World Science Podcast, August 14, 2009: A look at global water issues: In Cambodia, a crucial lake is under stress; in the Middle East, drought adds to Arab-Israeli tension. Plus climate change adds to water woes.

Summary: World Science Podcast, August 14, 2009: A look at global water issues: In Cambodia, a crucial lake is under stress; in the Middle East, drought adds to Arab-Israeli tension. Plus climate change adds to water woes.