All life as we know it on Earth trades off a source of complex carbon molecules, such as amino acids - just as it needs water and energy.
Assuming that some form of Greek government emerges out of the political discussions now under way in Athens, it is now almost certain that Greece will get the official money it needs to stay above water a few more weeks, notably the next tranche of last year's EU-IMF bailout.
Arizona's actions are politic rather than generous: it needs a market to justify storing water it cannot use.
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When Nevada needs the water, it takes out of the river its share, plus some of Arizona's unused allotment, and issues a credit.
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It may improve or even transform customer service or remote plant management, but it does not disrupt the basic function of providing water to people, nor will it transform customer needs such as drinking, showering or washing their SUVs.
Just outside Lima, Peru, a billboard provides drinking water to whoever needs it - mainly, its neighbours.
We will also look at trade effluent because it is the dirty water and normally needs to be licensed and manage very carefully.
Indeed, India needs more water storage: it has 200 cubic metres per person, compared with 1, 000 cubic metres in China.
Moreover, for water cooperation to be successful and sustainable, it requires a common understanding of the needs and challenges surrounding the issue of water.
In Guernsey, salt can only be used outside the water catchment area because it can contaminate the water supply, so the de-icer CMA needs to be used.
They worry that when frack water flows back out of the well that it needs to be treated and processed.
Water might become the next oil because everyone needs it and the demand for it far exceeds supply.
It is the source of water-supply of agricultural and everyday needs.
The treatment is thought to work because applying sugar to a wound draws the water away, thereby starving the bacteria of what it needs to grow.
Glaciers, ice fields, and snowpack store an immense amount of fresh water and gradually release it to meet year-round needs for irrigation, drinking, sanitation, industrial processing, clean energy, and food production.
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She said the council also needs to assist Anglian Water in an advisory capacity to help it solve the problem.
It needs to sit around and cool down for several months inside specially designed pools of water.
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Iraq's water authority now has only half of the 10, 000 staff it needs, and most of these are inexperienced.
"Every individual needs to be sensitive to the value of water and to start treating it with respect, " Cosgrove said.
At first glance, it might seem obvious that it was through the action of flowing water (fluvial), but the Curiosity team needs to rule out the possibility that these rocks were deposited by the wind (aeolian) or by some kind of surge, such as the fast-moving clouds of gas and rock that will often plummet down the sides of particular types of volcano (a pyroclastic surge).
"It might surprise some to learn that a species so well adapted to living around water actually needs to be taught how to swim, but that's exactly what happens, " he said.
It needs to be clinically clean, have sealed concrete floors with several large drains (it takes 8 gallons of water to make 1 gallon of beer), a spacious refrigerated room and copious utility connections.
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