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20 March 2018 Photo Pexels
Water footprint important but misunderstood indicator
Water footprinting is the future of water conservation
The Water Footprint (WF) of a product, process or person provides an indication of how much fresh water is used, both direct and indirect, to produce a product, drive the process or lead a lifestyle. Although it is a very important indicator it is often misunderstood. Popular media contribute to this misunderstanding as they often use the WF to illustrate the large quantities of water used to produce a product without explaining what the footprint actually means.  

An example is a single kilogram of beef that has an average global WF 15 415 litres. This indeed sounds scary, but when one places it in context, the total WF includes 14 414 litres green water, 550 litres blue water and 451 litres grey water. Green water is the evapotranspiration of precipitation (rain), blue water is the fresh water from dams, rivers and underground sources, while grey water is the amount of fresh water required to dilute polluted water to acceptable levels.

According to Frikkie Maré, a lecturer at the Department of Agricultural Economics at the University of the Free State (UFS), the WF concept provides a new look at water conservation and sustainability. “Although the WF is not an indicator of sustainable water use, it is a useful tool to calculate total water demand and is used in the estimation of sustainability. Traditionally, water conservation was focused on the direct water use of individuals (time taken to shower, leaking taps etc.), but the WF now provides a tool to focus attention on total water demand.”

The Water Footprint Network assists individuals with this new trajectory on the water conservation front with the personal water footprint calculator that allows individuals globally to determine their personal water demand through their direct and indirect water usage. Maré believes this can cause the necessary paradigm shift in the aqua status quo by creating awareness among consumers on their total water demand.

With Water Week underway from 17-23 March 2018, UFS students and staff members are urged to make use of the personal water footprint calculator in order to become aware of the real importance of fresh water in our everyday lives.

News Archive

UFS supports SAASTA in science initiative
2010-08-27

Romeo Motsie, Michelle Baadjies, Puleng Phalole and Thato Ntsebeng from the winning school, Unicom Primary School (Tweespruit) with Susan Usher, their teacher.

The National Astronomy Quiz for Grade 7 learners was recently hosted at the Boyden Science Centre, which is managed by the University of the Free State’s (UFS) Department of Physics. It was also Boyden and the UFS’s Department of Physics that coordinated the Free State leg of the competition. The Free State Department of Education was also on board to ensure smooth arrangements for the preliminary, as well as the first two official rounds of the competition.

The competition is hosted by the South African Agency for Science and Technology Advancement (SAASTA), an agency of the National Research Foundation (NRF).

Ninety schools from all over the Free State took part in the first official round. Eighteen schools qualified for the second round, once again with a balanced geographic coverage of the province.

During the second round, eight schools made it to the third round. Two of these schools were from Bloemfontein and the other six from other towns and rural areas in the Free State.

The third round and provincial finals took place at the Boyden Science Centre. The schools qualifying for the final round were Hennenman Primary School, Unicom Primary School (Tweespruit), Voorwaarts Primary School (Kroonstad) and Fichardt Park Primary School (Bloemfontein).

As a pleasant surprise, Unicom Primary School, a less well-known school from a smaller town, won the Free State finals. It was the first time this had happened since the inception of the competition.
 

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