News tagged with water
Portland, Ore., rejecting water fluoridation
(AP)—The mayor of Portland, Ore., has conceded defeat in an effort to add fluoride to the city's drinking water.
Health
May 22, 2013 |
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Primary care docs should play role in kids' dental health, experts say
(HealthDay)—When it comes to the care of your children's teeth, dentists aren't the only experts who can help.
Dentistry
May 21, 2013 |
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Novel mechanism allows Legionella to hide in body
(Medical Xpress)—The feared Legionella pneumophila is responsible for legionellosis, an infectious disease that can lead to pneumonia. To infect humans, this pathogen has developed a complex method that allows it to camouflage ...
Diseases, Conditions, Syndromes
May 20, 2013 |
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Many public pools contaminated with human waste, CDC says
(HealthDay)—There are few things more inviting than a cool, clear pool on a hot summer day. But a new federal report will have you thinking twice before dipping a toe in the water.
Health
May 16, 2013 |
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ECO: Distilled water doesn't up resting energy expenditure
(HealthDay)—Drinking 500 ml of purified water is not associated with increases in resting energy expenditure (REE), according to a study presented at the annual meeting of the European Congress on Obesity, ...
Overweight and Obesity
May 14, 2013 |
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Toddlers from socially-deprived homes most at risk of scalds, study finds
(Medical Xpress)—Toddlers living in socially-deprived areas are at the greatest risk of suffering a scald in the home, researchers at The University of Nottingham have found.
Health
May 09, 2013 |
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Hazards in homes and gardens a major injury cost
(Medical Xpress)—A significant proportion of injuries in the home, costing millions of dollars a year, are related to how a house is built and maintained, according to new research from the University of ...
Health
Apr 30, 2013 |
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Why climate change is causing upset stomachs in Europe
Much has been said about the effect of climate change, but little is known about its impact of water-related health issues. Scientists are now suggesting that greater quantities of rainfall and bigger storms ...
Health
Apr 30, 2013 |
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Hong Kong prescribes new dose of old Chinese medicine
The young woman pours a pack of brown powder into a glass of hot water, stirs it well and drinks the murky mixture down, hoping the traditional Chinese medicine will cure her feverish cold.
Medications
Apr 30, 2013 |
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Juicing trend is pulp fiction for many, dietitian says
Fueled by a $5 billion dollar industry that continues to grow 5 to 8 percent annually, juicing is being promoted by many as a useful strategy for weight loss. But the trend of extracting the liquid from produce ...
Health
Apr 29, 2013 |
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Smoking from hookah not a harmless alternative to cigarettes
(Medical Xpress)—Smoking tobacco through a hookah is a pastime gaining popularity among the college crowd, but many of them mistakenly believe that using the fragrant water pipe is less harmful than smoking ...
Health
Apr 18, 2013 |
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Interview: UN puts spotlight on 'stunted' kids
(AP)—The United Nations Children's Fund says more than a quarter of children under the age of 5 worldwide are permanently "stunted" from malnutrition, leaving them physically and intellectually weak and ...
Health
Apr 16, 2013 |
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Monday's medical myth: You lose most heat through your head
As the weather starts to cool down and winter clothes enter rotation in our wardrobes, some peculiar combinations emerge: shorts and scarves; thongs and jackets; T-shirts and beanies. The last is often explained ...
Other
Apr 09, 2013 |
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Legal levels of atrazine alter neuroendocrine, reproductive genes in zebrafish
(Medical Xpress)—A Purdue University study found an agricultural herbicide alters reproductive and neuroendocrine genes during embryonic development in fish, a finding that will help establish a genetic ...
Medical research
Apr 03, 2013 |
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Personalized brain mapping technique preserves function following brain tumor surgery
Neurosurgeons can visualize important pathways in the brain using an imaging technique called diffusion tensor imaging (DTI), to better adapt brain tumor surgeries and preserve language, visual and motor function while removing ...
Neuroscience
Apr 01, 2013 |
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Water
Water is a ubiquitous chemical substance, composed of hydrogen and oxygen, that is essential for the survival of many known forms of life. In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam. Water covers 71% of the Earth's surface. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Saltwater oceans hold 97% of surface water, glaciers and polar ice caps 2.4%, and other land surface water such as rivers, lakes and ponds 0.6%. A very small amount of the Earth's water is contained within biological bodies and manufactured products. Other water is trapped in ice caps, glaciers, aquifers, or in lakes, sometimes providing fresh water for life on land.
Water moves continually through a cycle of evaporation or transpiration (evapotranspiration), precipitation, and runoff, usually reaching the sea. Winds carry water vapor over land at the same rate as runoff into the sea. Over land, evaporation and transpiration contribute to the precipitation over land.
Clean, fresh drinking water is essential to human and other lifeforms. Access to safe drinking water has improved steadily and substantially over the last decades in almost every part of the world. There is a clear correlation between access to safe water and GDP per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability. Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70 percent of freshwater is consumed by agriculture.
For more information about Water, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
