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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

Powering the future
2014-07-10

 

Kovsie students with the organisers at the African Student Energy Summit.

Photo: Rirhandzu Marivate

Powering the future. This was the theme of the first-ever African Student Energy Summit. The event was recently hosted by the Cape Peninsula University of Technology (CPUT) in Cape Town. The summit was even more unique, since it was part of a global series of Energy Summits held simultaneously in the US, Mexico and Scotland.

Sixteen Kovsies, together with students from across South Africa, Nigeria, Ghana, Zimbabwe, DRC, Zambia and Cameroon united at this event. The main goal: to confront pressing energy challenges faced by our continent. During roundtable discussions, these students brainstormed issues such as the accessibility of energy, as well as driving efficiency and sustainability through the use of green energy.

Antoinette Nel, a Kovsie honours student in Spatial Planning, said, “Interacting with different speakers and students on green energy possibilities enhanced my understanding of how much can be done to change the current status quo on energy in Africa.”

During a student parliamentary session, the participants had to come up with recommendations on sustainable energy. These will be compiled in a document and sent to the African Union (AU).

“My biggest highlight was understanding the need for energy by most Africans, not for lighting or industrialised activities but rather for daily livelihood, for basic rights and services such as cooking, health and education,” said Justman Suh, also an honours student in Spatial Planning at Kovsies.

“We are creating spaces to challenge Afro-pessimism in Africa through these platforms,” Dr Elizabeth Rasekoala, Chairperson of Green Shift Africa, said during the summit. 



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