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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

Kovsie student on his way to the record books
2011-10-12

 

Hermann van Heerden
Photo: Gerhard Louw

Ten hours. That’s how long Kovsie student Hermann van Heerden held a stationary wheelie in his wheelchair by lifting the front wheels of his wheelchair. The second-year disabled student now stands to get his name in the Guinness World Record Book for the longest stationary wheelie in a wheelchair.

Starting at 03:15 and holding on until 13:15 on Tuesday, 11 October 2011, Hermann achieved what he set out to do. Now he is waiting for the Guinness World Record office to verify his world-record attempt.

The minimum time set for Hermann to achieve a Guinness World Record was four hours, but the B.Ed. student went six hours over this time, wheeling non-stop for ten hours. During this time the Kovsie student had no food or water over his lips, nor was he allowed to go to the bathroom.

Hermann’s Guinness World Record attempt forms part of the ten-year celebrations of the Unit for Students with Disabilities (USD) at the University of the Free State (UFS).

Accomplishing his record attempt, a tired Hermann said the first thing he wanted to do was to eat. Hermann, who was born with spina bifida, a developmental congenital disorder, said he did not have a lot of preparation for his world-record attempt, as he had always been in a wheelchair.

According to the Guinness World Records press office, the closest record to the one Hermann set out to achieve, is for the longest continuous wheelie in a wheelchair. This was achieved by Michael Miller from the USA who covered a distance of 16, 12 km on the rear wheels of his wheelchair.

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