Articles with the keyword: 
Water's role in Martian chemistry becoming clearer
sea-maid submitted, created time 1 month 2 weeks (www.sciencenews.org)
As its mission nears its end, the NASA Phoenix Mars Lander finds strong evidence for minerals similar to those formed on Earth by liquid water. 
Biotechnology: Can hydrogels solve our water problem?
Darkfrog submitted, created time 2 months 1 week (www.nature.com)
I remember reading BIll Bryson's description of a pre-blight American chestnut tree. When he came to the transpiration of water, he said, "imagine how much metal and noise humans would have to use to move that many gallons water."
Well artificial water transport just got a bit quieter, even if it can't match the chestnut just yet. A tiny microtree made from the same type of gel used to make contact lenses has mimicked water transport in plants. Scientists say that it could be used to extract water in dry places or make more efficient cooling systems
Sedum breathes easily in New York City
Darkfrog submitted, created time 2 months 3 weeks (www.nytimes.com)
New York City is offering a tax abtements to businesses--particularly gas-chugging businesses--that create "green" roofs. The shrubberies absorb unpleasant gasses and rainwater during downpours, preventing it from becoming tainted runoff. It also seems that layers of rocks and plants, instead of wearing a roof out sooner, can prolong its life. Even so, it can be hard to tally up just how the businesses save money. Also, they can be critically expensive to install, especially in New York, which is why New York has so few shrubby roofs compared to European cities or even Chicago
You are what, and where, you drink
sea-maid submitted, created time 4 months 2 weeks (www.economist.com)
POLICE now have a new test to help catch criminals and verify alibis. By analysing the chemical composition of human hair, researchers can determine the source of the water someone has been drinking in recent months. And that can indicate where he or she has been.
Mars Phoenix lander transmits photos!
Darkfrog submitted, created time 5 months 3 weeks (www.nytimes.com)
Last night I watched the live feed of the NASA control center as the Phoenix lander touched down on Mars' polar region. Its mission is to examine water on Mars with an eye toward whether there is or ever was life on Mars. It transmitted its first photos in the wee hours of this morning.
So far it looks like cracked rock and pebbles, but the scientists are sure that they will find ice!
sumsung submitted, created time 7 months 1 week (www.sciam.com)
Researchers announced this week that they are perfecting a procedure designed to turn pollution into a type of plastic used to make everything from DVDs to eyeglass lenses. The effort is being touted as a way to capture and use climate change–causing carbon dioxide (CO2) emissions from coal-fired power plants and other sources instead of releasing it into the atmosphere or burying it underground.
sumsung submitted, created time 7 months 4 weeks (www.nature.com)
If our planet were perfectly flat and its water covered all the surface, it would create a layer 2.7 kilometers deep. While this seems like a lot, less than 3% of that is freshwater. Of that, nearly 70% is in ice caps, glaciers, and permanent snow, and 30% sits in ground water. Rivers, lakes, and clouds carry less than 1% of the world's freshwater.
Fertile Runoff Threatens Environment
Sue Wu submitted, created time 8 months 4 days (www.sciam.com)
Nitrates from fertilizer as well as animal and human waste are carried by streams like this one in Wyoming to the sea where they cause vast dead zones.
Nitrate Threatening the Nation's Watersheds
Vincent submitted, created time 8 months 6 days (sciencenow.sciencemag.org)
There's mixed news about how the country's streams and rivers are handling increased loads of nitrate from human activities. The ecosystems are normally highly tolerant of the chemical, which is good. But new research shows that nitrate absorption can reach a limit, and that's what is happening in many areas. Worse, the budding biofuel industry figures to release even more nitrate into watersheds in the coming years.
Your history is printed in your hair
sumsung submitted, created time 8 months 3 weeks (www.nature.com)
The tap water that you drink leaves a "signature" in your hair that can provide a history of where you’ve lived, according to researchers. Using these imprints to trace people's past movements may eventually become a common tool for anthropologists and law-enforcement officials.
Going Down: Climate change, water use threaten Lake Mead
jane2007 submitted, created time 8 months 4 weeks (www.sciencenews.org)
If climate changes proceed as expected and future water use goes unchecked, there's a 50 percent chance that Lake Mead—one of the southwestern United States' key reservoirs—will become functionally dry in the next couple of decades, a new study suggests.
Greenhouse effect has "significantly dried" the western United States
sumsung submitted, created time 9 months 2 weeks (www.nature.com)
Human activity is largely to blame for the worsening water shortages in the western United States over the past half-century, a new study shows. The analysis of climate trends that influence the availability of freshwater shows that humans are responsible for 60% of the observed changes.
An Environmental Contaminant Invades the Womb
Eric wu submitted, created time 11 months 3 weeks (sciencenow.sciencemag.org)
Arsenic is poised to become even more notorious. Scientists have found that if a pregnant woman is exposed, the deadly contaminant can alter the activity of several genes in her fetus, potentially increasing the child's risk of cancer later in life. The find puts new urgency on keeping arsenic out of expectant mothers' drinking water.
How were DNA and protein molecules formed during the process of the origin of life?
pang xiaofeng submitted, created time 1 year 2 weeks (www.discover8.com)
We propose a new mechanism for the formation of DNA and protein molecules in the process of the origin of life based on the discovery of clustered chain structures of water molecules of size 2-70nm which exist in addition to the free molecules present in water. We suggest that not only was water a suitable environment for the appearance of DNA and protein molecules in primordial times but also that water molecules, with their clustered chain structures, were the templates for the formation of DNA and protein molecules
Biocontrol of invasive water hyacinth contributes to socioeconomic and health improvements in Africa
bianjie submitted, created time 1 year 4 months (www.eurekalert.org)
In research that will be presented at the annual meeting of the American Society of Plant Biologists in Chicago (July 7-11, 2007), scientists implemented a successful bioeradication program of an invasive water weed in Africa's Lake Victoria. Two insect biocontrol species, weevils in the genus Neochetina, were used, along with mechanical removal, to control the highly invasive water hyacinth, which has also plagued waterways in the southern United States.
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