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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

Agri-pedia a valuable tool for the farmer
2013-10-03

 

03 October 2013

Agri-pedia, an internet-based facility to assist the farmer in a whole array of topics, was launched at the university.

This ground-breaking new education tool was developed by die UFS in partnership with the private sector to bridge the gap between agricultural science and successful farming. Experience of more than a thousand years is pulled together in the project.

Topics vary from farm management and planning, market information, geographic information and maps, to beekeeping, flower production, the farm home and many more.

Prof Jonathan Jansen, Vice-Chancellor and Rector, said at the Agri-pedia launch it is a myth that education only happen in schools. At Nampo he was amazed to see the level of education on farms, done by farmers. “Another myth is that education is the task of government – there is a tardiness and lack of concern.

“You don’t change schools with government, but with partnerships. Agri-pedia will not be possible without partnerships.”

The launch of Agri-pedia happened against the background that food security in the world is under threat. About 840 million people are chronically experiencing malnourishment. Included in this figure are 200 million children under the age of 15 in the developing world. By 2020 nearly 70% of people suffering malnutrition will live in sub-Sahara Africa and in South Asia.

The agricultural sector must be assisted to shift from subsistence farming to sustainable food production and economic development.

For more information, visit www.agripedia.co.za or send an email to admin@agripedia.co.za.

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