Drop a Thought - Hebrew This site, part of the CET site deals with water shortage and the process of water conservation. Water and Rivers - Hebrew This site is part of the Israel's Ministry of Environment site. You will find information there about water resources and water pollution around the world and in Israel. The explanations are accompanied with lots of diagrams. Water Science for School - English This site offers information on many aspects of water, along with pictures, data, maps and an interactive center where you can give opinions and test your water knowledge. World Resources Institute - English This site deals with the question whether there is a critical shortage of water ahead in several areas around the world.