allAfrica: Nobel laureate says 'people of conscience' must break ties with oil and gas companies that are destroying planet's future. Archbishop emeritus of Cape Town and Nobel Peace Prize laureate Desmond Tutu is saying there is no longer any excuse for not doing everything humanly possible to fight climate change and called on Thursday for an international "anti-apartheid-style boycott" against the fossil fuel industry. In a striking essay and call to action in The Guardian newspaper, Tutu writes: "People...