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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

Well-known alumni honoured
2013-10-24

 

From the left are: actor Hannes van Wyk, Judge Faan Hancke and his wife Benita at the Kovsie Alumni Awards.
Photo: Elmada Kemp
24 October 2013

The actor and film maker, Hannes van Wyk, known for his role as Krynauw du Boisson in the M-Net soapie Egoli, was named Kovsie Alumnus of the Year during the Kovsie Alumni Awards. He and six other former Kovsie students and staff were honoured at this gala event for their outstanding achievements and contributions to the UFS during 2012.

Van Wyk, who completed his BAEd in 1990 at the University of the Free State, was honoured for his contribution to, and development of the South African Film and Television industry. This includes his work as producer, writer, researcher and director of companies such as PACOFS, M-Net and the SABC.

The actor wasn’t the only person in the public eye to be celebrated at the event.

The well-known columnist, Hanlie Retief, who interviews the top newsmakers of the country every week for Rapport, was recognised with a Cum Laude Award. She was honoured in this category together with Paul Colditz, Chief Executive Officer of FEDSAS, the national representative organisation of governing bodies, and Judge Violet Phatshoane, founder of Phatshoane & Henney Attorneys and judge in the High Court of South Africa.

Hanlie told the audience that her degree from Kovsies opened doors for her. She spoke about the interview she had in those days with the athlete Zola Budd, her first story to be published in the university publication, Bult.

Prof Johan Willemse, who is internationally known as an agricultural economist, and Dr Philemon Akach, known for his contribution to the development of Sign Language on the continent, were bestowed with the Alumni Award for outstanding service to the UFS.

The Kovsie Ambassador Award was presented to Judge Faan Hancke, Extraordinary Professor in the Faculty of Law at the UFS. As a former Kovsie, he served more than 12 years as Council member during his career and is still involved with the Alumni Trust.

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