by Anne Fitchett, Retired Honorary Associate Professor in the School of Civil and Environmental Engineering, University of the Witwatersrand – this article was first published on 10 December 2025 in theconversation.com Every year, millions of tonnes of food end up in South Africa’s landfills. This is a wasted resource that deepens environmental damage, worsens food […]
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Amazing pineapple leaf powder that fights crime and pollution: new research
by Bienvenu Gael Fouda Mbanga, Research fellow, Nelson Mandela University – this article was first published in theconversation.com In South Africa, manufacturers of pineapple juice and other pineapple products discard thousands of tons of pineapple leaves every year, with most ending up in dumpsites. The leaves are seen as agricultural waste and usually treated as […]
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Biodiversity: A Reader
by GST Staff Biodiversity loss must stop by 2030 to protect Earth’s life-support systems BIODIVERSITY LOSS MUST be halted by 2030 to keep the Earth’s life-support systems stable, according to new research. Across species, ecosystems, and the natural processes that move water and nutrients, the study acknowledges the danger inside the systems people rely on […]
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Waste, Pollution and Recycling: A Reader
by GST Staff Cactus waste could become a low-cost building material Construction sites don’t usually bring cactus plants to mind. Still, engineers think leftover material from prickly pear cactus farming could offer a cleaner, lower-cost way to make building materials. At first, the idea may sound unusual. But it points to a real problem in […]
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Jules of the Karoo: premier home of the springbok
by Anne Kruger, GST Correspondent In the heart of South Africa’s Northern Cape lies Jules of the Karoo Safaris, a testament to sustainable tourism and conservation. This working Merino sheep farm is renowned for its Springbok breeding and trophy hunting. These combined activities ensure sustainability. As a member of GST, the GST measure and manage […]
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Sustainability steps: Municipal waste disposal changes in the pipeline
by Anne Kruger, GST Correspondent With the growing importance of environmental sustainability in mind, GST recently looked into the current status of the waste disposal process in the Drakenstein Municipality. Despite the fact that Drakenstein Municipality has a successful recycling process for inorganic waste implemented throughout the municipal area, this is not considered enough to […]
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