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| Ecology articles |
The real costs of uranium mining unearthed -- deep holes need deep pockets
There is plenty of controversy associated with the environmental impact of uranium mining and equally so, plenty of spin by governments and conservationists over the so-called real cost of uranium mining.
Monkey see, monkey do?
What is the very best way to learn a complex task? Is it practice, practice, practice, or is watching and thinking enough to let you imitate a physical activity, such as skiing or ballet? A new study from Brandeis University published this week in the Journal of Vision unravels some of the mysteries surrounding how we learn to do things like tie our shoes, feed ourselves, or perform dazzling dance steps.
Scientists compute death throes of white dwarf star in 3d
White dwarf stars pack one and a half times the mass of the sun into an object the size of Earth. When they burn out, the ensuing explosion produces a type of supernova that astrophysicists believe manufactures most of the iron in the universe. But these type Ia supernovas, as they are called, may also help illuminate the mystery of dark energy, an unknown force that dominates the universe.
Scientists answer ring of fire's riddle
Australian scientists have discovered why the ensemble of volcanic island chains which encircle the Pacific, the so-called 'Ring of Fire', is not only shaped like a ring but also why it is shrinking.
Mussels and oysters endangered by the acidification of the oceans
Since the beginning of the industrial age the ocean has absorbed about half of all anthropic carbon dioxide (CO2) emissions into the atmosphere. This has led to an acidification of sea water. Frédéric Gazeau, a scientist at the Netherlands Institute of Ecology, and his colleagues, including Jean-Pierre Gattuso, Director of Research at the Oceanographic laboratory at Villefranche-sur-Mer (CNRS/Université Pierre et Marie Curie) have examined the reaction of oysters and mussels cultivated in Europe to this acidification of the oceans.
Protecting earth's ozone layer also helped slow climate change
An international agreement to reduce ozone-depleting chemicals, based in part on science conducted in the 1980s by NOAA scientists and their colleagues, also has slowed global warming by years, according to a new study by scientists at the NOAA Earth System Research Lab and their partners.
Evidence of first plate tectonics 3.8 billion years ago
Identification of the oldest preserved pieces of Earth's crust in southern Greenland has provided evidence of active plate tectonics as early as 3.8 billion years ago, according to a report by an international team of geoscientists in the March 23 edition of Science magazine.
New evidence puts 'snowball earth' theory out in the cold
The theory that Earth once underwent a prolonged time of extreme global freezing has been dealt a blow by new evidence that periods of warmth occurred during this so-called 'Snowball Earth' era.
New modeling study forecasts disappearance of existing climate zones
A new climate modeling study forecasts the complete disappearance of several existing climates in tropical highlands and regions near the poles, while large swaths of the tropics and subtropics may develop new climates unlike any seen today.
Geologist troubleshoots silica problem at geothermal plants
In the debate over alternative energy resources, geothermal technology has received scant media attention. Advocates call it one of the cleanest, sustainable energy resources available. However, steep construction, equipment and drilling costs have prevented more widespread development of geothermal technology. An Ohio University hydrothermal systems expert is working to change that.
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High-resolution images herald new era in earth sciences
High-resolution images that reveal unexpected details of the Earth's internal structure are among the results reported by MIT and Purdue scientists in the March 30 issue of Science.
Trees to offset the carbon footprint?
How effective are new trees in offsetting the carbon footprint? A new study suggests that the location of the new trees is an important factor when considering such carbon offset projects. Planting and preserving forests in the tropics is more likely to slow down global warming.
Scientists uncover workings of bacterial invisibility cloak
Scientists have uncovered the workings of a method bacteria responsible for diseases such as meningitis and blood disorders use to hide from the body's immune system. An international research team led by scientists from the University of St Andrews has discovered how bacteria are able to cover their surface under a cloak of carbohydrate molecules to prevent being detected and targeted. Bacteria use a newly discovered protein that allows them to transport a cloak of carbohydrates from inside the bacterial cell that makes them invisible to the immune system.
Chemist finds current climate change models should bite the dust
The Sahara Desert is a shedder. No matter what the season, it releases a plague of unwanted grains into the atmosphere that eventually ride the wind across the Atlantic Ocean.
New deep-sea hydrothermal vents, life form discovered
A new "black smoker"--an undersea mineral chimney emitting hot springs of iron-darkened water--has been discovered at 8,500-foot depths by an expedition funded by the National Science Foundation (NSF) to explore the Pacific Ocean floor off Costa Rica.
Bacteria control how infectious they become
The results of a new study suggest that bacteria that cause diseases like bubonic plague and serious gastric illness can turn the genes that make them infectious on or off.
Arctic sea ice narrowly missed record low in winter 2007
The maximum extent of Arctic sea ice in winter 2007 was the second lowest on satellite record, narrowly missing the 2006 record, according to a team of University of Colorado at Boulder researchers.
Scientists link volcanic eruptions that formed north atlantic ocean to ancient global warming episode
Scientists examining a spike in worldwide ocean temperatures 55 million years ago have linked it to massive volcanic eruptions that pushed Greenland and northwest Europe apart to create the North Atlantic Ocean.
Ocean's 'twilight zone' plays important role in climate change
A major study has shed new light on the dim layer of the ocean called the "twilight zone"—where mysterious processes affect the ocean's ability to absorb and store carbon dioxide accumulating in our atmosphere.
Prehistoric mystery organism verified as giant fungus
Scientists at the University of Chicago and the National Museum of Natural History in Washington, D.C., have produced new evidence to finally resolve the mysterious identity of what they regard as one of the weirdest organisms that ever lived.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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