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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

Wayde runs 100 m personal best in Slovenia
2017-06-21

Description: Wayde runs 100 m personal best in Slovenia Tags: Wayde runs 100 m personal best in Slovenia

Wayde van Niekerk is in great form leading up to the
World Championships in London in August.
Photo: Charl Devenish

“This also bodes well for my two main distances." This is what Wayde van Niekerk said according to www.iaaf.org, after running a personal best time of 9.94 in the 100 m in Velenje, Slovenia, on 20 June 2017. The Kovsie athlete improved his previous best by 0.04 seconds at the 22nd International Athletics Meeting.

Van Niekerk was referring to the other distances in which he excels – the 200 m and 400 m. The 400 m world record-holder said he was pleased with his latest run: "It's my best time and I'm glad the competition ended the way I wanted it to.”

National 200 m record and world’s fastest in 2017
His feat in the 100 m was his latest success, as he recently became the national record-holder in the 200 m again, and also the fastest man on the planet in this distance in 2017. After he ran a 19.90, the world’s fastest this year, when he won the South African title in Potchefstroom in April, the American Christian Coleman (19.85) improved on that.

However, Van Niekerk ran a 19.84 in the 200 m at the Racers Grand Prix in Kingston, Jamaica, on 11 June 2017. This was 0.06 seconds quicker than his personal best, and 0.03 seconds better than Anaso Jobodwana’s national record of 19.87.

Same pace a second time in a week
It was also the second time in a week that he ran a 19.84 in the 200 m. This after he did it on a temporary built track at the Boost Boston Games on 4 June 2017. The race was run on a straight street course and was therefore not officially recognised as a record.

He seems to be in good shape leading up to his attempt to run a double, his favourite 400 m and the 200 m, at the World Championships in London, England, in August.

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