Despite rain and the death of 41 people in an attack by terrorist group Boko Haram, millions of Nigerians turned out to vote in hotly contested elections to choose the president of Africa's most populous country.
Africa produces the least amount of greenhouse gases, yet will bear the brunt of global climate change. At the C40 Cities Climate Leadership Group summit in Johannesburg this week, mayor Parks Tau welcomed three new African megacities to the network, bringing the total to seven out of 66 world cities.
Moved by experiences with the inhabitants an old age home, Brian Moore now has a new zest for life, and helps out by giving time toward small services for the elderly.
Already known for its progressive green philosophy, Cape Town is about to score another coup by hosting the world’s first interactive climate change centre, a project driven by the Brussels-based International Polar Foundation.
• Preserving memories of Antarctica