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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

Meet Dr Olihile Sebolai, Prestige Scholar
2013-07-15

 

Dr Olihile Sebolai
Photo: Sonia Small
15 July 2013


Dr Olihile Sebolai, lecturer in the Department of Microbial, Biochemical and Food Biotechnology, was selected to the Vice-Chancellor’s Prestige Scholars Programme (PSP) in 2011. Dr Sebolai recently returned from a six month research visit to the University of Birmingham at the invitation of Professor Robin May, Lister Reader and Chair of Infectious Diseases.

This enabled Dr Sebolai to acquire and develop necessary pathobiological skills pertinent to his work on the pathogenesis of Cryptococcus neoformans. “During my time in Birmingham, I benefitted from the experiences of three senior post-doctorates and a principal investigator, who were all working in (Prof May’s) laboratory,” says Dr Sebolai.

“By way of observation, I was greatly impressed by the level of collaboration between Prof May and his network, which enables him to move out of a silo and effortlessly create a global footprint."

The next phase of Dr Sebolai’s early career development takes him as Fulbright Scholar to the University of Missouri in Kansas City, in September 2013. Here Dr Sebolai will spend time in the laboratory of Alexander Idnurm. The purpose of this visit is to study virulence mechanisms in fungi, which are a low order of eukaryotic organisms, and to identify potential drug targets.

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