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05 September 2023 | Story Leonie Bolleurs | Photo Supplied
Prof Lesley Green
Prof Lesley Green was announced the winner of the 2023 ASSAf Humanities Book Award in the category ‘Established Researcher’. She delivered a lecture on her book: Rock. Water. Life: Ecology and Humanities for a Decolonial South Africa.

A group of more than 100 academics and students from universities across South Africa and abroad attended the virtual lecture by Prof Lesley Green, winner of the 2023 ASSAf Humanities Book Award in the category ‘Established Researcher’, who discussed her cross-cutting book, titled: Rock. Water. Life: Ecology and Humanities for a Decolonial South Africa. 

The lecture is part of a series focused on the Humanities Book Awards, offering award recipients a platform to discuss the motivation behind their books, the societal impact of their work, and the personal influences that shaped their text. Prof Reddy said that academics and students can anticipate a series of humanities book award lectures in the coming months. 

Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation at the University of the Free State (UFS), member of the Academy of Science of South Africa (ASSAf), and member of the Book Award adjudication panel, facilitated the recent (29 August 2023) online 2023 ASSAf Humanities Book Award Lecture. 

Prof Green, Professor of Anthropology and the Director of Environmental Humanities South (EHS) at the University of Cape Town, was announced the winner of the 2023 ASSAf Humanities Book Award in the category ‘Established Researcher’, for which ASSAf received 31 nominations. She received the award at the end of March this year during a ceremony at the Vineyard Hotel in Cape Town.

The first ASSAf Book Prize was awarded in 2017, and since then ASSAf has conferred the award on an individual every two years to recognise and celebrate the significance and impact of well-written scholarly writings on human knowledge and intellectual efforts in South Africa. 

Prof Reddy characterised Prof Green's specific work as an outstanding book that makes a formidable contribution to the field.

Justice-based environmental sciences 

Prof Green’s research centres on justice-based environmental sciences in South Africa, with a particular focus on the relationship between knowledge and democracy in the Global South – a central theme in her award-winning text.

In the three parts of her book, ‘Past Present’, ‘Present Futures’, and ‘Futures Imperfect’, Prof Green explores the interwoven nature of the past, present, and future. Within these three parts, she delves into the fascinating array of identity markers, inequality, racism, colonialism, and environmental destruction in South Africa. 

Prof Reddy noted that the text asserts a need for environmental research and governance to evolve, contributing to addressing South Africa’s deep history of racial oppression and environmental exploitation. “The book also offers an in-depth engagement of environmental conflict, shedding light on matters often overshadowed by daily concerns in contemporary South Africa,” he added. 

The book, linking the humanities and social sciences with the natural sciences and applied sciences, touched on an array of important topics, including the history of contested water access in Cape Town, struggles over fracking in the Karoo, the call for the decolonisation of science (#ScienceMustFall), land restitution versus the politics of soil, contests over baboon management, and the consequences of sending sewage to urban oceans. 

Prof Green has observed the landscape of environmentalism for a couple of years and noticed a series of struggles. “Typically, these conflicts were being presented in highly polemic ways, often showcasing tremendous tension between academic environmentalism and activists on the ground. I noticed recurring patterns – what was being presented as the preferred form of environmentalism was not something I could support. For example, the frack-free Karoo campaign. It left me quite uncomfortable due to the erasure of Khoi and San presence in the Karoo,” she added. 

“So, what kind of environmentalism could I get behind? Questions around a just environmental governance begin to arise for me.”

Property, #ScienceMustFall, and black environmentalism 

During the discussion, Prof Green shared particular images from each section of her book that caused her to pause and reconsider her stance on the type of environmentalism she could support.

“We inherited a way of thinking about the world that was separated from nature and society. We have challenged that division of nature and society in respect of race and racism and sex and sexism, but we have not brought that critique to bear on how we relate to the world. Somehow, under neo-liberal governance, we find ourselves in this space where economics and finance are seen as the hero that will bring it all together. 

