News tagged with geosciences

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, ...

Space & Earth / Earth Sciences

created Feb 05, 2012 | popularity 3.7 / 5 (3) | comments 22 | with audio podcast

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 ...

Space & Earth / Space Exploration

created Jan 16, 2012 | popularity 3.9 / 5 (12) | comments 11 | with audio podcast report

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.

Space & Earth / Earth Sciences

created Jan 16, 2012 | popularity 4.8 / 5 (6) | comments 1 | with audio podcast

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, ...

Space & Earth / Space Exploration

created Dec 23, 2011 | popularity 5 / 5 (2) | comments 0

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 ...

Space & Earth / Earth Sciences

created Dec 01, 2011 | popularity 5 / 5 (5) | comments 0 | with audio podcast

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.

Space & Earth / Earth Sciences

created Nov 24, 2011 | popularity 5 / 5 (1) | comments 4

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 ...

Other Sciences / Archaeology & Fossils

created Nov 21, 2011 | popularity 3.5 / 5 (2) | comments 1 | with audio podcast

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.

Space & Earth / Environment

created Nov 20, 2011 | popularity 3.8 / 5 (10) | comments 33 | with audio podcast

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 ...

Space & Earth / Earth Sciences

created Nov 17, 2011 | popularity 5 / 5 (6) | comments 0 | with audio podcast

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 ...

Space & Earth / Earth Sciences

created Nov 17, 2011 | popularity 5 / 5 (10) | comments 11 | with audio podcast

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 ...

Space & Earth / Earth Sciences

created Nov 15, 2011 | popularity 4 / 5 (8) | comments 10 | with audio podcast

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 ...

Space & Earth / Earth Sciences

created Nov 09, 2011 | popularity 4.9 / 5 (21) | comments 18 | with audio podcast

Scientists find evidence of Roman period megadrought

A new study at the UA's Laboratory of Tree-Ring Research has revealed a previously unknown multi-decade drought period in the second century A.D. The findings give evidence that extended periods of aridity ...

Space & Earth / Earth Sciences

created Nov 04, 2011 | popularity 3.7 / 5 (11) | comments 6 | with audio podcast

Lessons from the Christchurch, New Zealand earthquake

Details of an earthquake that rocked the largest city in the South Island of New Zealand in February 2011 may transform the way scientists assess the potential threat of fault lines that run through urban centers.

Space & Earth / Earth Sciences

created Nov 01, 2011 | popularity 4.8 / 5 (5) | comments 0 | with audio podcast

Metal shortages alert from leading geologists

Geologists are warning of shortages and bottlenecks of some metals due to an insatiable demand for consumer products.

Space & Earth / Earth Sciences

created Oct 12, 2011 | popularity 4.5 / 5 (4) | comments 3