Rajendra Kumar Pachauri (born August 20, 1940, Nainital, India) or 'Patchy' as he is known to friends, is an economist and environmental scientist who has served as the chair of the Intergovernmental Panel on Climate Change (IPCC) since 2002. Pachauri is also the director general of the Energy and Resources Institute in New Delhi, an institution devoted to researching and promoting sustainable development. On December 10, 2007, Dr. Pachauri accepted the Nobel Peace Prize on behalf of the IPCC, along with co-recipient Al Gore.
Rajendra Pachauri is chairman of the IPCC and Director-General of the Tata Energy Research Institute in India