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Storing Carbon To Combat Global Warming May Cause Other Environmental Problems, Study Suggests (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Growing tree plantations to remove carbon dioxide from the atmosphere to mitigate global warming -- so called "carbon sequestration" -- could trigger environmental changes that outweigh some of the benefits, a multi-institutional team led by Duke University suggested in a new report. Those effects include water and nutrient depletion and increased soil salinity and acidity, said the researchers. |
Rerouting Of Major Rivers In Asia Provide Clues To Mountains Of The Past (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Scientists have long recognized that the collision of the earth's great crustal plates generates mountain ranges and other features of the Earth's surface. Yet the link between mountain uplift and river drainage patterns has been uncertain. Now scientists have used laboratory techniques and sediment cores from the ocean to help explain the how rivers have changed course over millions of years |
Melanoma Risk Only Partially Associated Vith Exposure To UVB From Sunlight (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Researchers at The University of Texas M. D. Anderson Cancer Center have found that the risk of developing melanoma, the most deadly form of skin cancer, is only partially associated with exposure to ultraviolet B (UVB) radiation, the rays in sunlight that increase in summer and cause sunburn. |
Studying The Fate Of Drugs In Wastewater (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Acetaminophen is the most widely used pain reliever in the United States, and a study of 139 streams by the U.S. Geological Survey found that it was one of the most frequently detected man-made chemicals. Scientists at the National Institute of Standards and Technology have found that the drug readily reacts in chlorine disinfection to form at least 11 new products, at least two of which are known to be toxic. |
Dynamic Bed Causes Irregular Course Of River (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| How can you manage and design rivers such that no floods occur, whilst still ensuring navigation for shipping and a continuation of the agricultural, ecological and recreational functions? Dutch researcher Saskia van Vuren discovered that uncertainties in the behaviour of the riverbed play an important role in predicting the effects of design measures, such as lowering floodplains. |
Study Finds Significant Independent Association Between Air Pollution And Cardiovascular Risk (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| JAMA today published the findings of a study directed by Mount Sinai School of Medicine Researchers and funded by the National Institute of Health. The findings indicate a significant independent association between exposure to long term air pollution and the acceleration of atherosclerosis and vascular inflammation in an animal model. |
Atmospheric Radiation Measurement Program Mobile Facility Moves To Niger (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| After a six-month stint taking cloud and aerosol measurements at Point Reyes National Seashore on the California coast, a mobile suite of climate monitoring equipment was moved to Niamey, Niger, in October for a year's deployment there.
ARM -- for Atmospheric Radiation Measurement -- is the largest global climate change research program supported by the U.S. Department of Energy (DOE). It was created in 1989 as part of the Global Change Research Program to help resolve scientific uncertainties related to global change, focusing on the role of clouds. |
Artificial Light At Night Stimulates Breast Cancer Growth In Laboratory Mice (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Results from a new study in laboratory mice show that nighttime exposure to artificial light stimulated the growth of human breast tumors by suppressing the levels of a key hormone called melatonin. The study also showed that extended periods of nighttime darkness greatly slowed the growth of these tumors. |
Most Of Arctic's Near-surface Permafrost To Thaw By 2100 (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Over half of the Northern Hemisphere's topmost layer of permafrost could thaw by 2050 and as much as 90 percent by 2100, according to the National Center for Atmospheric Research. The thaw would alter ecosystems, damage buildings, add runoff to the Arctic Ocean, and release vast amounts of carbon. |
Surprising Killer Of Southeastern Salt Marshes: Common Sea Snails (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| From South Carolina to Texas, salt marshes have experienced a massive die-off in recent years, threatening fisheries and leaving coastal areas vulnerable to flooding. The culprit, ecologists have long thought, is degraded soil. But new research, published in Science, points to the periwinkle -- cordgrass consuming sea snails -- as a major contributor to salt marsh loss. |
Household Cleaners Effectively Remove Lead-laden Dust (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| All-purpose detergents remove lead-contaminated dust from household surfaces just as effectively as high phosphate detergents and lead-specific cleaning products, according to new research scheduled for publication in the Jan. 15 issue of the American Chemical Society's Environmental Science & Technology journal. |
Warmer 2005 For U.S., Near-record Warmth Globally -- Hurricanes, Floods, Snow And Wildfires All ... (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| After a record-breaking hurricane season, blistering heat waves, lingering drought and a crippling Northeast blizzard, 2005 is ending as a warm year in the United States. It will come close to the all-time high global annual average temperature, based on preliminary data gathered by scientists at the NOAA National Climatic Data Center in Asheville, N.C. |
