The Geneva Environment Network is a cooperative partnership of more than 100 environmental and sustainable development organizations based at the International Environment House in Geneva and at other locations in the surrounding region. Established in 1999, GEN is the oldest of the thematic platforms of International Geneva, specialized in conducting multilateral activities, conferences and other events, and promoting awareness on environmental issues. The Secretariat is supported by the Swiss Federal Office for the Environment and is administered by the United Nations Environment Programme.