Quantcast

Latest Groundwater Stories

53145dbed9e8ada8cf2940293d6978751
2009-12-14 14:35:00

New space observations reveal that since October 2003, the aquifers for California's primary agricultural region -- the Central Valley -- and its major mountain water source -- the Sierra Nevadas -- have lost nearly enough water combined to fill Lake Mead, America's largest reservoir. The findings, based on data from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (Grace), reflect California's extended drought and increased rates of groundwater being pumped for human...

e7964ecd848baa980f77bf6b123446721
2009-11-15 12:31:09

Researchers in MIT's Department of Civil and Environmental Engineering believe they have pinpointed a pathway by which arsenic may be contaminating the drinking water in Bangladesh, a phenomenon that has puzzled scientists, world health agencies and the Bangladeshi government for nearly 30 years. The research suggests that human alteration to the landscape, the construction of villages with ponds, and the adoption of irrigated agriculture are responsible for the current pattern of arsenic...

2009-10-31 10:18:40

Although declining streamflows and half-full reservoirs have gotten most of the attention in water conflicts around the United States, some of the worst battles of the next century may be over groundwater, experts say "“ a critical resource often taken for granted until it begins to run out. Aquifers are being depleted much faster than they are being replenished in many places, wells are drying up, massive lawsuits are already erupting and the problems have barely begun. Aquifers that...

2009-10-22 13:58:49

A Kansas State University geologist and graduate student are finding that the most important tools in their fieldwork on groundwater arsenic pollution are women and children armed with pamphlets and testing kits. "When going into a foreign land, you need the common people's help, support and understanding of the work you are doing," said Saugata Datta, a K-State assistant professor of geology. Datta's research examines arsenic levels in the groundwater in Bangladesh and West Bengal, India. In...

2009-09-21 13:06:41

A U.S.-led international scientific team says it has determined that Earth's river deltas are sinking due to human activity, many having recent severe flooding. The researchers, led by University of Colorado-Boulder Professor James Syvitski, found 24 of the world's 33 major deltas are sinking, making them increasingly vulnerable to flooding from rivers and ocean storms and putting tens of millions of people at risk. The study concludes the sinking of deltas from Asia and India to the Americas...

6b76d408a943af19eaca5a49e04551831
2009-09-18 09:19:07

CSIRO researchers have discovered that micro-organisms that help break down contaminants under the soil can actually get too hot for their own good. While investigating ways of cleaning up groundwater contamination, scientists examined how microbes break down contaminants under the soil's surface and found that subsurface temperatures associated with microbial degradation can become too hot for the microbes to grow and consume the groundwater contaminants. This can slow down the clean up of...

2009-09-16 10:52:09

Levels of chloride, a component of salt, are elevated in many urban streams and groundwater across the northern U.S., according to a new government study. Chloride levels above the recommended federal criteria set to protect aquatic life were found in more than 40 percent of urban streams tested.  The study was released today by the U.S. Geological Survey (USGS).  Elevated chloride can inhibit plant growth, impair reproduction, and reduce the diversity of organisms in streams. The...

2009-08-12 15:16:05

Scientists using satellite data say they've determined northern India's groundwater has been declining by as much as 1 foot per year during the past decade. The researchers, led by Matt Rodell of NASA's Goddard Space Flight Center, blame the water loss nearly entirely on human activity. Hydrologists said they determined more than 26 cubic miles of groundwater disappeared from aquifers in areas of Haryana, Punjab, Rajasthan and India's capitol territory of Delhi between 2002 and 2008. That's...

2009-08-12 12:52:46

Using satellite data, UC Irvine and NASA hydrologists have found that groundwater beneath northern India has been receding by as much as 1 foot per year over the past decade "“ and they believe human consumption is almost entirely to blame.More than 109 cubic kilometers (26 cubic miles) of groundwater disappeared from the region's aquifers between 2002 and 2008 "“ double the capacity of India's largest surface-water reservoir, the Upper Wainganga, and triple that of Lake Mead, the...

2009-07-31 08:55:33

To counter salination of its coastal acquifer, Israel's National Water Authority has authorized a $131.3 million project, a report said. The project calls for drilling ground water reserves at 35 sites from north of Ashdod to Sderot, and the water carrying salts and other minerals, will be pumped to desalination plants and turned into drinking water, Haaretz said Friday. The salt residue from the process will be pumped out to sea, the paper said. Israel's coastal aquifer is seriously...


Latest Groundwater Reference Libraries

Water Pollution
2013-03-25 12:43:15

Water pollution is the contamination of bodies of water including rivers, oceans, lakes, aquifers and groundwater. Water pollution is when pollutants are discharged directly or indirectly into a body of water without adequate treatment to remove harmful compounds. Water pollution affects the plants and organisms that reside in these bodies of water. In almost all of the cases the effect is damaging not only to individual species and populations, but to the natural biological communities as...

22_319d33a1f9f347feb9c006816dbc1357
2009-07-06 17:58:20

The water cycle (or hydrologic cycle) describes the continuous movement of water above, below, and on the planet. Since the water cycle is in fact a "cycle", there is no beginning or end. Water exists in three states: liquid, vapor, and ice. Although the balance of water on our planet is fairly constant, individual water molecules may come and go. The water cycle is driven by the sun. The sun heats the oceans and allows water to evaporate into the air. The sun also heats snow and ice which...

More Articles (2 articles) »
Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related