International team of scientists warns of climate change's impact on global river flow
In their analysis, the authors project river discharge
under different climate and water withdrawal ... in global maps illustrating potential changes in discharge
and water stress for dam-impacted and ... in the world will experience changes in river discharge
some are expected to have large increases in ...
Ozone, nitrogen change the way rising CO2 affects Earth's water
... stays there. Plants draw in water from the atmosphere and soil, and they discharge
it naturally through transpiration, the tail end of photosynthesis when ... have shown that increasing CO2 is changing how plant "pores," or stomata, discharge
water. With elevated CO2 levels, leaf pores contract and sometimes close ...
Bacteria create aquatic superbugs in waste treatment plants
... resistant to multiple antibiotics---up to 100 yards downstream from the discharge
point into the Huron River. Xi stresses that while the finding may be ... colleagues found that while the total number of bacteria left in the final discharge
effluent declined dramatically after treatment, the remaining bacteria was ...
AGU journal highlights: Nov. 11, 2008
... The authors find that surface mass balance and temporal variability in ice discharge
are correlated for the time period studied. Using this correlation, they ... year. The authors also find that rather than melting, variations in ice discharge
were the dominant factor in determining total ice loss.
Title: Mass ...
Marine debris will likely worsen in the 21st century
... It suggested that MARPOL Annex V be amended to include a prohibition on discharge
of garbage at sea, allowing for limited exceptions based on specific ... adds.
Nevertheless, some ships have already adopted zero or minimal discharge
practices. The U.S. Coast Guard (USCG) and U.S. Environmental Protection ...
Slicing solar power costs
The new method for slicing solar cell wafers known as wire electrical discharge
machining (WEDM) wastes less germanium and produces more wafers by ... melts during the cutting process.
The process is slow. Wire electrical discharge
machining takes 14 hours to cut a single wafer. Bamberg says the ...
New round of Environmental Venture Projects from Stanford's Woods Institute
... Earth System Science), William Durham (Anthropology).
of Wastewater Contaminants Across the Land-Sea Interface: Many coastal ... health. In the United States, no policies exist to regulate groundwater discharge
from coastal aquifers into the sea. Focusing on California, this study ...
LSU, Yale team study agricultural impact on Mississippi River
... River, injecting more carbon dioxide into the river and raising river discharge
during the past 50 years.
LSU Professor R. Eugene Turner and graduate ... Broussard, along with their colleagues at Yale, tracked changes in the discharge
of water and the concentration of bicarbonate, which forms when carbon ...
December GEOLOGY and GSA TODAY media highlights
... New Mexico suggest that geological sources of salt added by groundwater discharge
have a greater impact than agricultural effects. Through detailed sampling ... geochemical methods, they show that these increases result from localized discharge
of high-salinity groundwater, which is fingerprinted as a sedimentary ...
Climate change goes underground
... the effects of future climate change on groundwater recharge, storage, and discharge
to streams for two geologically and climatologically different regions in ... minor changes. The primary effect in this area was the change in river discharge
with up to 50% increase in winter and 50% decrease in summer. Research is ...
Flow of potassium into cells implicated in schizophrenia
... neurons," added Weinberger.
By regulating the flow of potassium ions into the cell, potassium channels control when neurons fire electrically discharge
and release a chemical messenger that signals neighboring neurons in a circuit. This flow is regulated, in part, by activity of the chemical ...
Better water use could reduce future food crises
... recently published in the journal " Water Resources Research ".
The current approach to water management considers only blue water, that is river discharge
and groundwater. According to the researchers, this limits the options to deal with increasing water scarcity and water risks induced by climate ...
Searching for pollution in the Caribbean
... obtained by participating countries. Another offshoot will probably be a project in 2012, which will assess the effects of submarine groundwater discharge
or waters coming from the continents on coastal pollution levels, using radon and radium to detect the phenomenon.
Project experts agree that the ...
