Dust from drought-ravaged Free State threatens SA food security
The plumes are a warning since the country relies on maize fields in that province for staple foods
Large tracts of agricultural land, decimated by drought in the northern Free State, have been identified as a major source of wind-borne dust – and a threat to food security – in SA.
Researchers used satellite imagery, captured over a decade, to study and track the origin of dust plumes.
“The western Free State is clearly the most emissive dust-producing area in South Africa,” said associate professor Frank Eckardt from the University of Cape Town’s Department of Environmental and Geographical Science...