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17 September 2025 | Story Martinette Brits | Photo Martinette Brits and Kaleidoscope Studios
GreenerSA
Jeminah Seqela from Food and Trees for Africa demonstrates tree planting as part of the initiative to plant 100 trees on the day.

The University of the Free State (UFS) launched Greener SA, a five-year initiative to plant 400 000 trees across South Africa, at the Paradys Experimental Farm on Friday 12 September 2025. Backed by the Mastercard Foundation through the TAGDev 2.0 programme and RUFORUM, the project brings together government, industry, students, and academics around a shared commitment to sustainability and food security. The launch was marked by the planting of the first 100 trees, a symbolic act that set the tone for the years ahead.

Prof Jan-Willem Swanepoel, Director of the Centre for Sustainable Agriculture, reminded the audience that the UFS is one of 12 African universities entrusted with a $100 million investment in agricultural transformation. “This project is not a hit-and-run – it’s about sustainability, inclusivity, and building value chains that empower farmers and entrepreneurs,” he said. He ended with a parable of a farmhand who could ‘sleep when the wind blows,’ urging everyone to be proactive in preparing for inevitable challenges.

 

Responsibility and partnerships

That call for responsibility was echoed by Elzabe Rockman, Free State MEC for Agriculture and Rural Development, who linked Greener SA to the presidential One Million Trees Programme. She cautioned that planting without accountability leads to wasted effort. “If we plant trees, we want to be sure someone takes responsibility for them,” she said, highlighting the need for fire-resistant species, fruit trees in community gardens, and natural borders to replace vulnerable fencing. Looking at the students from Kovsie ACT who joined the launch, she added: “Jobs are not going to fall from the sky. They will come from agriculture and the environment. Harnessing youth energy is the way forward.”

Industry also pledged its support. Representing Empact Group – the sponsor of the trees – Helena Prinsloo described tree planting as an investment in legacy. “At Empact Group, we believe that doing right by our community and our planet is not just a responsibility. It’s a value that defines who we are and how we lead,” she said. Quoting the proverb that societies grow great when people plant trees whose shade they will never sit in, she added: “Today we are sowing seeds of hope, resilience, and opportunities for generations to come.”

 

Science, vision, and practice

Prof Corli Witthuhn from the Faculty of Natural and Agricultural Sciences placed the launch in a global context, pointing to conflict, inequality, and climate change – and the sobering United Nations report showing that only 20% of the sustainability goals have been achieved. For her, the Greener SA project is a response to urgent global challenges. “We want our students to be globally work-ready,” she said. “That means beyond textbooks, and this farm represents exactly that. We don’t want to produce graduates with degrees, we want to produce graduates who can walk into a lab, into a policy meeting, into a business anywhere in the world and make an impact.”

Her message was supported by expert voices. Guest speaker Prof Ben du Toit from Stellenbosch University explained that agroforestry systems can simultaneously provide timber, food, biodiversity, and resilience. “Agroforestry is not planting trees over here and grazing over there – it’s about integration, so that benefits reinforce each other,” he said.

At the Paradys Experimental Farm, this integration is already underway. Johan Barnard, Farm Manager and Junior Lecturer, described how shaded tree pockets will improve grazing fields and protect water resources, while fruit trees planted in partnership with Kovsie ACT will contribute to student nutrition and new food value chains. “We’re capturing value chains and taking it to the next level so that our students have research opportunities and the farm delivers real outputs,” he explained.

The launch of Greener SA showed that tree planting is about much more than beautification. It is a collective commitment – to resilience in the face of global challenges, to science applied in practice, and to building partnerships that prepare the next generation to make an impact.

News Archive

To tan or not to tan: a burning issue
2009-12-08

 Prof. Werner Sinclair

“Some evidence exists which implies that sunscreens could indeed be responsible for the dramatic rise in the incidence of melanoma over the past three decades, the period during which the use of sunscreens became very popular,” says Prof. Werner Sinclair, Head of the Department of Dermatology at the University of the Free State. His inaugural lecture was on the topic Sunscreens – Curse or Blessing?

Prof. Sinclair says the use of sunscreen preparations is widely advocated as a measure to prevent acute sunburn, chronic sun damage and resultant premature skin aging as well as skin malignancies, including malignant melanoma. There is inconclusive evidence to prove that these preparations do indeed achieve all of these claims. The question is whether these preparations are doing more harm than good?

He says the incidence of skin cancer is rising dramatically and these tumours are induced mostly by the ultra-violet rays.

Of the UV light that reaches the earth 90-95% belongs to the UVA fraction. UVC is normally filtered out by the ozone layer. UVB leads to sunburn while UVA leads to pigmentation (tanning). Because frequent sunburn was often associated with skin cancer, UVB was assumed, naively, to be the culprit, he says.

Exposure to sunlight induces a sense of well-being, increases the libido, reduces appetite and induces the synthesis of large amounts of vitamin D, an essential nutritional factor. The use of sunscreen creams reduces vitamin D levels and low levels of vitamin D have been associated with breast and colon cancer. Prof. Sinclair says the 17% increase in breast cancer from 1981 to 1991 parallels the vigorous use of sunscreens over the same period.

Among the risk factors for the development of tumours are a family history, tendency to freckle, more than three episodes of severe sunburn during childhood, and the use of artificial UV light tanning booths. He says it remains a question whether to tan or not. It was earlier believed that the main carcinogenic rays were UVB and that UVA merely induced a tan. The increase in UVA exposure could have severe consequences.

Prof. Sinclair says the UV light used in artificial tanning booths consists mainly of pure UVA which are highly dangerous rays. It has been estimated that six per cent of all melanoma deaths in the UK can be directly attributed to the use of artificial tanning lights. The use of an artificial tanning booth will double the melanoma risk of a person. “UVA is solely responsible for solar skin aging and it is ironical that tanning addicts, who want to look beautiful, are inflicting accelerated ageing in the process,” he says.

On the use of sunscreens he says it can prevent painful sunburn, but UVA-induced damage continues unnoticed. UVB blockers decrease vitamin D synthesis, which is a particular problem in the elderly. It also prevents the sunburn warning and therefore increases the UVA dosage that an individual receives. It creates a false sense of security which is the biggest problem associated with sunscreens.

Evidence obtained from the state of Queensland in Australia, where the heaviest and longest use of sunscreens occurred, boasted the highest incidence of melanoma in the world. A huge study in Norway has shown a 350% increase in melanoma for men and 440% for women. This paralleled the increase in the use of UVB blocking sunscreens while there was no change in the ozone layer. It did however, occur during that time when tanning became fashionable in Norway and there was an increase especially in artificial tanning.

Prof. Sinclair says: “We believe that sunscreen use does not directly lead to melanoma, but UVA exposure does. The Melanoma Epidemic is a reality. Sunscreen preparations are not the magical answer in the fight against melanoma and the irresponsible use of these preparations can worsen the problem.”

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
7 December 2009

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