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Where Has All the Water Gone? |
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Where Has All the Water Gone?
If you think as far back as prehistoric times to the days of the caveman, could you imagine sharing a meal with our ancient ancestors? How about a drink? You may be surprised to know that this isn’t such an implausible suggestion. The water that’s on earth today is the same water that was on earth millions of years ago: the amount of water on earth today is the same amount of water that was present when the earth was created. This water is constantly being recycled through evaporation, condensation, precipitation and collection, in which the water occurs in its various forms: liquid, vapour or ice. Water also undergoes a natural filtration process of either filtering through the ground or evaporating only water atoms, therefore leaving contaminants behind.
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Next time you have a glass of water, take a moment to think how far that water has travelled before it reached you.
The same amount of water is still around at any given time, even during a drought, it just may be in another form. It may seem like we have less water now than ever, but that is because more water atoms are taking on the form of vapour rather than liquid. This doesn’t mean the water has disappeared, but that Mother Nature has simply distributed it elsewhere; through the water cycle, water may have transferred from one water body (where it evaporated from) to another lake, river or ocean (where it is collected again). Water is a very precious commodity that we, as human beings, need to value. Monitoring the impacts that humans are having on our water supplies and finding ways to lessen those impacts is a venture worth investing in. We need to take care, because although filtration will naturally occur, at what level of contamination will this become too much for Mother Nature to handle given the time it takes for the process to occur? Remember, the water we contaminate today is the water we will be drinking tomorrow. |