Satellite imagery shows fragile Wilkins Ice Shelf destabilized
... 700 sq km of ice has been lost from the Wilkins Ice Shelf.
In contrast to the ice bridge, which shattered very quickly, it is expected that the discharge
of ice will continue for some weeks. The icebergs are calving as a result of fracture zones that have formed over the last 15 years and which turned ...
GOCE's electric ion propulsion engine switched on
... from a 40-kg tank, which is converted to fast-moving ions - naked xenon atoms that have had some of their electrons stripped away by an electric discharge
generated from solar energy. The ions are ejected toward the rear, giving a very gentle, steady and smooth thrust.
The electric ion propulsion ...
April 2009 Geology and GSA Today media highlights
... of Wisconsin, Madison, Wisconsin 53706, USA. Pages 303-306.
Explosive arc volcanism can have significant environmental impact because of the discharge
of ash and volatiles directly into the atmosphere and oceans. Jicha et al. compile 2,814 age determinations from four circum-Pacific arcs and show ...
Keeping golf courses green when fresh water is limited
... satellite treatment plants into areas in the north and southwest parts of the valley, reducing the need to expand both the water delivery and sewage discharge
systems. Clearly, as the practice of using lower-quality water for irrigation expands, there is an increased emphasis on the use of valid, ...
What happens when we sleep
... sleep," says Dr. Barbara Jones, neuroscientist at the MNI and principal investigator in the study. "Our study markedly demonstrates that MCH neurons discharge
in a reciprocal manner to the Orx neurons across the sleep-wake cycle." Dr. Jones and colleagues used their expertise to apply and develop a ...
GKSS to invest 12 million euros ($15.48 million) in a new observation system for the North Sea
... "Today's major problems of the coasts and the seas include overfishing, overfertilisation with nutrients and the discharge
of toxic substances on top of this, there are the effects of climate change. However, we lack the scientific tools to precisely assess and predict ...
Leptin's long-distance call to the pancreas
... the fat-derived hormone enlists the sympathetic nervous system to prevent bone-making cells from releasing a molecule that prods the pancreas to discharge
The study will appear online December 22, 2008 ( www.jcb.org ) and in the December 29, 2008 print issue of The Journal of Cell Biology ...
EPA and USDA should create new initiative to better monitor nutrients
... 10 percent of the total, the relative importance and actual percentages are still debated. Requiring monitoring and reporting as conditions for discharge
permits could substantially reduce uncertainties in the estimates of point source nutrient discharges, the committee said.
The report also ...
Cleaning heavily polluted water at a fraction of the cost
... oil refineries and other petrochemical industries is heavily contaminated with toxic compounds. Stringent EU regulations apply to its treatment and discharge
since, if left untreated, these compounds are hazardous to our health, our coastlines and deadly to all forms of aquatic life when released into our ...
Waterborne disease risk upped in Great Lakes
... the strength of extremely heavy precipitation events, leading to greater potential for flooding and the waterborne diseases that accompany the high discharge
of sewage into Lake Michigan.
Previously, Patz led a U.S. Environmental Protection Agency-funded study linking outbreaks of waterborne disease in ...
Experts meet on need for new rules to govern world's fragile polar regions
... Identification and Tracking (LRIT). Due to their vulnerability, arctic waters require very strict standards for ballast water exchange, fuel content, discharge
and emission. There should be internationally binding standards for construction, design, equipment and manning of ships," says Dr. Saksina.
AGU journal highlights -- Sept. 3, 2008
Although most freshwater entering the world's oceans comes from rivers, nutrient inputs into coastal environments via submarine groundwater discharge
(SGD) are disproportionately large. Groundwaters typically contain high concentrations of dissolved chemicals, making SGD important to phytoplankton ...
AGU journal highlights -- July 23, 2008
... in the 1960s, appears to be attributable solely to land cover change between the 1960s and the 1990s.
Land use impact on the Uruguay River discharge
Ramiro I. Saurral and Vicente R. Barros: Center for Atmospheric and Oceanic Research, National Scientific and Technical Research Council, ...
