Agence France-Presse: The United Nations Intergovernmental Panel on Climate Change (IPCC) said Tuesday it has re-elected chairman Rajendra Pachauri for a second term. Pachauri has been head of the organisation since 2002 and oversaw its seminal assessment report in 2007 which gave graphic forecasts of the risks posed by global warming. The IPCC warned then that without action the planet’s rising temperatures could unleash potentially catastrophic change to earth’s climate system, leading to hunger, …