BBC: The UN’s climate science body needs “fundamental” reforms, including a shorter term for its chairperson, an international review has concluded. The Intergovernmental Panel on Climate Change (IPCC) has faced mounting pressure over errors in its last major assessment of climate science in 2007. The review commends the IPCC on the way it carried out previous assessments. But the report recommends changes to the way the body is run and the way science is …