Guardian: International environment and development groups have given conflicting opinions over whether Rajendra Pachauri, the chairman of the UN Intergovernmental Panel on Climate Change (IPCC), should resign over criticism of his handling of a false claim about melting glaciers in the panel’s landmark 2007 report. They also fear a drop in the confidence in climate science could undermine governments’ resolve to address global warming, with Greenpeace saying a new leader of the IPCC could restore …