Posts tagged as:

Water

Urban Trees Enhance Water Infiltration

by mokosam on November 28, 2008

Global land use patterns and increasing pressures on water resources demand creative urban stormwater management. Traditional stormwater management focuses on regulating the flow of runoff to waterways, but generally does little to restore the hydrologic cycle disrupted by extensive pavement and compacted urban soils with low permeability. The lack of infiltration opportunities affects groundwater recharge [...]

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Saturn`s moon Enceladus may indeed hide an underground reservoir of water.
Scientists at Jet Propulsion Lab in California, the University of Colorado and the University of Central Florida in Orlando teamed up to analyze the plumes of water vapor and ice particles spewing from the moon. They used data collected by the Cassini spacecraft`s Ultraviolet Imaging [...]

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Slow-moving ocean and river currents could be a new, reliable and affordable alternative energy source. A University of Michigan engineer has made a machine that works like a fish to turn potentially destructive vibrations in fluid flows into clean, renewable power.
The machine is called VIVACE.  VIVACE is the first known device that could harness energy [...]

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When mice are exposed to arsenic at federally-approved levels for drinking water, pores in liver blood vessels close, potentially leading to cardiovascular disease, say University of Pittsburgh researchers in the Dec. 1 issue of the Journal of Clinical Investigation, available online Nov. 13.
The study, while preliminary, also reveals how an enzyme linked to hypertension and [...]

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Water vapor is known to be Earth`s most abundant greenhouse gas, but the extent of its contribution to global warming has been debated. Using recent NASA satellite data, researchers have estimated more precisely than ever the heat-trapping effect of water in the air, validating the role of the gas as a critical component of climate [...]

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Measuring Water From Space

by mokosam on November 16, 2008

Observations from satellites now allow scientists to monitor changes to water levels in the sea, in rivers and lakes, in ice sheets and even under the ground. As the climate changes, this information will be crucial for monitoring its effects and predicting future impacts in different regions.
Sea level rise in one of the major consequences [...]

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Two hundred and fifty miles above the Earth puts you a long way from the nearest kitchen tap. And at $15,000 a pint, the cost of shipping fresh water aboard the space shuttle is, well, astronomical.
So astronauts on the International Space Station have to recapture every possible drop. That includes water evaporated from showers, shaving, [...]

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 A EU-India consortium led by Queen’s University Belfast has led to the development of technology which could provide safe drinking water for over 70 million people in South East Asia. The joint collaboration has resulted in the world’s first low-cost technology to provide arsenic-free water to people in India and surrounding countries.
This week researchers from [...]

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A study of populations of tiny water fleas is helping ecologists to understand population dynamics, which may lead to predictions about the ecological consequences of environmental change.
The study is published in October 29 in the journal Nature. The water flea, called Daphnia, plays a key role in the food web of many lakes.
Co-author Roger Nisbet, [...]

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Cholera is a major killer and since the first pandemic in the early 19th century it has claimed millions of lives. According to Amit Lerner from The Hebrew University of Jerusalem, Israel, the lethal infection is harboured by an equally infamous insect: chironomids (midges). Lerner explains that the females contaminate water sources with the deadly [...]

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