The Greening of the Deserts - Episode 1

Ayisha Yahya explores predictions from some scientists and meteorologists that some deserts, including the Sahara, could get greener in the future and experience more rainfall. This runs contrary to more usual predictions about the future of global warming in Africa that envisage more drought, floods, land degradation, epidemics and resource wars. Ayisha travels to Mali and Egypt to explore the arguments.