Storm (image) University of the Witwatersrand Share Print E-Mail Caption A dust storm rolls over the plains of the Free State Province, South Africa. The risk of multi-year droughts occurring in southern Africa are projected to increase under low-mitigation climate change futures. Credit Francois Engelbrecht/Wits University Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.