Osmose is a not-for-profit association linking community-based conservation, ecotourism and environmental education in Prek Toal. Osmose has been supported by UNESCO in Phnom Penh in many projects including: production of a poster depicting the flooded forest and plants of the Tonle Sap Biosphere Reserve, handicraft, and particularly, environemental education (EE). EE was initiated in 2000 when Osmose realized there was an increase in the child population and that education was therefore needed in order to protect their natural resources.