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- Since
the earth's formation over 4.5 billion years ago, no new water has
been created. The same amount of water has been continually filtered
and re-filtered, cycled and recycled by man and nature.
-
Life on earth began in water, and the existence of life on the "water
planet" is dependent upon the hydrocycle.
- The
hydrologic cycle or "water cycle" continually replenishes this supply
through precipitation, runoff, percolation, evaporation, condensation,
and once again precipitation.
- Water
is our most precious resource. One cannot live without water. It constitutes
two thirds of our body weight and covers two thirds of the planet.
- The
majority of the existing water is not fresh water, but sea or salt
water. Of the earth's 326 million cubic miles of water, only 3% is
fresh water.
- Fresh
water is truly a rare commodity.
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