The crossword solution for the term 'WATER SEEN IN 'AN INCONVENIENT TRUTH'' is ARAL. The ARAL Sea was featured in the 2006 documentary film An Inconvenient Truth, which focused on the effects of climate change. The ARAL Sea was once the fourth-largest lake in the world, but due to the diversion of its feeder rivers for irrigation, it has shrunk to less than 10% of its original size. The documentary showed the devastating environmental and economic impact of this loss of water.