Traditional practices of maintaining indigenous biodiversity are in danger as a result of stresses caused by climate change and human activities.

In southern Africa, the connections between climate and the water–energy–food nexus are strong. Physical and socioeconomic exposure to climate is high in many areas and in crucial economic sectors.

Although wild natural resources are a standard dietary component in southern Africa, little information exists on these resources' specific role in the maintenance of household food security among HIV-impacted households.

The paper presents a Watershed Computable General Equilibrium (CGE) Model for the Olifants River Catchment." A CGE provides an appropriate framework in which to explore policy alternatives for achieving more efficient water and land use.