Yet as Sana'a's water basin continues to deplete, Mohammed's family, like so many others throughout the region, are still digging deeper and deeper to find the water they need.
Most of the water in the basin stays there and eventually replenishes the lakes.
Lawrence River Basin Water Resources Compact, which was signed into law by President George W. Bush on October 3, 2008.
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Its Ohio River basin water-quality trading project will allow those facing high pollution-control costs to buy reduction credits from those whose costs are lower.
In an effort to tackle the drought which was parching the rivers and their adjacent wetlands, it took control of the basin's water from the states and gave it to the newly established Murray-Darling Basin Authority.
Ms Li said she had resorted to keeping a basin of water in the house in the hope it might act as an air purifier.
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Water experts applaud the new policy, saying it puts a proper emphasis on conservation: lower-basin states must now pay attention to the water they have, instead of plotting to get still more from the upper-basin states.
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New York City gets roughly half its water from the Delaware River Basin, a key area for hydraulic fracturing.
Contributions were drawn from the fields of hydrological sciences, freshwater policy, international basin management and operational water supply.
Farmers, especially cotton and rice growers in those upstream states, account for 83% of the basin's consumed water.
His talks with Morsy included regional concerns as well as bread-and-butter issues like livestock imports, industrial development and water rights in the Nile River basin, Ali said.
Mr. DEREK SCHEER (Clean Wisconsin): Because it's such a large portion of the world's freshwater and it is a thirsty world, there is more and more concern that folks will be coming after the Great Lakes as a source of drinking water outside of the Great Lakes basin.
More than four-fifths of the river water taken from the Murray-Darling basin is used for agriculture.
In 2007, however, the Howard government passed an act that allowed it to muscle in on water management in the Murray-Darling basin, constitutionally a state responsibility.
Climate change is likely to cut rainfall in the Great Lakes basin, while ever more water will be drawn from the lakes by a rising urban population.
The water temperature underground, in the ancient Cheshire Basin reservoir, is about 100C (212F).
Under the new rules, a few communities just outside the basin will be able to request water.
Be it a transboundary river basin or aquifer, or a water pump built for a rural village, examples of cooperation apparently abound.
In Colorado's San Juan basin, for example, the water is saline and must be reinjected into wells a safe distance away from any aquifer.
After independence, nine countries in the Niger River Basin in Africa created a joint river basin authority to cooperatively manage their joint water resources.
Throughout the basin 32 percent of rivers and streams have water quality that isn't impaired, 40 percent are slightly impaired, 23 percent are moderately impaired, and 5 percent are severely impaired, the report said.
Authorities in the four states spanning the basin each allowed farmers to take almost as much water as they wanted.
There's plenty of water for cooling and, apart from fans of the Great Basin National Park, no one around to complain.
Many countries in the Mediterranean basin could face a future of significant food and water shortages as climate change bites and deserts spread.
In a project that covers several parts of arid and semi-arid China Beijing, Hebei, Qingdao and Shenyang, as well as the Hai basin and the smaller Turpan basin the World Bank has been promoting water conservation.
This tells farmers how much water they can consume without adversely affecting the ecosystems in their river basin.
The basin at Cold Ash Hill in Thatcham will collect excess water from the fields and filter it into the sewers.
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But images provided by the National Geospatial-Intelligence Agency showed that there was standing water in the vicinity, suggesting that the compound sat in a flood basin.
The practice caught on elsewhere, helping the farmers of the basin to get through the recent long drought using far less water than before yet with no reduction in output.
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