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26 March 2018 Photo Pixabay
Back to the drawing board to save water
We’ve managed to damage nature’s ‘filter’ with air, ocean, and soil pollution, and by destroying wetlands.

Dr Cindé Greyling, a University of the Free State (UFS) DiMTEC (Disaster Management Training and Education Centre for Africa) alumni, studied drought mitigation with a strong focus on communicating important water-saving information. 

Can we run out of water?
Yes, and no, says Dr Greyling. “To our knowledge, water is not ‘leaking’ through our atmosphere. We have what we have, but that doesn’t mean we will have enough clean, fresh water forever. Nature has a magnificent way of purifying water through the water cycle. We, on the other hand, must use a lot of money and energy to purify water. Also, we’ve managed to damage nature’s ‘filter’ with air, ocean, and soil pollution, and by destroying wetlands. The other problem is a simple supply and demand scenario. More people will need more water, but not only that, population growth calls for industry development and increased food supplies – all of which require more water.”    

A war over water
Besides some Hollywood impressions, it is difficult to imagine a war over water, but it is possible. “Some experts are convinced that we are heading there, and others claim that such tensions already exist. Personally, I don’t favour these kinds of shock tactics (or truths) – social research has shown us that it rarely leads to behavioural changes. We can learn a lot from what was has been done in Cape Town. Although we all think people were bombarded with ‘Day-Zero’-scares, they were actually encouraged to adapt their behaviour with a communication campaign that hardly ever used the term ‘Day-Zero’. This approach mobilised citizens to reach record lows of water usage.” 

Adapt a new normal
Dr Greyling encourages the “new normal” set in motion by Capetonians. “Water consciousness is needed, even when the rain comes again. We’ve taken water for granted for too long. As consumers, we have the power to turn this situation around – drop for drop. Be aware about the amount of water you use, how you use it, and for what. Keep in mind that any wastage and pollution (of ‘dry’ things) also wastes and pollutes water. Generally, we need to behave better regarding consumption.”  

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Executive members of ORSSA visit the UFS
2009-11-23

Here are, from the left: Prof. Pieter Blignaut, Prof. Hennie Kruger, Ms Marthi Harmse and Dr Anelize van Biljon. Prof. Blignaut and Dr Van Biljon are from the Department of Computer Sciences and Informatics at the UFS.
Photo: Supplied
 
The Department of Computer Sciences and Informatics at the University of the Free State (UFS) recently received a visit from Prof. Hennie Kruger from the Department of Computer Science and Information Systems at the North-West University (Potchefstroom Campus) and Ms Marthi Harmse from SASOL (Secunda). During this visit they had a discussion on operational research. Members of the Departments of Computer Sciences and Informatics, Mathematics and Applied Mathematics and Statistics and Mathematical Statistics and Actuarial Science at the UFS attended this discussion. Both Prof. Kruger and Ms Harmse serve on the Executive Committee of ORSSA (Operational Research Society of South Africa).

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