Major American companies are changing their strategies when it comes to global warming. We hear about the political consequences of Exxon Mobil and others now being willing to pay tax on carbon emissions, amid growing concern about the urgency of preparing for climate change. Also, Nelson Mandela's life is honored in a Soweto stadium, and GM chooses the first woman to lead an American auto-maker.
Banner image: Exhibition game at Nationals Park, Washington, DC. Photo: afagen