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Published on Dec 15, 2015
The effects of climatic events and interactions with land use and fire regimes are well described in the literature. A radical view is offered that rising CO2 levels not only causes global warming but is the invisible driver of global change in South Africa's grassy systems. Over the last century indigenous trees have encroached on savannas and grasslands, grasses have invaded arid shrublands, and alien plants are invading the Fynbos. The video provides visual evidence of these. Ecologists and land managers discuss the causes and effects, including implications for management and policy.