BC. The science became established in the 18th century as a result of Georges Cuvier’s work on comparative anatomy, and it developed quickly within the 19th century. The term itself comes from Greek palaios, meaning...

Rainforests
2013-04-19 19:33:20

Rainforests are forests that are characterized by high levels of rainfall, with definitions based on a minimum usual annual rainfall of about 68 to 78 inches. The monsoon trough, or otherwise known as the intertropical convergence zone, holds an important role in producing the climatic conditions that are essential for the Earth’s tropical rainforests. About 40 to 75 percent of all biotic species are native to the rainforests. It’s been estimated that there might be many millions of...

Climate Change
2013-04-01 11:05:27

Climate change is a substantial and lasting change in the statistical distribution of weather patterns over periods of time ranging from decades to millions of years. It might be a change in the average weather conditions, or in the distribution of weather around the average conditions. Climate change is a result of factors that include oceanic processes, biotic processes, variations in solar radiation received buy Earth, volcanic eruptions, and plate tectonics, and human induced alterations...

Geologic Clock With Events And Periods
2012-11-18 19:10:56

The Neoproterozoic is the third of three subdivisions of the Proterozoic Eon (occurring from 1 billion years ago to 542 million years ago). This terminal era of the Proterozoic is itself divided into three sub-periods called the Tonian, Cryogenian, and Ediacaran Periods. The most severe glaciation known in the geologic record occurred during the Cryogenian Period, when ice sheets reached the equator and formed a possible “Snowball Earth.” And the earliest fossils of multi-cellular life...

Geologic Clock With Events And Periods
2012-11-18 19:08:04

The Paleoproterozoic is the first of three subdivisions of the Proterozoic Eon (occurring from 2.5 billion to 1.6 billion years ago (Ga). This period is marked by the first stabilization of the continents, and also when cyanobacteria--a type of bacteria that uses biochemical processes of photosynthesis to produce oxygen--evolved. Experts have found paleontological evidence that during at least part of the Paleoproterozoic era, about 1.8 Ga, the earth year was about 450 days long, with days...

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