These comments merely scratched the surface of Prof Green’s insights into her book – which Prof John Higgins, Emeritus Professor who formerly held the Arderne Chair in Literature at the University of Cape Town (now Senior Research Scholar at UCT), referred to in his closing remarks as a rich description of a magnificent book. According to him, this scholarly book not only circulates and makes knowledge public, but also provides an opportunity to question that very knowledge. 

This marked the first instance where ASSAf combined book selection with a discussion on the chosen book, underscoring the value of scholarly literature.

- In the Emerging Researcher category, Dr Rick de Villiers from the UFS Department of English was a shortlisted candidate for his book, titled: Eliot and Beckett’s Low Modernism: Humility and Humiliation. 

News Archive

Carbon dioxide makes for more aromatic decaffeinated coffee
2017-10-27


 Description: Carbon dioxide makes for more aromatic decaffeinated coffee 1b Tags: Carbon dioxide makes for more aromatic decaffeinated coffee 1b 

The Inorganic Group in the Department of Chemistry
at the UFS is systematically researching the utilisation
of carbon dioxide. From the left, are, Dr Ebrahiem Botha,
Postdoctoral Fellow; Mahlomolo Khasemene, MSc student;
Prof André Roodt; Dr Marietjie Schutte-Smith, Senior Lecturer;
and Mokete Motente, MSc student.
Photo: Charl Devenish

Several industries in South Africa are currently producing hundreds of thousands of tons of carbon dioxide a year, which are released directly into the air. A typical family sedan doing around 10 000 km per year, is annually releasing more than one ton of carbon dioxide into the atmosphere.

The Inorganic Chemistry Research Group in the Department of Chemistry at the University of the Free State (UFS), in collaboration with the University of Zurich in Switzerland, has focused in recent years on using carbon dioxide – which is regarded as a harmful and global warming gas – in a meaningful way. 

According to Prof André Roodt, Head of Inorganic Chemistry at the UFS, the Department of Chemistry has for the past five decades been researching natural products that could be extracted from plants. These products are manufactured by plants through photosynthesis, in other words the utilisation of sunlight and carbon dioxide, nitrogen, and other nutrients from the soil.

Caffeine and chlorophyll 
“The Inorganic group is systematically researching the utilisation of carbon dioxide. Carbon dioxide is absorbed by plants through chlorophyll and used to make interesting and valuable compounds and sugars, which in turn could be used for the production of important new medicines,” says Prof Roodt.

Caffeine, a major energy enhancer, is also manufactured through photosynthesis in plants. It is commonly found in tea and coffee, but also (artificially added) in energy drinks. Because caffeine is a stimulant of the central nervous system and reduces fatigue and drowsiness, some people prefer decaffeinated coffee when enjoying this hot drink late at night. 

Removing caffeine from coffee could be expensive and time-consuming, but also environmentally unfriendly, because it involves the use of harmful and flammable liquids. Some of the Inorganic Group’s research focus areas include the use of carbon dioxide for the extraction of compounds, such as caffeine from plants. 

“Therefore, the research could lead to the availability of more decaffeinated coffee products. Although decaffeinated coffee is currently aromatic, we want to investigate further to ensure better quality flavours,” says Prof Roodt.

Another research aspect the team is focusing on is the use of carbon dioxide to extract chlorophyll from plants which have medicinal properties themselves. Chemical suppliers sell chlorophyll at R3 000 a gram. “In the process of investigating chlorophyll, our group discovered simpler techniques to comfortably extract larger quantities from green vegetables and other plants,” says Prof Roodt.

Medicines
In addition, the Inorganic Research Group is also looking to use carbon dioxide as a building block for more valuable compounds. Some of these compounds will be used in the Inorganic Group’s research focus on radiopharmaceutical products for the identification and possibly even the treatment of diseases such as certain cancers, tuberculosis, and malaria.

 

 

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