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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

Prof Jeffrey Sachs presented with honorary doctorate at Spring Graduation Ceremony
2015-10-01

Prof Jeffrey Sachs (centre) with Prof Philippe Burger,
Head of Department: Economics (left), and
Prof HJ Kroukamp, Dean of the Faculty of Economic and
Management Sciences (right).
Photo: Charl Devenish

“Quality education is the best accelerator for sustainable growth. Universities have a unique role to play in this regard,” Prof Jeffrey Sachs said during a lecture he presented at the University of the Free State (UFS) Faculty of Economic and Management Sciences. He gave an insightful overview of the new Sustainable Development Goals (SDGs) of the United Nations. The 17 SDGs replace the Millennium Development goals of the past 15 years. In a major achievement, 193 countries will sign the goals at the United Nations (UN) in New York on 25 September 2015.

Prof Sachs is the director of The Earth Institute, Quetelet professor of Sustainable Development, and professor of Health Policy and Management at Columbia University. He is also a special advisor to the UN Secretary-General Ban Ki-moon on the Millennium Development Goals, and director of the UN Sustainable Development Solutions Network. Another accolade now added to his résumé is an honorary doctorate in Economics conferred on him by the UFS at the Spring Graduation Ceremony on 17 September 2015 for outstanding achievements and contribution to academia.

“South Africa is not achieving sustainable development. It has the highest inequality in the world with high unemployment among the youth. Quality education is the best accelerator for growth,” Prof Sachs said. He used the high education investment in Korea as an example of that country’s growth. Prof Sachs added that the government cannot achieve the SDGs on its own. “It is important for the country and universities to take on the goals. Universities can apply pressure, influence and provide solutions.”

 

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