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Environment + Energy – Articles, Analysis, Comment

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A farmer works with his tractor in front of the Kusile Power Station located in eMalahleni. In Gauteng province residents can sometimes smell the pollution coming from this direction. Wikus de Wet/AFP via Getty Images

The air in South African Highveld cities smells foul in the winter: here’s why

Johannesburg occasionally smells like rotten eggs. The wind brings the smell from the east or the southeast, where most industries are located.
Alain Libondo (17) left, and Nsinku Zihindula (25), hammering at solid rock to find cassiterite and coltan at Szibira, South Kivu. Photo by Tom Stoddart via Getty Images

What coltan mining in the DRC costs people and the environment

Coltan is indispensable to the making of modern electronic devices but its mining causes human and environmental disasters in the DR Congo.
Alien trees threaten biodiversity, increase the risk of wildfires and also guzzle water. Photo courtesy Cape Winelands Biosphere Reserve

Removing alien plants can save water: we measured how much

Clearing alien trees from mountain catchments is a more cost-effective approach to providing water than building and maintaining desalination plants.