The University of Venda’s Chair on Climate Change and the Rule of Law (CCRL) together with the Ismail Mahomed Centre for Human and Peoples’ Rights, hosted a thought-provoking guest lecture on 24 February 2026 at the Research Conference Centre. The lecture was titled ‘A Scientist’s Road to Extinction Rebellion,’ and was presented by the renowned environmental scholar, Dr IR Ignas Heitkonig.
Dr IR Ignas Heitkonig, Guest lecturer
Dr IR Ignas Heitkonig traced his journey from student and scientist to environmental activist, highlighting how his life and career developed alongside growing global environmental challenges. Born in 1957, he reflected on how atmospheric carbon dioxide levels had already risen from pre-industrial levels of about 280 parts per million to 315 parts per million, illustrating the early signs of climate change.
Inspired by values of simplicity and respect for nature, he pursued studies in ecology and completed fieldwork in West Africa, where he witnessed the effects of drought and food insecurity. These experiences demonstrated the important role science plays in understanding environmental challenges and finding sustainable solutions, while also shaping his commitment to conservation and responsible resource use.
During his academic career, particularly while teaching at the University of Venda, he taught biological sciences and supervised students while also participating in community initiatives addressing rural development and public health challenges. These experiences highlighted the importance of education and interdisciplinary collaboration in solving real-world problems.
The lecture emphasised the seriousness of global environmental change, particularly biodiversity loss and unsustainable food production systems. Research shows that wild mammals today represent only about three percent of total mammalian biomass, while humans and livestock make up the remaining majority, demonstrating the extent of human pressure on natural ecosystems.
Dr Heitkonig also highlighted the environmental costs of modern diets, noting that producing a single serving of beef requires thousands of litres of water and large areas of land, much of which is used to grow animal feed instead of food for direct human consumption. Shifting toward more sustainable food systems and balanced diets could reduce environmental pressure while ensuring food security for a growing global population.
The lecture concluded with a call for stronger action to address climate change and biodiversity loss. Dr Heitkonig emphasised that education and scientific knowledge must guide efforts to build a more sustainable future.
The lecture stimulated meaningful engagement among participants, followed by an interactive question-and-answer session where attendees shared insights and perspectives on climate change and activism.
Prof Tharien van der Walt, the Acting Executive Dean of the Faculty of Management, Commerce and Law
Prof Tharien van der Walt, gave welcome remarks and welcomed guests and participants to the public lecture. She noted that the lecture, “A Scientist’s Road to Extinction Rebellion,” would provide valuable insights into conservation and climate justice and encouraged attendees to engage actively in the discussion and question session.
Prof Ademola Oluborode Jegede, Director of the Ismail Mahomed Centre for Human and Peoples’ Rights
Prof Ademola Oluborode Jegede gave opening remarks. He highlighted the urgent triple planetary crisis of climate change, biodiversity loss and pollution. He noted that rising temperatures, ecosystem destruction and pollution threaten both nature and human health, stressing that new approaches are needed.
Prof Lonias Ndlovu, Director School of Law
Prof Lonias Ndlovu expressed sincere thanks to the guest speaker for an inspiring and relevant lecture that touched both hearts and minds. He acknowledged all the staff and students for making the event a success and extended special appreciation to Dr Heitköning and his wife for their presence and support. He highlighted the lecture’s value in shaping knowledge and the future.
The guest lecture demonstrated the University of Venda’s leadership in climate change scholarship and its commitment to fostering dialogue on pressing global challenges. It also provided a valuable platform for intellectual exchange and inspired participants to consider innovative approaches to environmental sustainability and social responsibility.
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