Hazy shades of life on early Earth
A 'see-sawing' atmosphere over 2.5 billion years ago preceded the oxygenation of our planet and the development of complex life on Earth, a new study has shown.
Mar 18, 2012
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Mar 18, 2012
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A new theory on the formation of the oldest continents
German geologists from the Universities of Bonn and Cologne have demonstrated new scientific results in the April issue of the scholarly journal Geology, which provide a new theory on the earliest phase of continental format ...
Mar 12, 2012
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A climate window in the Southern Ocean
The world’s oceans act as a massive conveyor, circulating heat, water and carbon around the planet. This global system plays a key role in climate change, storing and releasing heat throughout the world. ...
Feb 28, 2012
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Tree rings may underestimate climate response to volcanic eruptions: study
Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...
Feb 05, 2012
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New computer model shows Titan atmosphere more Earth-like than thought
(PhysOrg.com) -- Two scientists from the French National Centre for Scientific Research in Paris have built a computer model that simulates the atmosphere on Titan, one of Saturn’s sixty two moons, and ...
Jan 16, 2012
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Team finds natural reasons behind nitrogen-rich forests
(PhysOrg.com) -- Many tropical forests are extremely rich in nitrogen even when there are no farms or industries nearby, says Montana State University researcher Jack Brookshire.
Jan 16, 2012
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More accurate than Santa Claus: First Galileo satellite orbit determination with high precision
Every year for Christmas, the North American Air Defence Command NORAD posts an animation on their website, in which the exact flight path of Santa Claus' sled led by reindeer Rudolf is precisely located (http://www.noradsanta.org/en/). The path of navigation satellites, however, ...
Dec 23, 2011
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Rise of atmospheric oxygen more complicated than previously thought
The appearance of oxygen in the Earth's atmosphere probably did not occur as a single event, but as a long series of starts and stops, according to an international team of researchers who investigated rock ...
Dec 01, 2011
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Earth's past gives clues to future changes
(PhysOrg.com) -- Scientists are a step closer to predicting when and where earthquakes will occur after taking a fresh look at the formation of the Andes, which began 45 million years ago.
Nov 24, 2011
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Paleontologist describes large nest of juvenile dinosaurs, first of their genus ever found
A nest containing the fossilized remains of 15 juvenile Protoceratops andrewsi dinosaurs from Mongolia has been described by a University of Rhode Island paleontologist, revealing new information about postna ...
Nov 21, 2011
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Climate change effect on release of CO2 from peat far greater than assumed
Climate change effect on release of CO2 from peat far greater than assumed Drought causes peat to release far more carbon dioxide into the atmosphere than has previously been realised.
Nov 20, 2011
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Researchers pinpoint date and rate of Earth's most extreme extinction
It's well known that Earth's most severe mass extinction occurred about 250 million years ago. What's not well known is the specific time when the extinctions occurred. A team of researchers from North America ...
Nov 17, 2011
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Massive volcanoes, meteorite impacts delivered one-two death punch to dinosaurs: study
(PhysOrg.com) -- A cosmic one-two punch of colossal volcanic eruptions and meteorite strikes likely caused the mass-extinction event at the end of the Cretaceous period that is famous for killing the dinosaurs ...
Nov 17, 2011
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Erratic, extreme day-to-day weather puts climate change in new light
The first climate study to focus on variations in daily weather conditions has found that day-to-day weather has grown increasingly erratic and extreme, with significant fluctuations in sunshine and rainfall ...
Nov 15, 2011
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Methane may be answer to 56-million-year question
(PhysOrg.com) -- The release of massive amounts of carbon from methane hydrate frozen under the seafloor 56 million years ago has been linked to the greatest change in global climate since a dinosaur-killing ...
Nov 09, 2011
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