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20 July 2020 | Story Leonie Bolleurs | Photo Supplied
The view from one of the offices in the Marion Island research station, with fresh snowfall in the interior of the island in the background.

Liezel Rudolph, lecturer and researcher in the Department of Geography at the University of the Free State (UFS), is strongly convinced that the Southern Hemisphere’s past glacial cycles will provide valuable insights to help predict and prepare for future climate change. Climate is changing fast and the magnitude of change we have seen over the last 30 years has taken a hundred or several hundred years to occur in the past. 

It is not only temperatures that are rising, but changes in wind patterns, rain cycles, oceanic circulation, etc., are also observed. As we do not know how the earth will respond or adapt to such rapid and drastic changes in climatic patterns, this poses various threats.

Link between landscape responses and climate change

Rudolph focuses her research on reconstructing the past climate of Marion Island. 

She had the wonderful opportunity to visit the island for the past three years with study and project leaders, Profs Werner Nel from the University of Fort Hare and David Hedding from UNISA, she departed on a ship to Marion Island to conduct fieldwork.They published their research findings of fieldwork conducted in 2017 and 2018.  

According to Rudolph, research in Antarctica, the Southern Ocean, and islands such as Marion Island is very important. South Africa is the only African country with research stations that have the ability to explore these regions.

“Marion Island has many landforms that could only have been created by glacial erosional or depositional processes, with glaciers currently absent from the island. To determine when the island was last in a full glacial period, we date the formation ages of these landforms.”

“In the short time we have been visiting the island, it was impossible to notice any drastic changes in the island climate. That is why we use these very old landforms to tell us more about periods before humans visited the island,” she says. 

Rudolph believes that understanding the link between landscape responses and climate change of the past can help to better predict some of the climate change processes that are currently threatening the planet.

“There’s a principle in geography called ‘uniformitarianism’, whereby we assume that the earth-surface processes we observe today, are the same as those that have been active in the past,” says Rudolph.

As scientists, they thus look at evidence of past geomorphic processes (which remain in the landscape in various forms, e.g. residual landforms, stratigraphic sequences, etc.) to piece together what the past climate was like. In the same way, they also use this principle to predict how certain earth processes will change in the future, along with climate changes.

“In return, we understand how the climate and the earth’s surface interact, and we can better predict how the earth will respond to climate change,” Rudolph adds. 

Society to play its part in climate change

In the long run, we as the public should play our part in readying society for the effects of climate change. 

Rudolph says society can play a positive role in terms of climate change by educating themselves with unbiased, scientifically sound information on the true state of climate change and by responding within their own spheres of influence.

“Don’t leave everything up to politicians and policy. As the public, you can start to make progress by assessing the effects that climate change may have on your industry, business or society, and strategise on how to adapt your processes to deal with these changes.”

“Be responsible with our natural resources, reduce your waste, support local businesses that are sustainable, and volunteer at a local environmental protection/clean-up organisation. All the small efforts will eventually add up to substantial change,” she says. 

News Archive

Prof. André Keet appointed to Ministerial Oversight Committee on Higher Education
2013-01-15

 

Prof. André Keet
Photo: Anja Aucamp
24 January 2013



Prof. André Keet, Director of the Institute for Reconciliation and Social Justice at the university, has been appointed as member of the Oversight Committee on the Transformation of South African Universities. He is one of seven committee members that were appointed by the Ministry of Higher Education and Training to monitor progress on transformation in public universities.

The committee will advise Dr Blade Nzimande, Minister of Higher Education and Training, on policy to combat racism, sexism and other forms of unfair discrimination in public higher education. The committee will also advise on the role of universities in promoting the development of a free, fair and non-discriminatory society beyond the world of the academia.

The senior leadership of the university has welcomed the appointment of Prof. Keet and said with his extensive experience as a former Commissioner on the Commission for Gender Equality and as the Director of the university's Institute for Reconciliation and Social Justice (which was formed as one of several initiatives taken by the senior leadership in the aftermath of the Reitz incident), Prof. Keet will be a valuable member of the committee.

"Prof. Keet has the experience and expertise to guard the autonomy and academic freedom of universities, thus avoiding this committee from becoming a political intervention in the affairs of the higher education sector," said Prof. Jonathan Jansen, Vice-Chancellor and Rector of the university.

Honoured to be elected on the committee, Prof. Keet said he is ready to serve the national interest in the transformation of South African universities. "The appointment is also a compliment to the university and to its exceptional experience in the process of transformation."

Prof. Keet will serve on the committee for a period of three years. The other members of the committee are Prof. Malegapuru Makgoba, who will serve as chairperson, Dr Mvuyo Tom, Ms Nazeema Mohamed, Ms Zingiswa Losi, Mr Joe Mpisi and Prof. Shirley Walters.

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