The word SES can refer to a number of things. Single European Sky is the policy and initiative of the European Commission to have a comprehensive air traffic control management system for the whole of Europe. State Emergency Service is the name of a voluntary organisations formed for tackling emergencies in Australia. Socioeconomic status is a concept found in sociology. Socioeconomics is a field of study that deals with the relationship that exists between the economy and society. SES Astra is a European based company that operates satellites that hosts hundreds of video and audio channels. The Single Economic Space or the Common Economic Space refers to a commercial zone comprising parts of Europe and Russia. There is also a book Sex Ecology Spirituality that was written by Ken Wilber an integral philosopher. There is also a School of Environmental Studies in Minnesota's Apple Valley in the United States.