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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

Young researcher from UFS on SAYAS executive committee
2014-10-28



Dr Aliza le Roux
Photo: Sonia Small
Dr Aliza le Roux from the Department of Zoology and Entomology on the UFS’s Qwaqwa Campus is one of ten young scientists who was recently inaugurated as a new member of the South African Young Academy of Science (SAYAS). Not only was she inducted into the society this past October, but she was also elected to serve on the executive committee for SAYAS.

Dr Le Roux’s research focus is on cognitive ecology, behavioural ecology and zoology. She has expressed her excitement about the new position, and is already developing new ideas with her new colleagues on drawing more young people into the South African scientific community.

This position provides a regional and international platform to raise the profile of science in general, and Le Roux hopes to be active in SAYAS’s new mentorship collaboration with the New York Academy of Sciences, and to introduce new methods of scientific outreach using social media. Inspired by the students on the Qwaqwa Campus, Dr Le Roux hopes to specifically target relatively isolated rural campuses in SAYAS’s activities.

Prof Corli Witthuhn, Vice-Rector: Research at the UFS, said, “Aliza le Roux is an outstanding young scientist on our Qwaqwa Campus. I am very excited about the young researchers on our Qwaqwa Campus with Aliza as one of the leaders, and I am looking forward to what else they can achieve in the next five years.”

SAYAS was launched in October 2011 with 20 founding members as a mechanism to propel South Africa’s young scientists to fully participate in relevant local and international research and development agendas. It provides a national platform where leading young scholars from all disciplines in the country can interact, and also access international networking and career development opportunities.

SAYAS contributes primarily to the achievement of the national strategic priority of strengthening the skills and human-resource base of the country. Its particular niche is to focus on strengthening high-level skills among young scientists and the promotion of scientific excellence.


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