The World Meteorological Organization (WMO) is an intergovernmental organization with its headquarters in Geneva, Switzerland, and is a member of the United Nations Development Group. It has a membership of 191 member states and territories. The current Secretary-General of WMO is Michel Jarraud and the current president is David Grimes. The recent analysis of WMO pointed that 2015 year is very likely to be the hottest year on record worldwide.