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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 trains Physical Science subject advisors from the Northern Cape
2008-01-28

 

The Research Institute for Education Planning (RIEP) at the University of the Free State (UFS) is training Grade 12 Science teachers in preparation for the implementation of the National Curriculum Statement for Physical Sciences this year. The Physical Sciences subject advisors of the Northern Cape Department of Education recently attended a three-day workshop at the UFS Main Campus where the new Grade 12 subject content was discussed. Lecturers from the Departments of Chemistry and Physics at the UFS were also involved in the training sessions. Similar training sessions for 100 Physical Sciences teachers in the Northern Cape will soon take place in Kimberley and Springbok. At the training session were, from the left, front: Dr Matie Hoffman (Department of Physics at the UFS), Ms Ria le Grange, Ms Granny Moatshe, and Mr Chris de Wet (all subject advisors from the Department of Education in the Northern Cape); back: Mr Cobus van Breda (RIEP), Ms Sharon Paulse, Ms Providence Kilelo, and Mr Riekie Willemse (all subject advisors from the Department of Education in the Northern Cape).
Photo: Supplied

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