As part of a major international project to design more earthquake-resistant woodframe buildings, an engineer from Rensselaer Polytechnic Institute will be…
These spectacular outburst floods happen as dams of ice and earth give way or, as from Vatnajokull in Iceland in 1996, when a volcano erupts beneath a glacier….
Summary of Report The knowledge available among AGU members provides scientific expertise on nearly all of the physical environment of the dynamic Gulf Coast…
Preliminary assessments by scientists from Russia, the University of Florida, and the University of Alaska Fairbanks indicate that loess permafrost, which…
For University of Washington atmospheric scientists Robert Charlson and Theodore Anderson, co-investigators on the CALIPSO satellite's science team, there are…
A scientific expedition to a remote glacier field in Canada's High Arctic may help researchers unlock the secrets about the beginning of life and provide…
The Earth Institute at Columbia University, June 8, 2005–The end of the recurring, 100,000-year glacial cycles is one of the most prominent and readily…
Residents of the town of Badger, located in the central region of Newfoundland and Labrador, are accessing satellite radar imagery used for forecasting floods straight from their computers. This service has been funded by the Global Monitoring for Environment and Security (GMES), an EU-led initiative in partnership with ESA.
Badger, situated at the confluence of three rivers, has a long history of flooding due to ice build up in the Exploits River – the largest of the three. In
A new analysis of earthquake data indicates that aftershocks are triggered by the shaking associated with the mainshock, rather than by the added stress on nearby faults resulting from rearrangement of the Earth’s crust.
The triggering of aftershocks by shaking may seem obvious, but is in fact a surprising result, said Emily Brodsky, assistant professor of Earth sciences at the University of California, Santa Cruz.
“The problem is that it’s not clear how s
Beavers, long known for their beneficial effects on the environment near their dams, are also critical to maintaining healthy ecosystems downstream. Researchers have found that ponds created by beaver dams raised downstream groundwater levels in the Colorado River valley, keeping soil water levels high and providing moisture to plants in the otherwise dry valley bottom. The results will be published 8 June in Water Resources Research, a journal of the American Geophysical Union.
Cherie
Since their discovery in the late 1970s, microorganisms known as archaea have fascinated scientists with their ability to thrive where no other life can – in conditions that are extremely hot, acidic or salty.
In the 1990s, however, scientists discovered that archaea occur widely in more mundane, low-temperature environments such as oceans and lakes. Now, researchers from the University of Georgia and Harvard University find evidence that these low-temperature archaea might have e
It has been 2.3 billion years since Earth’s atmosphere became infused with enough oxygen to support life as we know it. About the same time, the planet became encased in ice that some scientists speculate was more than a half-mile deep. That raises questions about whether complex life could have existed before “Snowball Earth” and survived, or if it first evolved when the snowball began to melt.
New research shows organisms called eukaryotes — organisms of one or more
Detailed information on greenhouse gasses and a subtropical heat wave at the North Pole 55 million years ago is providing information about the Earth’s past as well as a portent for its future, according to reports in the June 1 issue of Nature.
An expedition to the Artic Ocean in 2004 by a team of scientists aboard a fleet of icebreakers collected samples by drilling into the floor of the ocean. The project was part of an international research effort, the Integrated
Key findings published in Nature
A group of ocean-drilling research scientists that explored the Arctic Ocean subseafloor in Fall 2004 have released new findings in a report to be published in Nature on June 1. The report, supported by Integrated Ocean Drilling Program (IODP) research operations, contains analyses of subseafloor sediment samples gathered from 430 meters beneath the Arctic Ocean, near the North Pole. To recover the sediments that yielded the prehistoric climate reco
New report in Nature maps subsidence, addresses flooding in New Orleans
Most of New Orleans is sinking at an average rate of 6mm a year. In some areas, subsidence is occurring at a rate of as much as 29mm/year. That’s according to research published in this week’s edition of the journal Nature by scientists from the University of Miami Rosenstiel School of Marine and Atmospheric Science. Titled, “Subsidence and Flooding in New Orleans,” the authors conclude that when
Arctic ice formed about 45 million years ago – roughly 14 million years ahead of previous predictions – according to new research published in Nature. An international team of scientists, including Brown geologist Steven Clemens, says this startling evidence shows that glaciers formed in tandem at Earth’s poles, providing important insights into global climate change.
For the first time, scientists have pulled up prehistoric geologic records from the frigid vault of the Arct
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