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Latest Earth sciences Stories

2009-09-01 16:36:37

This summer, a group of scientists and students "” as well as a Canadian senator, a writer, and a filmmaker "” set out from Resolute Bay, Canada, on the icebreaker Louis S. St-Laurent. They were headed through the Northwest Passage, but instead of opening shipping lanes in the ice, they had gathered to open up new lines of thinking on Arctic science.Among the participants in the shipboard workshop (hosted by Fisheries and Oceans Canada) was Ron Kwok of NASA's Jet Propulsion...

2009-07-15 10:20:50

Hundreds of images derived from classified data that could be used to better understand rapid loss and transformation of Arctic sea ice should be immediately released and disseminated to the scientific research community, says a new report from the National Research Council.  The committee that wrote the report emphasized that these Arctic images show detailed melting and freezing processes and also provide information at scales, locations, and time periods that are important for...

2009-06-18 09:10:49

U.S. scientists have used a supercomputer to calculate the iron isotope distribution in Earth's mantle that occurred 4.5 billion years ago. University of California-Davis geochemists said they simulated the conditions that would have existed when the Earth crystallized from an ocean of magma to its solid form, producing the first picture of how different isotopes of iron were initially distributed in the solid Earth. The scientists said their research could result in a wave of investigations...

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2009-05-05 10:33:22

The Yucca Mountain crest in Nevada, USA has been proposed as a permanent site for high level radioactive waste. But a new study, already published as an article in press by Elsevier's journal Geomorphology and recently included in the Research Highlights of Nature, shows that there may be erosion of the crest. Kurt Stwe of the University of Graz, Austria, together with his colleagues, used a simple numerical landscape evolution model to explore the rate of erosional decay of the Yucca...

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2009-04-28 15:32:50

Autonomous vehicle developed by the University of Washington is an element of Arctic Observing Network, an International Polar Year research priority An intelligent, ocean-going glider has spent six months on a record-breaking deployment to sample the icy waters off western Greenland. The samples will contribute to the longest continuous measurement of Arctic currents that help to drive ocean circulation and regulate global seawater temperatures. The 49-kilogram (110-pound) seaglider,...

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2009-04-23 10:00:00

A newly initiated campaign marks an important step in preparing for how data from the Sentinel-1 European Radar Observatory will be used for applications such as land-cover mapping and crop management. Sentinel-1 is the first of the five missions that ESA is developing for the GMES initiative. Sentinel-1 is a constellation of two C-band radar satellites that will provide continuous all-weather, day and night imagery for use in a range of diverse services "“ from marine and land...

2009-04-06 10:00:00

WASHINGTON, April 6 /PRNewswire-USNewswire/ -- The latest Arctic sea ice data from NASA and the National Snow and Ice Data Center show that the decade-long trend of shrinking sea ice cover is continuing. New evidence from satellite observations also shows that the ice cap is thinning as well. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Arctic sea ice works like an air conditioner for the global climate system. Ice naturally cools air and water masses, plays a key role in...

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2009-04-06 11:35:00

NASA and the National Snow and Ice Data Center say that the decade-long trend of shrinking sea ice cover in the Arctic is continuing and new evidence suggests that the ice cap is thinning as well. Arctic sea ice naturally cools air and water masses and plays an important role in ocean circulation as well as reflecting solar radiation back into space. However, Arctic sea ice has been declining at a staggering rate in recent years. Satellite monitoring of Arctic sea ice showed that this winter...

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2009-04-01 09:46:11

Arctic reindeer herders are facing the challenges of adapting to climate change as a warmer Arctic climate makes it harder for herds to find food and navigate. To help them adapt, the ESA-backed Polar View initiative is providing the herders with satellite-based snow maps. "Snow is of paramount importance for reindeer herding because its quality determines whether reindeer are able to access the pastures that lie beneath it for much of the year," said Anders Oskal, the Director of the...

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2009-03-31 13:57:08

An efficient network of specialists, data and tools to explore and safeguard Antarctica formed as legacy of IPY The International Polar Year (IPY) concluded in March 2009 with a tangible legacy in the form of a network of databases on marine biodiversity that will serve as clearinghouse for all biodiversity-related data gathered since the very first Antarctic research expeditions. The network gathers data describing the species themselves as well as information about their collection history,...


Latest Earth sciences Reference Libraries

Environmental Science
2014-01-12 00:00:00

Environmental science is a science that contains a wide range of scientific disciplines. These disciplines are grouped together based on the natural environment which they encompass and interact with. These sciences include physical, chemical, and biological components. Environmental science provides an interdisciplinary approach to the study of the environmental systems. The most common way environmental science is studied is through the work of one individual or small team drawing on the...

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2014-01-12 00:00:00

Earth science (or geoscience) is the science of the planet Earth. Earth science can be broken down into four major disciplines, which are: geography, geology, geophysics, and geodesy. These disciplines use physics, chemistry, biology, chronology and mathematics to arrive to a greater understanding of the principal areas of the Earth system. Since Earth is the only known life-bearing planet, Earth science is solely dedicated to the geophysical makeup of our own planet. One discipline,...

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