Post-Katrina: Lead In Disturbed Soil May Pose Heightened Health Risk (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Unsafe levels of lead have been found in soil and sediments left behind in New Orleans following Hurricane Katrina and could pose a heightened health threat to returning residents, particularly children, according to a new study published in the American Chemical Society's journal Environmental Science & Technology. Some soil samples contained lead concentrations as much as two-thirds higher than what the US Environmental Protection Agency considers safe, according to researchers at Texas Tech University. |
Ancient Glaciers Still Affect The Shape Of North America, Say Scientists (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Long after the disappearance of the glaciers that once covered much of North America, the land they rested upon is still recovering from their weight - and the slow movement of this recovery includes horizontal motion never seen before, say Purdue scientists. The research team, led by Eric A. Calais, has found that a large swath of territory in the Northeast is slowly moving southward in relation to the rest of the continent. |
Microbes Under Greenland Ice May Be Preview Of What Scientists Find Under Mars' Surface (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| The presence of methane in Mars' atmosphere has led some scientists to propose that methane-producing microbes live under the surface. If that's true, UC Berkeley's Buford Price knows just where to look. His study of methane-producing Archaea at the base of Greenland's two-mile thick ice sheet indicates that about one microbe per cubic centimeter a few hundred meters underground could produce enough methane to maintain observed levels in the Martian atmosphere. |
Changes To Land Cover May Enhance Global Warming In Amazon, Reduce It In Midlatitudes (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| New simulations of 21st-century climate from the National Center for Atmospheric Research show that human-produced changes in land cover could produce additional warming in the Amazon region comparable to that caused by greenhouse gases, while counteracting greenhouse warming by 25 percent to 50 percent in some midlatitude areas. |
Prelude To An Earthquake? (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| A geophysicist from the US Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has identified possible seismic precursors to two recent California earthquakes, including the 1989 Loma Prieta earthquake that wreaked havoc throughout the Bay Area. After sifting through seismic data from the two quakes, Valeri Korneev found a spike in the number of micro-earthquakes followed by a period of relative calm in the crust surrounding the quakes' epicenters -- months before the quakes occurred. |
Amazon Trees Much Older Than Assumed, Raising Questions On Global Climate Impact Of Region (View Original Story)
Source: Posted: 12-26-2005 at 12:26:35
| Trees in the Amazon tropical forests are old. Really old, in fact, which comes as a surprise to a team of American and Brazilian researchers studying tree growth in the world's largest tropical region. |
New Study Pinpoints Epicenters Of Earth's Imminent Extinctions (View Original Story)
Source: Posted: 12-26-2005 at 12:26:36
| Safeguarding 595 sites around the world would help stave off an imminent global extinction crisis, according to new research published today in the Proceedings of the National Academy of Sciences. Conducted by scientists working with the 52 member organizations of the Alliance for Zero Extinction, the study identifies 794 species threatened with imminent extinction, each of which is in need of urgent conservation action at a single remaining site on Earth. |
San Andreas Fault Observatory At Depth Reveals New Insights Into The 'Earthquake Machine' (View Original Story)
Source: Posted: 12-26-2005 at 12:26:36
| The San Andreas Fault Observatory at Depth (SAFOD) -- the first underground observatory to provide physical samples and real-time seismological data from deep inside an active fault zone -- is yielding surprising new clues about the origin of earthquakes. SAFOD scientists from around the world met to discuss these new findings recently at the annual meeting of the American Geophysical Union (AGU) at Moscone Center West in San Francisco. |
Climate Models Need Deeper Roots, Scientists Say (View Original Story)
Source: Posted: 12-26-2005 at 12:26:36
| Researchers need to dig to deeper into soils to harvest enough data that would make climate models more fruitful, according to scientists at the University of Illinois at Urbana-Champaign. |
Study Shows Forests Thrive With Increased Carbon Dioxide Levels (View Original Story)
Source: Posted: 12-26-2005 at 12:26:36
| Forest productivity may be significantly greater in an atmosphere enriched with carbon dioxide, according to findings released today that challenge recent reports that question the importance of carbon dioxide fertilization. |
Peacetime Grenades Harm Environment (View Original Story)
Source: Posted: 12-26-2005 at 12:26:36
| Elisabeth Hochschorner and colleagues from the Royal Institute of Technology in Stockholm showed that during peacetime, the mining of metals used in grenade construction and the energy costs needed to produce them cause significant environmental impact. The residues emitted during practice detonations also top the list of harmful effects. |
GROWing The Next Generation Of Water Recycling Plants (View Original Story)
Source: Posted: 12-26-2005 at 12:26:36
| A vegetated rooftop recycling system has been developed that allows water to be used twice before it is flushed into the communal waste water system. |
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