Penguins setting off sirens over health of world's oceans
... in places like Argentina, the Falklands and Africa run increasing risks of being fouled by oil, either from ocean drilling or because of petroleum discharge
from passing ships. The birds' chances of getting oiled are also increasing because in many cases they have to forage much farther than before to ...
Cellular self-eating promotes pancreatitis
... autophagy in pancreatic cells surges. Pancreatitis occurs when the enzyme trypsin dissolves cells from within. Normally, pancreatic cells fashion and discharge
an inactive form of trypsin called trypsinogen, which remains inert until it reaches the small intestine. But if trypsinogen converts to trypsin ...
New study links fate of personal care products to environmental pollution and human health concerns
... still present today at parts-per-million concentrations in estuarine sediments underlying the brackish waters into which New York City and Baltimore discharge
their treated domestic wastewater, said Halden, a new member of the institute's Center for Environmental Biotechnology. This extreme environmental ...
Model successfully predicts large river system fish diversity
... production, can provide crucial insights into the amount and spatial distribution of freshwater biodiversity and how that biodiversity may change as discharge
Researchers confirm dead zone off Texas coast since 1985
... of oxygen are believed to be caused by pollution from farm fertilizers as they empty into rivers and eventually the Gulf, or by soil erosion or discharge
from sewage treatment plants.
Not all of the area from the Texas-Louisiana coast to Brownsville is a dead zone area, but very much of it is, ...
U-M 'ballast-free ship' could cut costs while blocking aquatic invaders
... addressing the ballast problem in a serious way," Parsons said.
Ships take on ballast water for stability when they're not carrying cargo. They discharge
ballast when they load freight, expelling tons of water and anything else---from pathogenic microbes to mollusks and fish---that's in it.
New threat to Lake Victoria?
The two dams, both located at the outlet of Lake Victoria in Uganda, have been using water at a rate of 20 to 50 percent above the allowable discharge
agreed by Uganda and Egypt in 1957. Meanwhile, the dramatic drop in water level has dried the papyrus wetlands fringing the lake, resulting in an 80 ...
Smarter energy storage for solar and wind power
... and current management absorb and release charge rapidly and at efficiencies well above conventional battery types.
It is expected that the discharge
and charge power of the Smart Storage battery will be 50 per cent higher and its cycle-life at least three times longer than that of the conventional ...
Biological warfare: What do you need to know?
... from Webster University. Prior to his current position, he served in the U.S. Army Medical Corps, where he retired with an honorable discharge
after 24 years. During this time, he acquired vast experience setting up M.A.S.H. units and instructing medical emergency first responders.
September Geology and GSA Today media highlights
... USA; et al. Pages 779-782.
Torrential rains associated with typhoon Mindulle in early July 2004 caused the Choshui River in western Taiwan to discharge
to the Taiwan Strait more than 70 million tons of sediment in three daysabout half the annual amount discharged by the Mississippi River to the Gulf ...
Nanosecond-scale release of stinging jellyfish nematocysts
... researchers have characterized the explosive discharge
of stinging jellyfish nematocytes and show that ... the forces involved were known, simply because discharge
is so fast that it had not been previously ... these issues, the researchers studied nematocyst discharge
with an electronic framing-streak camera at a ...
Pollution threatens coral health by preventing lesions from healing, UCF study shows
... listed coastal development and treated wastewater discharge
as chronic problems along Florida's southeast ... causes of low coral vitality near wastewater discharge
pipes and the Port Everglades inlet. Coral that ...
Nitrogen pollution can be caused by the discharge
of treated wastewater effluent, and it leads to ...
Mechanism for memory revealed in neurons of electric fish
... it is memory."
The electric fish studied by Zakon and Oestreich discharge
electrical signals to survey their environment and communicate with each ... once the jamming avoidance has started, the fish's neurons continue to discharge
at a higher frequency, even after its neighbor fish may have swum away. ...