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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

Boyden observatory celebrates its achievements
2004-10-05

The red carpet will be rolled out and champagne glasses filled tonight when the Boyden Observatory outside Bloemfontein will launch the first phase of the new science centre.

This phase, which was completed earlier this year, consists of a new auditorium, reception area and paths which connect educational visiting points on the Boyden terrain.

“Over the past two years the Boyden Observatory has been re-sited as a research, educational and public facility. The new facilities are now being utilised for educational and public programmes. The 1,5m Boyden telescope has also recently been upgraded and is used for research purposes,” says Dr Matie Hoffman from the University of the Free State’s (UFS) Department of Physics, who is responsible for the management of the centre.

“The Boyden Observatory is a unique facility of the UFS - we are one of the few universities in the world who has its own observatory,” says Dr Hoffman.

“The main purpose of the science centre is to create enthusiasm for science amongst the public. The centre also has a great educational function and focuses specifically on the improvement of the quality of science education in the Free State,” says Dr Hoffman.

Fund-raising for the planned second phase of the science centre, which will consist of interactive in- and outside exhibition areas, will also start tonight. “After the completion of the second phase the Boyden Observatory will probably become the most accessible and public-friendly observatory in the country and a great asset for the Free State Province,” says Dr Hoffman.

A small robotic telescope, which will be controlled from the University College Dublin in Ireland, will also be installed at the Boyden Observatory this year.

“Just as this year is a significant one for the UFS with its centenary celebrations, so it is also a significant one for the Boyden Observatory. The Harvard University in the United States of America started with the construction of the original 1,5 m telescope in its original form 100 years ago, the telescope was put in place at Boyden 70 years ago and Mr Uriah Boyden – the person who donated the money with which the Boyden Observatory was constructed, was born 200 years ago,” says Dr Hoffman.

The first phase of the science centre was built with funds sponsored by the AngloGold Fund, the Shuttleworth Foundation, the Charl van der Merwe Trust and the Lila Theron Trust. Donations from the Friends of Boyden Observatory and other individuals also contributed to the success of the project.

Those who are interested in educational tours of the science centre can contact Dr Hoffman at (051) 401-2322.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
5 October 2004

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