An estimate of the global distribution of water
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| water source | volume of water in cubic miles | percentage of total water |
|---|---|---|
| Groundwater | 5,614,000 | 1.69 |
| Soft | 2,526. 000 | 0.76 |
| Saline | 3,088 000 | 0.93 |
| Soil moisture | 3959 | 0.001 |
How much water is there in the world?
how much water is it According to a recent study by the U.S. Geological Survey approximately 326 million cubic miles (1.332 billion cubic kilometers). About 72% of the earth is covered with water, but 97% of that water is salty seawater and is undrinkable.
What percentage of the water is underground?
Note that of the world’s total water supply of approximately 332.5 million cubic miles of water, over 96% is saline. And of all freshwater, more than 68 percent is trapped in ice and glaciers. Another 30 percent of freshwater is in the ground.
Are we losing water on Earth?
Water in the form of vapor in our atmosphere could potentially escape from Earth into space. … While our planet as a whole will never suffer from water shortages, it is important to remember that clean fresh water is not always available where and when people need it. In fact, half of the world’s freshwater occurs in just six countries.
How much clean water is there left in the world?
3% of the water on earth is fresh water. 2.5% of the Earth’s freshwater is unavailable: trapped in glaciers, polar ice caps, the atmosphere and heavily polluted soils, or too far underground to extract it at an affordable cost. 0.5% of the water on earth is available fresh water.
Is there groundwater everywhere?
In fact, there is more than a thousand times more water in the ground than in all of the world’s rivers and lakes. Water lies beneath the earth’s surface almost everywhere, beneath hills, mountains, plains and deserts. … Groundwater is part of the natural water cycle (see our interactive water cycle graphic).
Do we drink groundwater?
Groundwater provides drinking water for 51% of the entire US population and 99% of the rural population. Groundwater helps in the production of our food. 64% of groundwater is used for irrigation to grow crops. … Groundwater is a source of replenishment for lakes, rivers and wetlands.
