South Africa calls for harnessing continent's renewable energy potential Sudan government rolls out first malaria vaccine amid fighting Chad threatens to pull troops sparking uncertainty for anti-terror Force Power shortages, rising fuel costs accelerate shift to solar in Nigeria Ethiopia approves $738 million loan to South Sudan for cross-border highway Cholera outbreak poses deadly threat in eastern Sudan Residents of Mozambique's capital worried over spate of violent protests Tanzania's government says it can safely export surplus abroad Rescue operations underway in Cameroon after double landslide Kenyan community tackles rise of lifestyle diseases using traditional sauna